The present invention relates to a fiber treatment agent for electron beam fixing that contains an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule, as represented by the following general formula (I).
M.sub.aM.sup.A.sub.bD.sub.cD.sup.A.sub.dT.sub.e  (I) (in the general formula (I), M=R.sup.1R.sup.2R.sup.3SiO.sub.1/2, M.sup.A=R.sup.4R.sup.5R.sup.6SiO.sub.1/2, D=R.sup.7R.sup.8SiO.sub.2/2, D.sup.A=R.sup.9R.sup.10SiO.sub.2/2, T=R.sup.11SiO.sub.3/2, R.sup.1 to R.sup.11 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a phenyl group, R.sup.4 and R.sup.9 each independently represent a monovalent hydrocarbon group represented by the following general formula (II), a, to d each independently are 0 or a positive integer, e is an integer of 0 to 3, c+d is an integer of 10 to 1000, b+d is an integer of at least 2, and a+b is an integer equal to e+2.) ##STR00001## (in the general formula (II), n is an integer of 1 to 3).

The present invention relates to a fiber treatment agent for electron beam fixing that contains an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule, as represented by the following general formula (I).
M.sub.aM.sup.A.sub.bD.sub.cD.sup.A.sub.dT.sub.e  (I) (in the general formula (I), M=R.sup.1R.sup.2R.sup.3SiO.sub.1/2, M.sup.A=R.sup.4R.sup.5R.sup.6SiO.sub.1/2, D=R.sup.7R.sup.8SiO.sub.2/2, D.sup.A=R.sup.9R.sup.10SiO.sub.2/2, T=R.sup.11SiO.sub.3/2, R.sup.1 to R.sup.11 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a phenyl group, R.sup.4 and R.sup.9 each independently represent a monovalent hydrocarbon group represented by the following general formula (II), a, to d each independently are 0 or a positive integer, e is an integer of 0 to 3, c+d is an integer of 10 to 1000, b+d is an integer of at least 2, and a+b is an integer equal to e+2.) ##STR00001## (in the general formula (II), n is an integer of 1 to 3).

Functional agent-containing fibers according to an embodiment of the present invention, wherein a functional agent is supported by silicone fixed to the fibers. The silicone includes an acrylic-modified organopolysiloxane having two or more acrylic groups per molecule. A rate of decrease in the functional agent after the functional agent-containing fibers are washed 10 times is less than 40%. In the present invention, the functional agent-containing fibers may be produced, e.g., by irradiating fibers impregnated with a fiber treatment agent A containing silicone with an electron beam so that the silicone is fixed to the fibers, and impregnating the fibers to which the silicone has been fixed with a fiber treatment agent B containing a functional agent. The functional agent-containing fibers may be produced, e.g., by impregnating fibers with a fiber treatment agent C containing silicone and a functional agent and irradiating the fibers impregnated with the fiber treatment agent C with an electron beam so that the silicone is fixed to the fibers and the functional agent is supported by the silicone fixed to the fibers. Thus, functional agent-containing fibers having improved washing resistance and a method for producing the fibers are provided.

In one embodiment, the present invention relates to silicone-fixed fibers including fibers and silicone fixed to the fibers. The silicone includes an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule. A rate of decrease in the amount of Si after the silicone-fixed fibers are washed 10 times is less than 50%. The present invention relates to a method for producing silicone-fixed fibers. The method includes coating or impregnating the fibers with a fiber treatment agent containing silicone, and irradiating the fibers coated or impregnated with the fiber treatment agent with an electron beam so that the silicone is fixed to the fibers. The silicone includes an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule. Thus, the present invention provides silicone-fixed fibers that include fibers to which silicone is fixed by electron beam irradiation and have a good texture even after washing, and a method for producing the silicone-fixed fibers.

In one embodiment, the present invention relates to silicone-fixed fibers including fibers and silicone fixed to the fibers. The silicone includes an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule. A rate of decrease in the amount of Si after the silicone-fixed fibers are washed 10 times is less than 50%. The present invention relates to a method for producing silicone-fixed fibers. The method includes coating or impregnating the fibers with a fiber treatment agent containing silicone, and irradiating the fibers coated or impregnated with the fiber treatment agent with an electron beam so that the silicone is fixed to the fibers. The silicone includes an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule. Thus, the present invention provides silicone-fixed fibers that include fibers to which silicone is fixed by electron beam irradiation and have a good texture even after washing, and a method for producing the silicone-fixed fibers.

The present invention relates to a fiber treatment agent for electron beam fixing that contains an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule, as represented by the following general formula (I).

M.sub.aM.sup.A.sub.bD.sub.cD.sup.A.sub.dT.sub.e(I) (in the general formula (I), M=R.sup.1R.sup.2R.sup.3SiO.sub.1/2, M.sup.A=R.sup.4R.sup.5R.sup.6SiO.sub.1/2, D=R.sup.7R.sup.8SiO.sub.2/2, D.sup.A=R.sup.9R.sup.10SiO.sub.2/2, T=R.sup.11SiO.sub.3/2, R.sup.1 to R.sup.11 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a phenyl group, R.sup.4 and R.sup.9 each independently represent a monovalent hydrocarbon group represented by the following general formula (II), a, to d each independently are 0 or a positive integer, e is an integer of 0 to 3, c+d is an integer of 10 to 1000, b+d is an integer of at least 2, and a+b is an integer equal to e+2.)

##STR00001## (in the general formula (II), n is an integer of 1 to 3.)

The present invention relates to a fiber treatment agent for electron beam fixing that contains an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule, as represented by the following general formula (I).

M.sub.aM.sup.A.sub.bD.sub.cD.sup.A.sub.dT.sub.e(I) (in the general formula (I), M=R.sup.1R.sup.2R.sup.3SiO.sub.1/2, M.sup.A=R.sup.4R.sup.5R.sup.6SiO.sub.1/2, D=R.sup.7R.sup.8SiO.sub.2/2, D.sup.A=R.sup.9R.sup.10SiO.sub.2/2, T=R.sup.11SiO.sub.3/2, R.sup.1 to R.sup.11 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a phenyl group, R.sup.4 and R.sup.9 each independently represent a monovalent hydrocarbon group represented by the following general formula (II), a, to d each independently are 0 or a positive integer, e is an integer of 0 to 3, c+d is an integer of 10 to 1000, b+d is an integer of at least 2, and a+b is an integer equal to e+2.)

##STR00001## (in the general formula (II), n is an integer of 1 to 3.)