The use of compositions for hydrophilic treatment of fibrous substrates that is washfast in terms of softness containing derivatives of amino-functional organopolysiloxanes containing
- siloxane units of general formula (I)
- R
- a
-
- Z
- b
-
- SiO
- 4
- -
- (
- a
- +
- b
- )
- 2
- ,
- (
- I
- )
- wherein
- a is 0, 1 or 2,
- b is 1, 2 or 3,
- with the proviso that the sum of a+b≤3,
- optionally siloxane units of general formula (II)
- R
- c
-
- Q
- d
-
- SiO
- 4
- -
- (
- c
- +
- d
- )
- 2
- ,
- (
- II
- )
- wherein
- c is 0, 1 or 2,
- d is 1, 2 or 3,
- with the proviso that the sum of c+d≤3,
- siloxane units of general formula (III)
- R
- e
-
- SiO
- 4
- -
- e
- 2
- ,
- (
- III
- )
- wherein
- e is 0, 1, 2, or 3,
- and siloxane units of general formula (IV)
- Y
- f
-
- R
- g
-
- SiO
- 4
- -
- (
- f
- +
- g
- )
- 2
- ,
- (
- IV
- )
- wherein
- f is 1, 2 or 3,
- g is 0, 1 or 2,
- with the proviso that the sum of f+g≤3,
- R may be identical or different and represents a hydrogen atom or a monovalent, optionally fluorine-, chlorine- or bromine-substituted, C1- to C18-hydrocarbon radical,
- Z represents a group of general formula (V)
- —R2—[NR3(CH2)n]iNR4R5 (V),
- wherein
- i is 0, 1, 2, 3 or 4,
- n is 2, 3, 4, 5 or 6,
- R2 represents a divalent, linear or branched C1- to C18-hydrocarbon radical,
- R3 represents a hydrogen atom, an optionally fluorine-, chlorine-, bromine-, hydroxy- or
- C1- to C5-alkoxy-substituted C1- to C18-hydrocarbon radical, or an acyl radical or a radical of general formula (VI),
- R4 represents a radical of general formula (VI),
- —(C═O)—R6—OH (VI),
- R5 represents a hydrogen atom or an optionally fluorine-, chlorine-, bromine-, hydroxy- or
- C1- to C5-alkoxy-substituted C1- to C18-hydrocarbon radical or an acyl radical,
- R6 represents a divalent, linear or branched C2- to C8-hydrocarbon radical or an —OR7-radical,
- R7 represents a divalent linear or branched C2- to C8-hydrocarbon radical,
- Q represents a group of general formula (VII)
- —R2—[NR9(CH2)n]iN(R9)2 (VII),
- wherein i and n are as defined above,
- R9 may be identical or different and represents a hydrogen atom, an optionally fluorine-, chlorine-, bromine-, hydroxy- or C1-to C5-alkoxy-substituted C1- to C18-hydrocarbon radical or an acyl radical,
- Y represents a radical of general formula (VIII) and/or (IX),
- —OR1(VIII) and/or —[O(CHR10)p]mOR11 (IX),
- wherein
- m is 0 or an integer from 1 to 100, preferably 1 to 20, and
- p is 2, 3 or 4,
- R1 represents a hydrogen atom or a C1- to C4-alkyl radical,
- R10 represents a hydrogen atom or a C1- to C8-hydrocarbon radical,
- R11 represents a hydrogen atom, a C1- to C10-hydrocarbon radical, preferably a C4- to C10-hydrocarbon radical,
- or a group of formula —(C═O)—R12,
- R12 represents a C1- to C10-hydrocarbon radical or an —OR13-radical, and
- R13 represents a c1- to C10-hydrocarbon radical,
- with the proviso that at least a portion of the radicals Y are radicals of formula (IX),
- with the proviso that impurities of octamethylcyclotetrasiloxane (D4 cyclics), decamethylcyclopentasiloxane (D5 cyclics) and dodecamethylcyclohexasiloxane (D6 cyclics) are present in proportions of less than 0.1% by weight in each case and after a storage time of 20 days at a temperature of 50° C. the proportions of D4 cyclics, representative of D4, D5 and D6, remain below 0.1% by weight in each case, based in each case on the total weight of the derivatives of amino-functional organopolysiloxanes.