| 摘要 |
A process of applying a yellowing resistant, durable antistatic soil release agent: <IMAGE> wherein X is resin moiety having amino nitrogens and 4 to 6 methylenes, each methylene being attached to amino nitrogen and to the extent that any methylene groups are not attached they are attached to a -OCH3 group. Y1, Y2 or Y3; Y1 is O(C2H4O)5-20R1; R1 is C1-5alkyl; Y2 is O(C2H4O)5-88R2; R2 is C6-20alkyl; Y3 is <IMAGE> R3 is C4-20alkyl, C4-20alkenyl or benzyl; R4 is C1-4alkyl, A(-) is anion, each of m and n is at least 1 and their sum is 12 to 100; each of a and b is 0 to 2 and their sum is 0 to 2; c is 1 to 2; a plus b plus c is 1 to 4; said agent having HLB of 14.5 to 18.0, Brookfield viscosity (20 weight % aqueous solution viscosity at 20 DEG C.) of 0.250 to 16.000 pascal seconds, electrical resistivity (Keithley Log R) on polyester fabric (20+/-2% RH, 23+/-1 DEG C.) less than 13.00 initially and 14.25 after 10 washes, and soil release (polyester fabric) at least 3 initially; which process comprises (a) diluting agent with water to desired viscosity, (b) adding ammonium or mono-, di- or trivalent metal salt to achieve cloud point less than 100 DEG C. but greater than 25 DEG C., or adding polyacidic compound having second dissociation constant greater than 1x10-8 to pH 3.0 to 6.0, or adding both, (c) adding from 0.07 to 0.8 wt % on weight of fabric of an anionic surfactant, (d) further diluting the agent to the desired concentration, (e) applying step (c) agent to substrate, and (f) drying curing and recovering treated substrate.
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