Special paper or cardboard not otherwise provided for

DTEXTILES PAPER D21Papermaking D21HPULP COMPOSITIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D IMPREGNATING OR COATING OF PAPER TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G PAPER NOT OTHERWISE PROVIDED FOR

D21H5/00Special paper or cardboard not otherwise provided for

D21H5/0002Flame-resistant papers; (complex) compositions rendering paper fire-resistant D21H5/0005Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board D21H5/0007Pretreatment of paper to which liquids or other fluent materials are to be applied D21H5/001by treating paper or board in discontinuous form D21H5/0012by bringing paper into contact with an excess of fluids, the paper carrying away only a part of the fluid material D21H5/0015only one side of the paper being in contact with the treating medium D21H5/0017Trailing blade coaters D21H5/002the paper being at least partly surrounded by treating medium on both sides D21H5/0022treating medium being a gas or vapour D21H5/0025by contact with a device carrying the treating material D21H5/0027by a rubbing device D21H5/003with a roller D21H5/0032Details thereof D21H5/0035the coating material on the applicator roller being subjected to a particular treatment before applying to paper D21H5/0037Reverse roll coating D21H5/004the treating material being non-fluent at the moment of transfer D21H5/0042by pouring or allowing to flow in a continuous stream onto the surface, the entire stream being carried away by the paper D21H5/0045Falling curtain method D21H5/0047by spraying or projecting D21H5/005involving several different techniques of application D21H5/0052Plural serial stages D21H5/0055Plural parallel stages D21H5/0057Apparatus permitting switching from one technique to another D21H5/006Controlling or regulating D21H5/0062Regulating the amount or the distribution D21H5/0065with blades D21H5/0067with an essentially cylindrical body D21H5/007with a blast of gas or vapour D21H5/0072Anti-slip papers D21H5/0075Anti-friction, anti-abrasive or release paper D21H5/0077Transparent papers D21H5/008characterised by the use of special fibrous materials as well as special compounds D21H5/0082Wall papers D21H5/0085Paper for surface-protection and decorative purposes D21H5/0087Aspect concerning the core layer(s) D21H5/009Aspect concerning the anchor layer(s) D21H5/0092Post-treated paper D21H5/0095with means capable of destructing or weakening the paper structure D21H5/0097with means restoring or reinforcing the paper-structure D21H5/02Patterned paper D21H5/025Webs provided with apertures D21H5/04marbled D21H5/06Apparatus D21H5/08Vegetable parchment D21H5/12characterised by the use of special fibrous materials D21H5/1209of protein fibres D21H5/1218of crimped or crimpable fibres D21H5/1227of polysaccharide fibres other than cellulosic D21H5/1236of fibres which have been treated to render them suitable for sheet formation D21H5/1245of long or continuous filaments D21H5/1254of fibres which have been treated to improve their dispersion in the paper-making furnish D21H5/1263of fibres which have been swollen D21H5/1272of fibres which can be physically or chemically modified during or after web formation D21H5/1281by chemical treatment D21H5/129by thermal treatment D21H5/14of cellulose fibres only D21H5/141of fibrous cellulose derivatives D21H5/143grafted or encapsulated cellulose D21H5/145cellulose esters D21H5/146cellulose acetate D21H5/148viscose D21H5/16Tobacco or cigarette paper D21H5/18of inorganic fibres with or without cellulose fibres D21H5/183of asbestos fibres D21H5/186of mica fibres or flakes D21H5/20of organic non-cellulosic fibres too short for spinning, with or without cellulose fibres D21H5/202polyolefins D21H5/205acrylic fibres D21H5/207polyester fibres D21H5/22Fungicidal, bactericidal, insecticidal, disinfecting, antiseptic, or corrosion-inhibiting paper antistatic, antioxygenic paper D21H5/24having enhanced flexibility or extensibility produced by mechanical treatment of the unfinished paper D21H5/245obtained by compressing the (moist) paper in directions lying in, and optionally perpendicular to, the paper plane D21H5/26Special paper or cardboard manufactured by dry method; Apparatus or processes for forming webs by dry method from mainly short-fibre or particle material D21H5/2607Pretreatment and individualisation of the fibres, formation of the mixture fibres-gas and laying the fibres on a forming surface D21H5/2614Detachment of the fibres from their compressed state D21H5/2621Distribution of the fibres in the gas stream and on the forming surface D21H5/2628Formation of a product from several constituents D21H5/2635forming a final homogeneous product D21H5/2642forming a final non-homogeneous product D21H5/265Treatment of the formed web D21H5/2657Consolidation D21H5/2664Addition of a binder D21H5/2671Compression of the web, optionally with the use of a binder D21H5/2678Manufacture of layered products (assembly of superposed sheets), comprising the consolidation of such a structure D21H5/2685by dry method on to a web or on or between several preformed webs, at least one of which has been formed by another method D21H5/2692Assembly of several preformed webs, at least one of which has been formed by dry method