The basic anatomy of a disposable sanitary pad comprises of an underlying layer, absorbent layer and a surface layer.
- The underlying layer is the back side of the napkin (adhesive or non-adhesive) that lies on the crotch of the panty.
- The middle layer also called the absorbent layer lies between the underlying layer and the surface layer. It is made of absorbent wood cellulose fibers. The absorbent panel consist polyacrylate gel which sucks up the liquid quickly, holds it in a suspension and prevents blood leakage.
- An additional top layer or the surface layer sits right against the skin. It is made of perforated plastic that keeps the skin dry and acts as a barrier between the skin and the absorbent panel.
Variations in disposable sanitary pads:
A few years back, pads were available with only one type of absorbency, length and thickness and women didn’t had too many options to look for. But thanks to the advancements, there are more options today and women can choose the one that suits her needs the best.
- Shape: The pad can be rectangular, slender or curved in shape to fit your body better.
- Size: The size ranges from short and slender panty liners to large and extra large ones to hold different level of blood flow.
- Panty liners: A panty liner is very thin with little absorbency. Panty liners may come with or without wings, tapered shape or rectangular shape and with or without fragrance. These are designed to absorb light menstrual blood flow, spotting and daily vaginal discharge.
- Ultra-thin: These are very thin pads with a normal length and a high absorbency, designed to offer more comfort and are not at all bulky.
- Regular: These are a middle range absorbency pad and are designed to be used during the day time.
- Maxi- super: These are larger absorbency pads and are useful when the menstrual flow is the heaviest.
- Night: These are little longer than the regular pads and are designed to offer more protection to the wearer when she is sleeping.
- Maternity: These are longer and more absorbent than the maxi pad and are designed to absorb the bleeding that occurs after child birth, abortion or vaginal surgery.
- Design: Some pads may feature extra features such as wings with adhesives that wrap around the sides of the panty and stick to help secure the pad in place and provide an additional side leak protection.
- Fragrance: Some pads come along with fragrance and deodorants added to them to cover the menstrual blood odor.