KR880000359A - Aramid dyeing and flame retardant process - Google Patents

Abstract

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Description

Aramid dyeing and flame retardant process

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Claims (16)

(1) Flame retardant amounts of cyclic phosphonate ester flame retardants and disperse dyes, acid dyes or both of the dyeable poly (m-phenylene isophthalimide) fibers or fabrics represented by the following formulas (A) or (B): Contacting with a solution substantially composed of a dye or the like; (2) heating the aramid fibers treated in step (1) to fix the dye to the fibers, wherein the dyeing and flame retardant treatment of the aramid fibers are carried out simultaneously. In which a is 0, or 1; b is or 2; c is 1,2 or 3; a + b + c is R and R 'are the same or different from each other alkyl (C ₁ -C ₈ ), phenyl, halophenyl, hydroxyphenyl, tolyl, xylyl, benzyl, phenethyl, hydroxyethyl, phenoxy Cyethyl or dibromophenoxymethyl; R ² is alkyl (C ₁ -C ₄ ); R ³ is lower alkyl (C ₁ -C ₄ ) or hydroxyalkyl (C ₁ -C ₄ ). d is 0,1 or 2; e is 1,2 or 3; R ² is alkyl (C ₁ -C ₄ ); R ³ is lower alkyl (C ₁ -C ₄ ) or hydroxyalkyl (C ₁ -C ₄ ) hydroxyalkyl (C ₁ -C ₄ ); R ⁴ is alkyl (C ₁ -C ₄ ) phenyl, halophenyl, hydroxyphenyl, hydroxyethyl, phenoxyethyl, dibromophenoxyethyl, tulyl, xylyl, benzyl, or phenethyl; R ⁵ is monovalent alkyl (C ₁ -C ₆ ), chlorophenyl, bromophenyl, dibromophenyl, tribromophenyl, hydroxyphenyl, naphthyl, tolyl, xylyl, benzyl, or phenethyl; Divalent alkylene (C ₁ -C ₆ ), vinylene, o-phenylene, m-phenylene, p-phenylene, tetrachlorophenylene (o, m or p), or tetrabromophenylene (o , m or p); Or trivalent phenenyl. The process according to claim 1, wherein the solution contains a dispersible dye in an amount that can be colored. The process according to claim 1, wherein the solution contains an amount of acid dye which can be colored. The process of claim 1 wherein the solution is applied by padding onto aramid fibers. The process according to claim 1, wherein the flame retardant and the dye are applied as a printing paste. The process of claim 1, wherein the fiber or fabric is heated to a temperature of about 177 ° C. to about 205 ° C. in step (2). The process according to claim 1, wherein the fiber or fabric is heated in step (2) for about 30 seconds to about 2 minutes. 7. The process according to claim 6, wherein the fiber or fabric is heated in step (2) for about 30 seconds to about 2 minutes. (1) Flame retardant cyclic phosphonate ester flame retardant and disperse dye, acid dye or two dyes of dyeable poly (m-phenyleneisophthalamide) fibers represented by the following formula (A) or (B) Contacting a substantially configured solution, wherein the solution is maintained at a temperature below the boiling point of the solution from a temperature of about 149 ° C .; (2) contacting the fibers with the solution until the dye has settled in the fibers; (3) dyeing and flame retardant treatment step of the dyeable aramid fibers, characterized in that the step consisting of recovering and drying the dyed and flame-retardant fibers. In which a is 0, or 1; b is 0, 1 or 2; c is 1,2 or 3; a + b + c is 3; R and R 'are the same or different from each other and are alkyl (C ₁ -C ₈ ), phenyl, halophenyl, hydroxyphenyl, tolyl, xylyl, benzyl, phenene, hydroxyethyl, phenoxyethyl or dibromo Phenoxymethyl; R ² is alkyl (C ₁ -C ₄ ); R ³ is lower alkyl (C ₁ -C ₄ ) or hydroxyalkyl (C ₁ -C ₄ ). d is 0, 1 or 2; e is 1,2 or 3; R ² is alkyl (C ₁ -C ₄ ); R ³ is lower alkyl (C ₁ -C ₄ ) or hydroxyalkyl (C ₁ -C ₄ ) or hydroxyalkyl (C ₁ -C ₄ ); R ⁴ is alkyl (C ₁ -C ₄ ), phenyl, halophenyl, hydroxyphenyl, hydroxyethyl, phenoxyethyl, dibromophenoxyethyl, tolyl, xylyl, benzyl, or phenethyl; R ⁵ is monovalent alkyl (C ₁ -C ₆ ), chlorophenyl, bromophenyl, dibromophenyl, tribromophenyl, hydroxyphenyl, naphthyl, tolyl, xylyl, benzyl, or phenethyl; Divalent alkylene (C ₁ -C ₆ ), vinylene, o-phenylene, m-phenylene, p-phenylene, tetrachlorophenylene (o, m or p) or tetrabromophenylene (o, m or p); Or trivalent phenenyl. The process of claim 9, wherein the solution is maintained at about 149 ° C. to about 205 ° C. 11. The process of claim 10 wherein the fiber is in contact with the heated solution for about 15 seconds to about 2 minutes. The process according to claim 10, wherein the dye is a disperse dye. The process according to claim 10, wherein the dye is an acid dye. Dyed poly (m-phenyleneisophthalamide) fibers prepared in the process of claim 1 having a marginal oxygen index of at least 12% (absolute) higher than undyed fibers as measured by ASTM method D-2863-77. Or fabric. Dyed poly (m-phenyleneisophthalamide) fibers prepared in the process of claim 9 having a marginal oxygen index of at least 12% (absolute) higher than undyed fibers as measured by ASTM method D-2863-77. Or fabric. Dyeing with acid dyes or disperse dyes having a marginal oxygen index of at least 12% (absolute) higher than untreated poly (m-phenyleneisophthalamide) fibers and by one of the following formulas (A) or (B) Dyed and flame retarded polymeric fibers made from poly (m-phenyleneisophthalamide) flame retarded with at least one cyclic phosphonate ester present In which a is 0, or 1; b is 0, 1 or 2; c is 1,2 or 3; a + b + c is 3; R and R 'are the same or different from each other and are alkyl (C ₁ -C ₈ ), phenyl, halophenyl, hydroxyphenyl, tolyl, xylyl, benzyl, phenethyl, hydroxyethyl, phenoxyethyl or dibromo Phenoxymethyl; R ² is alkyl (C ₁ -C ₄ ); R ³ is lower alkyl (C ₁ -C ₄ ) or hydroxyalkyl (C ₁ -C ₄ ). d is 0, 1 or 2; e is 1,2 or 3; R ² is alkyl (C ₁ -C ₄ ); R ³ is lower alkyl (C ₁ -C ₄ ) or hydroxyalkyl (C ₁ -C ₄ ) or hydroxyalkyl (C ₁ -C ₄ ); R ⁴ is alkyl (C ₁ -C ₄ ) phenyl, halophenyl, hydroxyphenyl, hydroxyethyl, phenoxyethyl, dibromophenoxyethyl, tolyl, xylyl, benzyl, or phenethyl; R ⁵ is monovalent alkyl (C ₁ -C ₆ ), chlorophenyl, bromophenyl, dibromophenyl, tribromophenyl, hydroxyphenyl, naphthyl, tolyl, xylyl, benzyl, or phenethyl; Divalent alkylene (C ₁ -C ₆ ), vinylene, o-phenylene, m-phenylene, p-phenylene, tetrachlorophenylene (o, m or p) or tetrabromophenylene (o, m or p); Or trivalent phenenyl. ※ Note: The disclosure is based on the initial application.