What does 打着 mean in 不能打着传统文化的旗号去否认简体字? In the following sentence:


  众所周知，简体字源于历史上人们自行简化的手书体，它是以繁体字为基础的，不能打着传统文化的旗号去否认简体字。


打着 means "hit the mark", according to Pleco. 百度词典 does not have the entry for the word.

I struggle to understand the meaning of 打着 in this context, which likely is either one of the following:


Unless you "hit" the flag of the traditional culture, you cannot veto the Simplified Chinese. (i.e. if you "hit" the flag, you could veto it; this is from 不能 and 否认, two negation words)
You cannot "hit" the flag of the traditional culture to veto the Simplified Chinese. (i.e. you cannot veto the Simplified Chinese by "hitting" the flag)
Or maybe another meaning?


I'm not sure if 打 or 打着 (is 打着 a word here or 打 + particle?) has the positive or negative connotation in this context to begin with... It is likely 比喻 in this context.
'打' in '打着旗号' means 'to display/ to hold up'
打着 means 'displaying/ holding up'
旗号 (flag/ banner) is a metaphor for 'claim; declaration'
More examples:
(打着)少林正宗的招牌 = (displaying/ holding up) signboard of authentic Shaolin
(打着)燈籠 = displaying/ holding up lantern
(打着)雨傘 = holding up umbrella
(打)手勢 = (display) gesture = to gesture

I'm not sure if 打 or 打着 (is 打着 a word here or 打 + particle?) has the positive or negative connotation in this context to begin with... It is likely 比喻 in this context.

打 is the verb, 着 is a particle that indicates 'on going' status of the verb. There's no positive or negative connotation on the verb 打 (displaying/ holding up) itself
打燈籠 and 打傘 are common terms that use '打' as 'to display/ to hold up'

&quot;不能打着传统文化的旗号去否认简体字&quot;
&quot;Should not holding up the banner of 'Traditional Culture' to dismiss simplified characters&quot;

Side note: &quot;和尚打傘: 無法無天&quot; - &quot;Monk holding up umbrella: no law (hair) no rule (sky)