Hemp fiber is generally used in sacks, and the gap between fibers is large, which is easy to damage clothes by external friction. Moreover, the material of the sack is hard, which can not provide enough buffer and protection, and it is easy to cause the clothes to be squeezed, deformed or damaged. Bags have poor air permeability and cannot effectively prevent clothes from being damp and moldy. Especially in humid environment, moisture is easy to accumulate in sacks, which is unfavorable to the protection of clothes.

The fiber of the sack is easy to fall off, which will produce a lot of dust and easily attach to the clothes, which will affect the cleanliness of the clothes.