Multiple records and determine if a combination if values exist and write this to a new column

I'm struggling with a problem.

An order can have multiple lines and accordingly a type (F=Footwear/N=Non-FTW,Mixed=Both) I need to determine if the order consists of which type and create a new column with this information.

ORDR                         | TYPE
-----------------------------------------
#31900440220151005215630000  | F
#31900440220151005215630000  | N
#31900440220151005215630000  | N
#31900440220151005215680000  | N
#31900440220151005215680000  | N
#31900440220151005215680000  | N
#31900440220151005215680000  | N
#31900440220151005215680000  | N
#31900440220151005215710000  | F
#31900440220151005215720000  | F
#31900440220151005215740000  | F

What I want to have is ultimately:

ORDR                         | TYPE  | New column
------------------------------------------------
#31900440220151005215630000  | F    |   Mixed
#31900440220151005215630000  | N    |   Mixed
#31900440220151005215630000  | N    |   Mixed
#31900440220151005215680000  | N    |   Non-FTW
#31900440220151005215680000  | N    |   Non-FTW
#31900440220151005215680000  | N    |   Non-FTW
#31900440220151005215680000  | N    |   Non-FTW
#31900440220151005215680000  | N    |   Non-FTW
#31900440220151005215710000  | F    |   FTW
#31900440220151005215720000  | F    |   FTW
#31900440220151005215740000  | F    |   FTW

I thought of partition over but currently i'm stuck.