Photographic element with optical brighteners having reduced migration

DETAILED DESCRIPTION We claim: 1.
A photographic element comprising a paper support, and on at least one side thereof a polyolefin coating containing an inclusion compound of an optical brightener and an .
alpha.
, .
beta.
, or .
gamma.
cyclodextrin.
2.
The photographic element of claim 1 wherein said cyclodextrin is a .
beta.
cyclodextrin.
3.
The photographic element of claim 1 wherein said cyclodextrin is a .
beta.
cyclodextrin having a substituent bonded to an oxygen atom in a glucose unit in said cyclodextrin, said substituent being selected from the class consisting of: a) alkyl radicals having 1 to 6 carbon atoms, b) radicals having the formula --(--CH--CH--R.
sup.
1 --O--).
sub.
n --H wherein R.
sup.
1 is selected from hydrogen and alkyl radicals having up to about six carbon atoms, and n is equal to a small whole number up to six, and c) radicals having the formula --CHR.
sup.
1 --CHOH--CHR.
sup.
1 -- wherein R.
sup.
1 has the same definition as above, such that said radicals bridge two cyclodextrin rings, and the number of said rings so bridged per molecule is from two to about six; said substituted cyclodextrin having not more than two substituents per glucose unit.
4.
A photographic element according to claim 3 wherein said cyclodextrin is a .
beta.
-cyclodextrin.
5.
A photographic element according to claim 4 wherein said substituent is an alkyl radical having 1 to six carbon atoms.
6.
A photographic element according to claim 5 wherein the average number of alkyl radicals per glucose unit is in the range of from about one to about two.
7.
A photographic element of claim 6 wherein said alkyl radical is a methyl group.
8.
A photographic element according to claim 4 wherein the cyclodextrin has a substituent selected from radicals having said formula --(--CH--CHR.
sup.
1 --O--).
sub.
n --H 9.
A photographic element according to claim 8 wherein the average number of substituents per glucose unit is in the range of from 1 to about 2.
0.
10.
A photographic element according to claim 9 wherein said substituent is 2-hydroxypropyl