Method for Producing a Flame-Resistant Textile Article

Abstract

Method for making a cellulose-comprising, flame-resistant, textile article comprising multiple flame-retardant treatments. The method comprises: a. providing at least part of the textile article with a non-cellulose-reactive, phosphorous-containing, flame-retardant compound, and b. providing at least part of the textile article with a cellulose-reactive, phosphorous-containing, flame-retardant compound. The method is suitable for producing flame-resistant, textile articles such as flame-resistant garments. Said garments can be used to protect individuals from flames and/or heat.

1 . A method for making a textile article flame-resistant, wherein the textile article comprises cellulose-containing fibres, the method comprising:
 a. providing at least part of the textile article with a non-cellulose-reactive, phosphorous-containing, flame-retardant compound, and   b. providing at least part of the textile article with a cellulose-reactive, phosphorous-containing, flame-retardant compound,   
       wherein the parts treated according to treatments a. and b. coincide at least partially. 
     
     
         2 . The method of  claim 1 , wherein treatments a. and b. are provided on cellulose comprising fibres before they are combined to form the textile article. 
     
     
         3 . The method of  claim 1  wherein treatment a. is provided prior to treatment b. 
     
     
         4 . The method of  claim 1  wherein treatment a. comprises providing a regenerated cellulosic spun fibre with a non-cellulose-reactive, phosphorous-containing, flame-retardant particulate by adding said particulates during production of the fibre prior to spinning. 
     
     
         5 . The method of  claim 4  wherein treatment a. is performed prior to treatment b. 
     
     
         6 . The method of  claim 1 , wherein treatment a. comprises the formation of a cross-linked network of a non-cellulose-reactive, phosphorous-containing compound around and/or throughout the molecular structure of the fibre. 
     
     
         7 . The method of  claim 6 , wherein treatments a. and b. are performed on the textile article. 
     
     
         8 . (canceled) 
     
     
         9 . (canceled) 
     
     
         10 . The method of  claim 1 , wherein the cellulose-reactive, phosphorous-containing, flame-retardant compound provided in treatment b. comprises N-methylol phosphonate, more preferably N-methylol dimethyl phosphonopropionamide. 
     
     
         11 . The method of  claim 1 , wherein the cellulose-reactive, phosphorous-containing, flame-retardant compound is applied from a solution comprising less than 300 g/L of the compound, more preferably less than 100 g/L and even more preferably less than 50 g/L. 
     
     
         12 . A method for making a flame-resistant, cellulose-containing fabric, the method comprising:
 a. providing cellulose-containing fibres provided with a non-cellulose-reactive, phosphorous-containing, flame-retardant compound;   weaving the cellulose-containing fibres to produce a woven flame-retardant fabric; and   b. treating the fabric with a cellulose-reactive, phosphorous-containing, flame-retardant compound.   
     
     
         13 . The method of  claim 12 , wherein the fibres provided in a. comprise regenerated cellulose
 and the non-cellulose-reactive, phosphorous-containing, flame-retardant compound consists of particulates which are distributed throughout the fibres.   
     
     
         14 .- 15 . (canceled) 
     
     
         16 . Flame-resistant textile article obtainable by the method of  claim 1 . 
     
     
         17 .- 25 . (canceled) 
     
     
         26 . Garment comprising the flame-resistant textile article according to  claim 16 . 
     
     
         27 . Use of a non-cellulose-reactive, phosphorous-containing, flame-retardant compound and a cellulose-reactive, phosphorous-containing, flame-retardant compound in the method of  claim 1 . 
     
     
         28 . (canceled) 
     
     
         29 . A flame-resistant textile article comprising phosphorous, the phosphorous being present both as chemically-bound phosphorous and as non-chemically-bound phosphorous. 
     
     
         30 . The flame-resistant textile article according to  claim 29  wherein 70-90 wt % of the phosphorous is present as non-chemically-bound phosphorous and 30-10 wt % of the phosphorous is present as chemically-bound phosphorous. 
     
     
         31 . (canceled) 
     
     
         32 . The flame-resistant textile article according to  claim 29  wherein the textile-article is a fabric or a garment. 
     
     
         33 . Flame-resistant fabric obtainable by the method of  claim 12 . 
     
     
         34 . Garment comprising the flame resistant fabric according to  claim 33 . 
     
     
         35 . Use of a non-cellulose-reactive, phosphorous-containing, flame-retardant compound and a cellulose-reactive, phosphorous-containing, flame-retardant compound in the method of  claim 12 .