Fiber treating composition

Abstract

The invention provides a fiber treating composition comprising an oil-in-water emulsion prepared by adding (c) water to a mixed solution (A) having a component (a) /component (b) in a ratio of 1/150 to 30/100 by weight under stirring and then emulsifying the mixture, wherein the component (a) is a polymer compound containing a constituent unit (a1) containing 2 to 20 carbon atoms in total and having one or more groups selected from a hydroxy group, a carboxylic acid group, a quaternary ammonium group, an amino group and an amide group (provided that a unit constituting (a2) is excluded) and a constituent unit (a2) having a C8 to C22 hydrocarbon group, wherein the molar ratio of (a1)/(a2) is 100/30 to 1000/1, and the component (b) is a hydrophobic component capable of being dissolved in an amount of 1% by weight at the maximum in 100 g of water at 20° C. and having a saturated vapor pressure of 1.45 kPa (11 mmHg) or less at 20° C. and 0.1 MPa (1 atm).

1 . A fiber treating composition comprising an oil-in-water emulsion prepared by adding (c) water to a mixed solution (A) comprising (a) a polymer compound comprising a constituent unit (a1) having 2 to 20 carbon atoms in total and having at least one selected from the group consisting of a hydroxy group, a carboxylic acid group, a quaternary ammonium group, an amino group and an amide group, provided that a unit constituting (a2) is excluded, and a constituent unit (a2) having a C8 to C22 hydrocarbon group at a molar ratio of (a1)/(a2) of 100/30 to 1000/1, and (b) a hydrophobic compound capable of being dissolved in an amount of 1% by weight at the maximum in 100 g of water at 20° C., having a melting point of 70° C. or lower and having a saturated vapor pressure of 1.45 kPa (11 mmHg) or less at 20° C. and 0.1 MPa (1 atm) at a weight ratio of component (a) /component (b) of 1/150 to 30/100, while stirring, to emulsify the mixture.  
   
   
       2 . A fiber treating composition comprising an oil-in-water emulsion prepared by adding (c) water to a mixed solution (A) comprising (a) a polymer compound comprising a constituent unit (a1) having 2 to 20 carbon atoms in total and having at least one selected from the group consisting of a hydroxy group, a carboxylic acid group, a quaternary ammonium group, an amino group and an amide group, provided that a unit constituting (a2) is excluded, and a constituent unit (a2) having a C8 to C22 hydrocarbon group at a molar ratio of (a1)/(a2) of 100/30 to 1000/1, and (b) a silicone compound at a weight ratio of component (a)/component (b) of 1/150 to 30/100, while stirring, to emulsify the mixture.  
   
   
       3 . The composition according to  claim 1 , wherein the component (b) is at least one compound selected from the group consisting of a C10 to C18 saturated or unsaturated fatty acid, a fatty ester having a molecular weight of 300 to 3000, a C10 to C18 saturated or unsaturated fatty alcohol, and ceramide.  
   
   
       4 . The composition according to  claim 1  or  2 , wherein the mixed solution (A) further comprises a water-soluble solvent (e).  
   
   
       5 . The composition according to  claim 1  or  2 , wherein the component (a) is at least one selected from the following (i) and (ii): 
 (i) a polymer compound comprising a monomer unit (a1-1) represented by the formula (1) and a monomer unit (a2-1) represented by the formula (2) at a molar ratio of (a1-1)/(a2-1) of 100/30 to 150/1 at a ratio of the total monomer units (a1-1) and (a2-1) to the total monomer units in the molecule being 50 to 100 mol %,                          wherein each of R 1a  and R 2a  is independently a hydrogen atom or a C1 to C3 alkyl group, each of R 1b  and R 2b  is a group selected independently from a hydrogen atom or —COOM 1  whereupon M 1  represents a hydrogen atom, an alkali metal atom or an alkaline earth metal atom, each of R 1c  and R 2c  is a group selected independently from a hydrogen atom, a C1 to C3 alkyl group and a hydroxyl group, R 2d  is a C8 to C22 hydrocarbon group, A is —COOM 2 , —OH, —CON(R 1d )(R 1e ), —COO—R 1f —N + (R 1g )(R 1h )(R 1i ).X − , —COO—R 1f —N(R 1g )(R 1h ), —CON(R 1d )—R 1f —N + (R 1g )(R 1h )(R 1i ).X − , —CON(R 1d )—R 1f —N(R 1g )(R 1h ), or a heterocyclic group of 5- or 6-membered cyclic structure having at least one amino group or amide group in the cycle, M 2  represents a hydrogen atom, an alkali metal atom or an alkaline earth metal atom, R 1d , R 1e , R 1g , R 1h  and R 1i  independently represent a hydrogen atom, a C1 to C3 alkyl group or a C1 to C3 hydroxyalkyl group, R 1f  represents a C1 to C5 alkylene group, X −  represents an organic or inorganic anionic group, B is a group selected from —O—, —COO—, —OCO— and —CONR 2e — whereupon R 2e  is a hydrogen atom, a C1 to C3 alkyl group or a C1 to C3 hydroxyalkyl group, D is at least one group, for connecting between B and R 2d , selected from a C2 to C6 divalent hydrocarbon group, a polyoxyalkylene group having an polyoxyalkylene group with 1 to 300 oxalkylene groups on the average attached and a polyglyceryl group with 1 to 10 glyceryl groups on the average attached, D being bound to R 2d  via a group selected from an ether group, an ester group, a cationic group and an amide group, and a is a number of 0 or 1; and    (ii) a polysaccharide derivative having (a1-2) a monosaccharide unit, or a hydroxyalkylated (C1 to C3), carboxyalkylated (C1 to C3) or cationized monosaccharide unit, and (a2-2)a monosaccharide unit having a monosaccharide unit or a hydroxyalkylated (C1 to C3), carboxyalkylated (C1 to C3) or cationized monosaccharide unit wherein a part or the whole of hydrogen atoms in hydroxyl groups are replaced by the formula (3), at a molar ratio of (a1-2)/(a2-2) of 1000/100 to 1000/1,      —R 3a —(OR 3b ) b -E-R 3c    (3)    wherein R 3a  represents a C1 to C6 linear or branched divalent saturated hydrocarbon group which may be substituted with a hydroxy group or an oxo group, R 3b  represents a C1 to C6 linear or branched divalent saturated hydrocarbon group which may be substituted with a hydroxy group or an oxo group, b is a number of 8 to 300, and R 3b S whose number is b may be the same or different, E represents a group selected from —O—, —COO— and —OCO—, and R 3c  represents a C8 to C22 linear or branched hydrocarbon group which may be substituted with a hydroxy group.    
   
   
       6 . The composition according to  claim 1  or  2 , which comprises 0.01 to 10 wt % component (a), 0.1 to 50 wt % component (b) and 40 to 95 wt % water (c), wherein the ratio of the component (a)/component (b) is 1/300 to 10/1.  
   
   
       7 . The composition according to  claim 1  or  2 , which comprises capsulated particles having a particle diameter of 0.1 to 50 μm with the component (a) as shell including the component (b).  
   
   
       8 . A method of treating fibers, comprising applying the composition of  claim 1  or  2  onto a fiber product.