By law there are a number of details (such as the wash instructions), that must be included inside your products. If removing all manufacture labelling, please ensure you include these details on your own printed or woven labels. We cannot be held responsible if you fail to meet the legal requirements with your labelling.
You can see more information on the legal requirements via the UK Fashion and Textile Association here.
Please note, relabelling requirements vary from country to country; we advise doing your own independent research into the labelling requirements of the countries you intend to sell to.