firstly, your trademark can only be printed if it is a well-known trademark. secondly, according to the regulations, well-known trademarks cannot be used for container packaging and product promotion. Business cards don't advertise or have a single page, but they are one-to-one, not one-to-many advertisements. It is not illegal, but you'd better consult your local industrial and commercial bureau. If the industrial and commercial bureau finds that it is illegal, you will pay a fine in addition to litigation.