Agent for treating textile, method for treating textile and treated textile

A method for treating a textile which comprises immersing the textile into a solution which contains a treatment agent, and then treating the textile with a fluorine-containing water- and oil-repellent,

• wherein said treatment agent comprises a combination of a modifying agent and a fixing agent,
• wherein the modifying agent is a fluorine-containing phosphoric acid derivative represented by the formula ##STR15## or a salt thereof, wherein R.sup.1 and R.sup.2 are the same or different, and are each a hydrogen atom or R.sub.f --(CH.sub.2)m--, wherein R.sub.f is a saturated or unsaturated, linear or branched fluorine-containing aliphatic group having 4 to 20 carbon atoms which is unsubstituted or is substituted with a substituent selected from the group consisting of an oxygen atom, a nitrogen atom, a sulfonyl group, an aromatic ring and combinations thereof, wherein said substituent is bonded to one or more carbon atoms of said aliphatic group;
• m is 1 or 2;
• and R.sup.1 and R.sup.2 each is not simultaneously a hydrogen atom;
• A is an oxygen atom, a sulfur atom or a direct bond;
• and n is 1 or 2;
• and wherein said modifying agent has a molecular weight of not larger than 2,000, and
• the fixing agent is a metal salt compound that is at least one selected from the group consisting of chlorides, nitrate salts, sulfate salts and hydroxides of chromium, zirconium, titanium and aluminum.

A method for treating a carpet, which comprises treating a carpet by immersing the carpet into a solution which contains having a diameter not larger than 1 denier,

• wherein the modifying agent is a fluorine-containing phosphoric acid derivative represented by the formula ##STR16## or a salt thereof, wherein R.sup.1 and R.sup.2 are the same or different, and are each a hydrogen atom or R.sub.f --(CH.sub.2)m--, wherein R.sub.f is a saturated or unsaturated, linear or branched fluorine-containing aliphatic group having 4 to 20 carbon atoms which is unsubstituted or is substituted with a substituent selected from the group consisting of an oxygen atom a nitrogen atom, a sulfonyl group, an aromatic ring and combinations thereof, wherein said substituent is bonded to one or more carbon atoms of said aliphatic group;
• m is 1 or 2;
• and R.sup.1 and R.sup.2 each is not simultaneously a hydrogen atom;
• A is an oxygen atom, a sulfur atom or a direct bond;
• and n is 1 or 2;
• and wherein said modifying agent has a molecular weight of not larger than 2,000, and
• the fixing agent is a metal compound that is at least one selected from the group consisting of chlorides, nitrate salts, sulfate salts and hydroxides of chromium, zirconium, titanium and aluminum.