Soil resistant yarn finish composition for synthetic organic polymer yarn

A spin finish for yarn, made from synthetic organic polymer, to be processed at high temperature into a yarn that is oil repellent and resistant to soiling, said spin finish comprising:

• a. about 5 to 25 percent by weight of said spin finish of a first noncontinuous phase consisting essentially of
• i. about 15 to 80 weight percent of a solution of a salt of dioctyl sulfosuccinate, propylene glycol and water, and
• ii. about 20 to 85 weight percent of a fluorochemical compound having the formula ##STR6## wherein the attachment of the fluorinated radicals and the radicals CO.sub.2 B to the nucleus is in asymmetrical positions with respect to rotation about the axis through the center of the nucleus;
• wherein "X" is fluorine, or perfluoroalkoxy of 1 to 6 carbon atoms, and m has arithmetic mean between 2 and 20;
• n is zero or unity;
• "W" and "Y" are alkylene, cycloalkylene or alkyleneoxy radicals of combined chain length from 2 to 20 atoms;
• (CF.sub.2).sub.m and "Y" have each at least 2 carbon atoms in the main chain;
• "Z" is oxygen and p is 1, or "Z" is nitrogen and p is 2;
• q is an integer of at least 2 but not greater than 5;
• "B" is CH.sub.2 RCHOH or is CH.sub.2 RCHOCH.sub.2 RCHOH where "R" is hydrogen or methyl, or "B" is CH.sub.2 CH(OH)CH.sub.2 Q where Q is halogen, hydroxy, or nitrile;
• or "B" is CH.sub.2 CH(OH)CH.sub.2 OCH.sub.2 CH(OH)CH.sub.2 Q;
• and r is an integer of at least 1 but not greater than q;
• and X(CF.sub.2).sub.m, W and Y are straight chains, branched chains or cyclic;
• and wherein the substituent chains of the above general formulas are the same or different;
• b. about 50 to 90 percent by weight of said spin finish of water;
• and
• c. about 5 to 25 percent by weight of said spin finish of a second noncontinuous phase which is capable of being emulsified with said first noncontinuous phase and said water without separation of any of the component parts of said spin finish.

A spin finish for yarn, made from synthetic organic polymer, to be processed at high temperature into a yarn that is oil repellent and resistant to soiling, said spin finish comprising:

• a. about 10 percent by weight of said spin finish of a first noncontinuous phase consisting essentially of:
• i. about 30 weight percent of a solution, said solution consisting essentially of about 70 percent by weight of sodium dioctyl sulfosuccinate, about 16 percent by weight of propylene glycol, and about 14 percent by weight of water, and
• ii. about 70 weight percent of a fluorochemical compound, said fluorochemical compound having the formula ##STR8## wherein the attachment of the fluorinated radicals and the radicals CO.sub.2 B to the nucleus is in asymmetrical positions with respect to rotation about the axis through the center of the nucleus;
• wherein "X" is fluorine, or perfluoroalkoxy of 1 to 6 carbon atoms, and m has arithmetic mean between 2 and 20;
• n is zero or unity;
• "W" and "Y" are alkylene, cycloalkylene or alkyleneoxy radicals of combined chain length from 2 to 20 atoms;
• (CF.sub.2).sub.m and "Y" have each at least 2 carbon atoms in the main chain;
• "Z" ix oxygen and p is 1, or "Z" is nitrogen and p is 2;
• q is an integer of at least 2 but not greater than 5;
• "B" is CH.sub.2 RCHOH or is CH.sub.2 RCHOCH.sub.2 RCHOH where "R" is hydrogen or methyl, or "B" is CH.sub.2 CH(OH)CH.sub.2 Q where Q is halogen, hydroxy, or nitrile;
• or "B" is CH.sub.2 CH(OH)CH.sub.2 OCH.sub.2 CH(OH)CH.sub.2 Q;
• and r is an integer of at least 1 but not greater than q;
• and X(CF.sub.2).sub.m, W and Y are straight chains, branched chains or cyclic;
• and wherein the substituent chains of the above general formulas are the same or different;
• b. about 80 percent by weight of said spin finish of water;
• and
• c. about 10 percent by weight of said spin finish of a second noncontinuous phase which is capable of being emulsified with said first noncontinuous phase and said water without separation of any of the component parts of said spin finish.