摘要:
Aramid and aramid-blend fabrics are dyed and optionally flame-retardant treated using conventional pressure and heat dyeing equipment. Odor-free, colored or colored and highly flame resistant products result.
摘要:
Novel polyacrylic acid resins are prepared by polymerizing H2C=CHCO2H, H2C=CRCO2X, or HRC=CHCO2X, wherein R is an aliphatic or aromatic hydrocarbon, halogenated hydrocarbon, or sulfonated hydrocarbon of from C1 to C20, phenol, naphthol, sulfonated phenol, sulfonated naphthol, or a halogen, and X is hydrogen, alkyl, or a hydroxylated, ethoxylated, sulfonated, or halogenated aliphatic or aromatic hydrocarbon of from C1 to C20, sodium, potassium, ammonium, or quaternary amine, in the presence of aromatic sulfonic acid or its salt to form a polymer in which the sulfonated aromatic compound is covalently bound to the polymer. In an alternative embodiment, a textile processing or cleansing compound is included in the polymerization reaction along with the acrylic acid and aromatic sulfonic acid or its salt. The resulting polymers have superior properties for use in textile processing and cleaning, and can be used as detergents, acid dye levelers, surfactans, emulsifiers, yarn lubricants, copolymerizing agents, polymer after treat agents, defoamers, chelating agents, flocculants, anti-static agents, flame retardants, metal cleaners, metal coatings, and as multipurpose acids.
摘要:
Polyester/cotton and nylon/cotton blends are rendered flame-resistant in single or a two step process in which a THP salt/prepolymer condensate of urea is applied, exposed to ammonia, then oxidized to form a polymer network in the cotton fibers, and a cyclic phosphonate ester or hexabromocyclododecane is applied to impart flame resistance to the nylon or polyester fibers. Flame-resistant cotton/synthetic blended fabrics having excellent hand and washfastness result.
摘要:
A process for imparting flame resistance to a polyester/cotton blend fabric containing at least 20% by weight polyester comprises the successive steps of: (1) applying to a polyester/cotton blend fabric a flame-retarding amount of a cyclic phosphonate ester represented by the formula: in which x is 0 or 1 or a flame-retarding amount of hexabromocyclododecane, that fixes onto the polyester fibres; (2) optionally applying to the fabric a flame-retarding amount of a prepolymer condensate of urea and a tetrakis(hydroxymethyl)phosphonium (THP) salt flame retardant that fixes to the cotton fibres, exposing the prepolymer condensate-containing fabric to a source of ammonia to form an ammoniated prepolymer to form a flame-retardant polymer network within the cotton fibre structure; and (3) applying a flame-retarding amount of THP salt and urea to the fabric, heating the fabric to form an insoluble phosphorus-containing polymer in and on the cotton fibres and oxidizing the fabric to further improve the flame resistance imparted by the phosphorus.
摘要:
The invention relates primarily to quaternized compounds having formula (I), wherein m is an integer having a value of from 1 to 4; R is alkylene having from 3 to 8 carbon atoms and is optionally substituted with C1 to C4 alkyl; R1, R2 and R3 are each independently selected from the group of alkyl, alkyleneoxyalkyl, alkyleneoxyalkenyl, alkylhydroxy, aryl, aralkenyl, aralkyl, alkaryl, alkyleneamidoalkyl, alkylenecarbamoylalkyl, arylcarbamoylalkyl and arylamidoalkyl radicals, said groups each having from 1 to 30 carbon atoms and at least one of R1, R2 and R3 is a radical having from 8 to 30 carbon atoms, except that R2 and R3 with the quaternized nitrogen can form a 5 to 14 membered heterocyclic ring having from 1 to 2 heteroatoms selected from the group of oxygen, nitrogen and sulfur, in which case R1 can also represent a double bond in the quaternized heterocyclic ring.
摘要:
A new process and group of products is provided that are useful in preventing nylon and wool fibers, including carpeting and upholstery, from being permanently stained by food colours. This new group of sulfonated phenol-formaldehyde or naphthol-formaldehyde and anionic surfactant compounds not only block the stain from the fiber but also minimizes any yellowing or discolouration of the treated fibers during the application and during the subsequent exposure to sunlight or commonly used lightfastness testing equipment.
摘要:
A new process and group of products is provided that are useful in preventing nylon and wool fibers, including carpeting and upholstery, from being permanently stained by food colours. This new group of sulfonated phenol-formaldehyde or naphthol-formaldehyde and anionic surfactant compounds not only block the stain from the fiber but also minimizes any yellowing or discolouration of the treated fibers during the application and during the subsequent exposure to sunlight or commonly used lightfastness testing equipment.