1. a trademark is a distinctive symbol which is used by producers and operators of commodities on the commodities they produce, manufacture, process, select or distribute or by service providers to distinguish the sources of commodities or services, and consists of characters, graphics, letters, numbers, three-dimensional symbols, sounds and colors, or the combination of the above elements.

2. after the trademark is removed, others don't know the origin of the clothes, which affects the secondary sales.