The most intuitive feeling is of course the packaging. Don't care, it's not strong or not, you can see it at a glance. A good sanitary napkin is never embarrassing to hold in the hand, and it will make people feel that it is a high-end paper towel.
The difference between sanitation and sanitation must be more expensive for disinfection and sealing. There is also the amount of blood sucked. A good sanitary napkin can suck a lot of blood without deforming, but a bad one can't.