1. 90% of the clothing lines out there use screen printing to produce their t-shirts.
2. learning to print, and the process of printing will be similar, but business planning will be very different
when constructing a business plan for a line you must consider the following: competitive analysis, product design and development, market strategies, strategic branding, management plans, financial components, SEO and web development(if you plan to sell online), wholesale marketing (if you plan on selling wholesale)