Textiles having flame protection function
AssigneeSchoeller Textil AG
InventorsRoland Lottenbach, Vedran Gartmann
Life of this patent
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Abstract
The invention relates to flame-retardant foam coatings for textile sheet products, wherein the coatings include plate-like expandable graphite which has a reduced salt content and a particle distribution with a proportion of >80 percent by weight having a diameter of at least 0.2 mm, and/or a minimum proportion of 70% having a mesh size of >50 mesh (0.3 mm), at least one binder and at least one foam stabilizer, and also processes for the production thereof, the use thereof for producing textile sheet products and also textile sheet products having such flame-retardant foam coatings.
Claims21
A process for producing a flame-retardant, textile sheet product comprising a textile substrate layer, which comprises:
- a) reduction of a washable salt content of plate-like expandable graphite by additional washing, to a proportion of below 0.8% by weight, on a basis of total weight of the plate-like expandable graphite which has been reduced in washable salt, the plate-like expandable graphite having an average plate diameter of at least 0.5 mm, and/or a minimum proportion of 70% by weight having a mesh size of >50 mesh (0.3 mm) being selected,
- b) production of a paste comprising at least one binder, at least one foam stabilizer and expandable graphite which has been reduced in salt as specified in a),
- c) mechanical foaming of a paste produced according to b),
- d) coating of a textile substrate layer with a foam produced according to c),
- e) drying of the foam layer, and
- f) optionally pressing of the foam layer after drying.
Dependencies are inferred from the claim text.