Coated recording sheets for water resistant images.

摘要

A recording sheet which comprises a substrate and a coating consisting essentially of (1) quaternary ammonium polymers selected from the group consisting of (a) polymers of Formula I wherein n is an integer of from 1 to about 200, R1, R2, R3, and R4 are each independently selected from the group consisting of alkyl groups, hydroxyalkyl groups, and polyoxyalkylene groups, p is an integer of from 1 to about 10, q is an integer of from 1 to about 10, X is an anion, and Y1 is selected from the group consisting of -CH2CH2OCH2CH2-, -CH2CH2OCH2CH2OCH2CH2-, -(CH2)k-, wherein k is an integer of from about 2 to about 10, and -CH2CH(OH)CH2-; (b) polymers of Formula II wherein wherein n is an integer of from 1 to about 200, R5, R6, R7, and R8 are each independently selected from the group consisting of alkyl groups, hydroxyalkyl groups, and polyoxyalkylene groups, m is an integer of from 0 to about 40, r is an integer of from 1 to about 10, s is an integer of from 1 to about 10, X is an anion, and Y2 is selected from the group consisting of -CH2CH2OCH2CH2-, -CH2CH2OCH2CH2OCH2CH2-, -(CH2)k-, wherein k is an integer of from about 2 to about 10, and -CH2CH(OH)CH2-; (c) copolymers of Formula III wherein a and b are each integers wherein the sum of a + b is from about 2 to about 200, R1, R2, R3, R4, R5, R6, R7, and R8 are each independently selected from the group consisting of alkyl groups, hydroxyalkyl groups, and polyoxyalkylene groups, p is an integer of from 1 to about 10, q is an integer of from 1 to about 10, X is an anion, and Y1 and Y2 are each independently selected from the group consisting of -CH2CH2OCH2CH2-, -CH2CH2OCH2CH2OCH2CH2-, -(CH2)k-, wherein k is an integer of from about 2 to about 10, and -CH2CH(OH)CH2-; (d) mixtures of polymers of Formula I and polymers of Formula II; (e) mixtures of polymers of Formula I and copolymers of Formula III; (f) mixtures of polymers of Formula II and copolymers of Formula III; and (g) mixture of polymers of Formula I, polymers of Formula II, and copolymers of Formula III; (2) an optional binder polymer; and (3) an optional filler.