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US 9,074,316 B2Granted
Method for fireproofing textiles
AssigneeCtf 2000 NV
InventorsJohan Deschietere, Luc Carlier
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Abstract
This invention relates to a method for fireproofing textiles based on a composition having two components comprising: a component A comprising at least one phosphorous compound; and a component B comprising urea and at least one pH buffer, optionally with an oxidizing agent. Said method for fireproofing textiles includes the steps of immersing said textiles in said composition, and of heating, oxidizing and then washing said textiles, which then have excellent human-ecological, comfort, and durable fireproofing properties.
Claims13
A fireproofing treatment method for textiles, the method comprising:
- a) preparing a first bath comprising a composition having two components A and B, with component A comprising at least one phosphorous compound and component B comprising urea and at least one pH buffer, the first bath having a pH of between 3.5 and 6;
- b) impregnating a textile to be treated in the first bath;
- c) heat-drying of the impregnated textile at a temperature between 130° C. and 165° C., during which drying a polymerisation reaction of the urea of component B and the phosphorous compound of component A occurs to produce a polymer;
- d) oxidizing the polymer in a second bath, wherein the second bath includes at least one oxidising compound, and a mixture of diacetone acrylamide and at least one organic acid dihydrazide;
- and
- e) washing in water and drying of the treated textile.
3 more elements
Dependencies are inferred from the claim text.