1. Trademark cutting: Some merchants may cut off the trademark and collar on clothes, which is called trademark cutting. This practice may be to imitate other brands, or it may be to reduce consumers' awareness and comparison of brands, thus increasing their sales.

2. Illegal counterfeiting: Some merchants may produce counterfeit cashmere coats, which may not have the original brand or label. This kind of behavior is illegal, and consumers should avoid buying these goods, so as not to cause economic losses and security risks.

3. Internal sales: Some merchants may sell cashmere coats as internal sales, rather than for the public. In this case, the goods may not have trademarks or labels.

In short, cashmere coats sold in Tik Tok did not receive labels, which may be due to trademark cutting, illegal counterfeiting or internal sales. Consumers should pay attention to buying regular brand goods to protect their rights and security.