Quaternary-amino alcohol-functional, organosilicon compounds, comprising quaternary-amino alcohol-functional silanols and also quaternary-amino alcohol-functional siloxanol oligomers with Si-O-crosslinked structural elements, which form catenate, cyclic and/or crosslinked structures and which are obtainable from a reaction of at least one silane of the formulae II, IV or at least one hydrolysis, condensation or co-condensation product starting from silanes of the formula II and/or IV, water and at least one amino alcohol of the formula III and optionally the hydrolysis alcohol formed in this reaction is at least partly removed from the system, - where at least one structure of said quaternary-amino alcohol-functional, organosilicon compounds corresponds in idealized form to the general formula I, (R 1 O)[(R 1 O) 1-x-y (R 2)xSi(C +) 1+y O] a R 1 [a · (1+y)]Hal - where C + in formula I is independently a group of the formula V -(R 3) n CH 2 -N + [-(CH 2) m OH] z (R 4) 3-z, in formula I, R 1 independently at each occurrence is substantially hydrogen or a linear, branched or cyclic alkyl group having 1 to 8 C atoms, R 2 are identical or different and R 2 is a linear, branched or cyclic alkyl group having 1 to 8 C atoms or is an aryl, arylalkyl or acyl group, in formula V R 3 are identical or different and R 3 is a linear, branched or cyclic alkylene group having 1 to 18 C atoms, R 4 are identical or different and R 4 is a group comprising C1 to C16 atoms, in formulae I and V, independently, n is 0 or 1, m is an integer between 1 and 16 and z is 1 or 2 or 3, and Hal is chloro or bromo, and x is 0 or 1, y is 0 or 1 and (x + y) is 0 or 1, and a is greater than or equal to 1, - where the silane of the formula II is a haloalkylsilane, (R 1 O) 3-x-y (R 2) x Si[(R 3) n CH 2 Hal] 1+y, and the silane of the formula IV corresponds to a quaternary-amino alcohol-functional silane (R 1 0) 3-x-y (R 2) x Si[(R 3) n CH 2 -N + [-(CH 2) m OH] z (R 4) 3-z] 1+y · (1+y) [Hal-], and the amino alcohol corresponds to the formula III, [HO-(CH 2) m -] z N(R 4) 3-z, where in the formulae II, III and IV, independently groups R 1 are identical or different and R 1 is a hydrogen, a linear, branched or cyclic alkyl group having 1 to 8 C atoms, or an aryl, arylalkyl or acyl group, groups R 2 are identical or different and R 2 is a linear, branched or cyclic alkyl group having 1 to 8 C atoms or is an aryl, arylalkyl or acyl group, R 3, R 4, Hal and also n, m and z, independently of one another, are as defined above, and x is 0, 1 or 2, y is 0, 1 or 2 and (x + y) is 0, 1 or 2. - where at least one structure of said quaternary-amino alcohol-functional, organosilicon compounds corresponds in idealized form to the general formula I, (R 1 O)[(R 1 O) 1-x-y (R 2)xSi(C +) 1+y O] a R 1 [a · (1+y)]Hal - where C + in formula I is independently a group of the formula V -(R 3) n CH 2 -N + [-(CH 2) m OH] z (R 4) 3-z, in formula I, R 1 independently at each occurrence is substantially hydrogen or a linear, branched or cyclic alkyl group having 1 to 8 C atoms, R 2 are identical or different and R 2 is a linear, branched or cyclic alkyl group having 1 to 8 C atoms or is an aryl, arylalkyl or acyl group, in formula V R 3 are identical or different and R 3 is a linear, branched or cyclic alkylene group having 1 to 18 C atoms, R 4 are identical or different and R 4 is a group comprising C1 to C16 atoms, in formulae I and V, independently, n is 0 or 1, m is an integer between 1 and 16 and z is 1 or 2 or 3, and Hal is chloro or bromo, and x is 0 or 1, y is 0 or 1 and (x + y) is 0 or 1, and a is greater than or equal to 1, - where the silane of the formula II is a haloalkylsilane, (R 1 O) 3-x-y (R 2) x Si[(R 3) n CH 2 Hal] 1+y, and the silane of the formula IV corresponds to a quaternary-amino alcohol-functional silane (R 1 0) 3-x-y (R 2) x Si[(R 3) n CH 2 -N + [-(CH 2) m OH] z (R 4) 3-z] 1+y · (1+y) [Hal-], and the amino alcohol corresponds to the formula III, [HO-(CH 2) m -] z N(R 4) 3-z,