Takemoto Yushi Kabushiki Kaisha

Makoto Minafuji

Tomohiro Kato

Yoshio Takasu

Shinji Sahara

Kuniyasu Inagaki

A low concentration aqueous solution of agent for processing synthetic fibers is produced by preparing acidic alkyl phosphate which is solid at room temperatures and gradually adding this prepared acidic alkyl phosphate with stirring to an aqueous solution containing potassium hydroxide in an amount for partially neutralizing this added acidic alkyl phosphate to obtain 0.1-10 weight % low concentration aqueous solution of agent for processing synthetic fibers containing potassium alkyl phosphate.

Method of producing low concentration aqueous solution of agent for processing synthetic fibers

A fluid-permeable agent for providing fluid-permeability to non-woven sheets of polyolefin fibers contains 50 wt % or more of polyoxyalkylene modified silicone shown by Formula (A) given below: ##STR1## where x is an integer in the range of 1-10, y is an integer in the range of 7-100, a is an integer equal to or greater than 5, b is an integer equal to or less than 95, (a+b) is an integer equal to or less than 100 and R.sup.1 is H or alkyl group with 1-12 carbon atoms. The agent may additionally contain surfactants of certain specified kinds and is applied at a rate of 0.1-0.5 wt % with respect to the fibers for good results.

Fluid-permeable agent for non-woven sheets of polyolefin fibers and

A fluid-permeable agent for providing fluid-permeability to non-woven sheets of polyolefin fibers contains 50 wt % or more of aliphatic diethanol amide shown by the formula: ##STR1## where R is alkyl or alkenyl group with 11-17 carbon atoms. The agent may additionally contain non-ionic surfactants and salt of certain specified kinds and is applied at a rate of 0.1-0.5 wt % with respect to the fibers for good results.

Fluid-permeable agent for non-woven sheets of polyolefin fibers

A fluid-permeable agent for providing fluid-permeability to non-woven sheets of polyolefin fibers contains 50-95 wt % of aliphatic diethanol amide shown by Formula (A) given below and 5-50 wt % of polyoxyalkylene modified silicone shown by Formula (B) given below: ##STR1## where R.sup.1 is alkyl or alkenyl group with 11-17 carbon atoms; and ##STR2## where x is an integer in the range of 1-10, y is an integer in the range of 7-100, a is an integer equal to or greater than 5, b is an integer equal to or less than 95, (a+b) is an integer equal to or less than 100 and R.sub.2 is H or alkyl group with 1-12 carbon atoms. The agent may additionally contain nonionic surfactants and salt of certain specified kinds and is applied at a rate of 0.1-5.0 wt % with respect to the fibers for good results.

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Aichi, Japan

Makoto Minafuji