Legal analysis: Generally speaking, it is not illegal to buy and sell meltblown fabrics as long as the relevant provisions of the law are observed. However, it is illegal to drive up prices, raise prices at will and disrupt market order. Producing and selling meltblown fabrics, driving up prices and profiteering may constitute the crime of illegal business operation.

Legal basis: Article 225 of the Criminal Law of People's Republic of China (PRC) refers to the crime of violating state regulations and committing one of the following illegal business operations:

(a) without permission, dealing in franchise, monopoly goods or other commodities with restricted trading as stipulated by laws and administrative regulations;

(2) buying and selling import and export licenses, import and export certificates of origin and other business licenses or approval documents stipulated by laws and administrative regulations;

(three) without the approval of the relevant competent departments of the state, illegally engaged in securities, futures, insurance business or illegally engaged in fund settlement business;

(four) engaged in other illegal business activities, disrupting the market order, and the circumstances are serious.