Dyeing and printing of fabrics including partially aromatic polyamides

Abstract

An article exhibiting flame resistant or flame retardant (FR) property including a fabric that has received a pre-treatment applied dye or print or combinations thereof; and a post-treatment applied FR additive. The fabric includes a primary yarn including a fiber having vapor phase action and a partially aromatic polyamide fiber.

What is claimed is: 
     
         1 . An article exhibiting flame resistant or flame retardant (FR) property comprising:
 (a) a fabric including a pre-treatment applied dye or print or combinations thereof; and   (b) a post-treatment applied FR additive;   
       wherein said fabric includes a primary yarn comprising a fiber having vapor phase action and a partially aromatic polyamide fiber. 
     
     
         2 . The article of  claim 1 , wherein said pre-treatment includes a dye selected from the group consisting of acid dye, cationic dye, disperse dye, vat dye, reactive dye and combinations thereof. 
     
     
         3 . The article of  claim 1 , wherein said fabric is dyed to a union shade. 
     
     
         4 . The article of  claim 1 , wherein said pre-treatment further comprises a second FR treatment. 
     
     
         5 . The article of  claim 1 , wherein said partially aromatic polyamide is spun into fiber without FR additives. 
     
     
         6 . The article of  claim 1 , wherein the partially aromatic polyamide comprises polymers or copolymers comprising monomers selected from the group consisting of aromatic diamine monomers, aliphatic diamine monomers, aromatic diacid monomers, aliphatic diacid monomers and combinations thereof. 
     
     
         7 . The article of  claim 6 , wherein the partially aromatic polyamide further comprises aromatic diamine monomers and aliphatic diacid monomers. 
     
     
         8 . The article of  claim 1 , wherein the partially aromatic polyamide is MXD6. 
     
     
         9 . The article of  claim 1 , wherein said partially aromatic polyamide fiber comprises a form selected from the group consisting of staple, continuous filament, and combinations thereof. 
     
     
         10 . The article of  claim 1 , wherein said primary yarn includes a twisted yarn, a ply-twisted yarn, a textured yarn, a blended staple yarn, and combinations thereof. 
     
     
         11 . The article of  claim 1 , wherein said partially aromatic polyamide fiber is present in said primary yarn in an amount of about 5% to about 75% by weight of the primary yarn. 
     
     
         12 . The article of  claim 1 , wherein said fiber having vapor phase action is selected from modacrylic fiber, cellulose fiber, and combinations thereof. 
     
     
         13 . The article of  claim 1 , wherein said primary yarn further includes an additional fiber selected from the group consisting of FR polyester, FR nylon, FR rayon, m-aramid, p-aramid, modacrylic, novoloid, melamine, poly(p-phenylene benzobisoxazole (PBO), polybenzimidazole (PBI), polysulphonamide (PSA), oxidized acrylic, partially oxidized acrylic, and combinations thereof. 
     
     
         14 . The article of  claim 1 , wherein said article is a fabric. 
     
     
         15 . The article of  claim 1 , wherein said article is a garment. 
     
     
         16 . The article of  claim 1 , further comprising at least one additional yarn which is compositionally different from said primary yarn. 
     
     
         17 . An article exhibiting flame resistant or flame retardant property comprising:
 (a) a fabric including a pre-treatment consisting of dyeing, printing, and combinations thereof; and   (b) a post-treatment including a flame resistant treatment or flame retardant treatment;   
       wherein said fabric includes a primary yarn comprising a cotton fiber and a partially aromatic polyamide fiber. 
     
     
         18 . A method for preparing an article exhibiting flame resistant or flame retardant property comprising the following sequential process:
 (a) preparing a fabric including primary yarn comprising a fiber having vapor phase action and a partially aromatic polyamide fiber;   (b) providing a pre-treatment selected from the group consisting of dyeing, printing, and combinations thereof; and   (c) a post-treatment including a flame resistant or flame retardant (FR) treatment.   
     
     
         19 . The method of  claim 18  further comprising a second printing step following the post-treatment including a flame resistant or flame retardant treatment. 
     
     
         20 . The method of  claim 18 , wherein said fiber having vapor phase action is a cellulosic fiber. 
     
     
         21 . The method of  claim 20 , wherein said cellulosic fiber comprises cotton. 
     
     
         22 . The method of  claim 18 , wherein the pre-treatment further comprising a second FR treatment.