Printing the party emblem and flag on cultural shirts does not violate the regulations, but the random use of the party emblem and flag patterns violates relevant party regulations. If the merchant sells such "cultural shirts" mainly for commercial purposes, this will Violated the relevant provisions of the Advertising Law.
Extended information:
"Several Provisions on the Production and Use of the Flag and Emblem of the Communist Party of China"
Article 9. Damaged or defaced flags shall not be used , faded party flags or party emblems that do not meet production requirements.
Article 10. The party flag, emblem and its patterns shall not be used as trademarks or advertisements.
When printing the party emblem and flag pattern, you need to pay attention to the following two issues: First, the party emblem and flag pattern must be printed in strict accordance with the party emblem and flag pattern determined in the "Several Regulations on the Production and Use of the Flag and Emblem of the Communist Party of China" Production methods and pattern making. Second, the printed party emblem and flag pattern must be serious and solemn, and must not be used as trademarks or advertisements.
Central People's Government of the People's Republic of China-Flag of the Communist Party of China