6:53 PM PT -- Sources connected to Kim's makeup line tell us she consulted several veteran trademark attorneys when launching her KKW line to ensure there were no violations. Nevertheless, we're told her team is confident KKW Beauty in no way infringes on Weiss' KW brand ... nor do they feel the lines are similar.
Kim Kardashianhas no right to her own initials ... in the cosmetics world, anyway ... according to the Danish makeup artist who's now suing her.
If you're into makeup you probably know the name Kirsten Kjaer Weiss. She says she's a famous makeup artist, and her line of KW cosmetics and makeup services are hot sellers around the world. According to docs, obtained by TMZ, Kirsten says Kim K's cosmetics logo is confusing consumers. She says the problem is Kim's products bear the 'KKW' logo ... far too similar to Kirsten's 'KW.'
In the suit, Kirsten says Kim's infringement is "knowing, willing and deliberate" -- and it's intended to dupe customers and screw with Kirsten's bottom line.
The great Dane wants the court to immediately block Kim from using 'KKW,' and to award her all of Kim's sizeable profits, and to punish KK by making her pay damages.