Patent GB-669991-A (GB)
Title: Improvements in or relating to a method of preparing finishing agents for textile materials, method of finishing said textile materials and the finished textile materials resulting from said method
IPC: D06M15/423
Filed: 1948-08-06
Abstract: A monomeric or low polymeric aliphatic or heterocyclic amino compound-aldehyde condensation product is reacted with a halogenating agent which contains active halogen per se or which yields active halogen under the conditions of reaction until the condensation product contains active halogen, the product being used as a finishing agent for textiles to improve their dimensional stability, and their resistance to felting or creasing.  Amino-triazine condensation products such as melamine-aldehyde; 2,4 - diamino - 6 - hydroxy - S - triazine aldehyde; 2,4 - diamino - 6 - chloro - S - triazine aldehyde; thiourea modified melamine aldehyde; melam aldehyde; urea-, thiourea-, dicyandiamide-, cyanamide-, and guanidine-aldehyde condensation products may be so reacted.  The condensation products may be alkylated as by reacting the monomeric or low condensation product with an appropriate alcohol. Halogenation is effected by treating the condensate or a solution or dispersion thereof with halogen or a halogen-yielding compound such as a hypochlorite, chloramine, dichloramine or dichlorodimethyl hydantoin, the preferable quantities being from 0.5 to 20 parts of halogenating agent per 100 parts of condensate.  A solution of the halogenated product is applied to textiles with the aid of wetting agents and may contain a catalyst for the subsequent in situ curing of the resin; wetting agents include long-chain sulphonated aromatic compounds, polyethylene oxides and derivatives thereof and polyether alcohols.  Catalysts include zinc and ammonium chlorides, diammonium hydrogen phosphate, oxalic, acetic and mineral acids and amino - alkyl alcohol phosphates.  In examples: (1) 4 mols. of formaldehyde is reacted with 1 mol. of melamine to give a low polymeric condensate which is spray dried, the solid being stirred with chlorine-saturated water containing a wetting agent and a catalyst.  Flannel is impregnated therewith, dried and cured at 300 DEG  F.; (2) and (3) chloramine T is used as halogenating agent for the condensate of (1), suiting and crepe fabric being impregnated with the product; (4) melamine, methyl alcohol and formaldehyde are reacted, the resulting water-soluble condensate being reacted with thiourea and formaldehyde, to give a monomeric or low polymeric product which is halogenated by chloramine T and used to impregnate a wool yarn; (5) a melamine-aldehyde condensate is alkylated by methyl alcohol, the product halogenated by chloramine T and used to impregnate wool jersey.ALSO:A monomeric or low polymeric aliphatic or heterocyclic amino compound-aldehyde condensation product is reacted with a halogenating agent which contains active halogen per se or which yields active halogen under the conditions of reaction until the condensation product contains active halogen, the product being used as a finishing agent for textiles to improve their dimensional stability, and their resistance to felting or creasing. Aminotriazine condensation products such as melamine-aldehyde; 2,4-diamino-6-hydroxy-S-triazine aldehyde; 2,4-diamino-6-chloro-S-triazine aldehyde; thiourea modified melamine aldehyde; melam aldehyde; urea-, thiourea-, dicyandiamide-, cyanamide-, and guanidine-aldehyde condensation products may be so reacted.  The condensation products may be alkylated as by reacting the monomeric or low condensation product with an appropriate alcohol.  Halogenation is effected by treating the condensate or a solution or dispersion thereof with halogen or a halogen-yielding compound such as a hypochlorite, chloramine, dichloramine or dichlorodimethyl hydantoin, the preferable quantities being from 0.5 to 20 parts of halogenating agent per 100 parts of condensate.  A solution of the halogenated product is applied to textiles with the aid of wetting agents and may contain a catalyst for the subsequent in situ curing of the resin; wetting agents include long chain sulphonated aromatic compounds, polyethylene oxides and derivatives thereof and polyether alcohols.  Catalysts include zinc and ammonium chlorides, diammonium hydrogen phosphate, oxalic, acetic and mineral acids and amino-alkyl alcohol phosphates.  In examples: (1) 4 mols. of formaldehyde are reacted with 1 mol. of melamine to give a low polymeric condensate which is spray dried, the solid being stirred with chlorine-saturated water containing a wetting agent and a catalyst.  Flannel is impregnated therewith dried and cured at 300 DEG  F.; (2) and (3) chloramine T is used as halogenating agent for the condensate of (1), suiting and crepe fabric being impregnated with the product; (4) melamine, methyl alcohol and formaldehyde are reacted, the resulting water-soluble condensate being reacted with thiourea and formaldehyde, to give a monomeric or low polymeric product which is halogenated by chlormine T and used to impregnate a wool yarn; (5) a melaminealdehyde condensate is alkylated by methyl alcohol, the product halogenated by chloramine T and used to impregnate wool jersey.ALSO:A monomeric or low polymeric aliphatic or heterocyclic amino compound-aldehyde condensation product is reacted with a halogenating agent which contains active halogen per se or which yields active halogen under the conditions of reaction until the condensation product contains active halogen, the product being used as a finishing agent for textiles to improve their dimensional stability, and their resistance to felting or creasing. Amino-trazine condensation products such as melamine-aldehyde; 2,4 - diamino - 6 - hydroxy - S - triazine aldehyde; 2,4 - diamino - 6 - chloro - S - triazine aldehyde; thiourea modified melamine aldehyde; melam aldehyde; urea-, thiourea-, dicyandiamide-, cyanamide-, and guanidine-aldehyde condensation products may be so reacted.  The condensation products may be alkylated as by reacting the monomeric or low condensation product with an appropriate alcohol. Halogenation is effected by treating the condensate or a solution or dispersion thereof with halogen or a halogen-yielding compound such as a hypochlorite, chloramine, dichloramine or dichlorodimethyl hydantoin, the preferable quantities being from 0.5 to 20 parts of halogenating agent per 100 parts of condensate.  A solution of the halogenated product is applied to textiles with the aid of wetting agents and may contain a catalyst for the subsequent in situ curing of the resin; wetting agents include long-chain sulphonated aromatic compounds, polyethylene oxides and derivatives thereof and polyether alcohols.  Catalysts include zinc and ammonium chlorides, diammonium hydrogen phosphate, oxalic, acetic and mineral acids and aminoalkyl alcohol phosphates.  In examples: (1) 4 mols. of formaldehyde is reacted with 1 mol. of melamine to give a low polymeric condensate which is spray-dried, the solid being stirred with chlorine-saturated water containing a wetting agent and a catalyst.  Flannel is impregnated therewith, dried and cured at 300 DEG  F.; (2) and (3) chloramine T is used as halogenating agent for the condensate of (1), suiting and crepe fabric being impregnated with the product; (4) melamine, methyl alcohol and formaldehyde are reacted, the resulting water-soluble condensate being reacted with thiourea and formaldehyde, to give a monomeric or low polymeric product which is halogenated by chloramine T and used to impregnate a wool yarn; (5) a melaminealdehyde condensate is alkylated by methyl alcohol, the product halogenated by chloramine T and used to impregnate wool jersey.