The surface of the Soft Sanitary Pad is the part that directly contacts the skin, which determines your comfort when using it. In order to make this part soft and non-allergenic, non-woven fabrics or cotton and other materials are usually used.
Non-woven fabrics: This material is not formed by weaving or sewing like ordinary cloth, but by thermal bonding or chemical methods to tightly bond the fibers together. It is soft to the touch and has good breathability, allowing menstrual blood to quickly penetrate into the absorbent layer below.
Cotton: Some sanitary napkin brands use natural cotton on the surface, which is very gentle and does not irritate the skin, especially suitable for women with sensitive skin.
The absorbent core layer is the core of the sanitary napkin, which is responsible for absorbing menstrual blood and keeping it dry. In order to ensure the water absorption effect, this layer usually uses super absorbent resin (SAP) and natural fibers (such as wood pulp).
Super absorbent resin (SAP): This is the most important absorbent material for sanitary napkins. It is a synthetic material that can quickly absorb and lock liquid to prevent liquid leakage. It has a very strong water absorption capacity and can absorb liquid hundreds of times its own weight.
Wood pulp fiber: Some sanitary napkins also add wood pulp (fiber extracted from trees), which helps to enhance water absorption and is a natural material and is more environmentally friendly.
The isolation layer is usually located between the absorbent layer and the back layer. Its main function is to prevent the liquid in the absorbent layer from flowing back to the surface layer and keep it dry. This layer usually uses polyethylene film.
PE film: This PE film has good waterproof properties and can effectively prevent liquid from penetrating from the absorbent layer to ensure that the sanitary napkin will not leak sideways. At the same time, it also maintains a certain degree of breathability to prevent excessive moisture from accumulating in the sanitary napkin.
The back layer is the last layer of the sanitary napkin. It is responsible for fixing the sanitary napkin on the underwear and preventing leakage. The back layer is generally made of polyethylene film or non-woven fabric.
PE film: Most sanitary napkins use this PE film on the back layer, which can prevent liquid leakage while maintaining breathability and avoiding stuffiness.
Non-woven fabric: Some brands choose non-woven fabric materials for the back layer, which is softer than plastic film and can also maintain breathability, but has poor water absorption. It mainly plays the role of leak prevention and fixation.
In order to improve the user experience, some sanitary napkins will also add some additional materials to the surface or inner core to enhance comfort or other functions.
Fragrance: Some sanitary napkins add a slight fragrance to the surface to help cover up the odor that may be produced during menstruation and make you feel fresh.
Antimicrobial agents: To reduce bacterial growth, some sanitary napkins contain antimicrobial ingredients, which can reduce the risk of possible infection.
Natural plant extracts: Some high-end brands add natural plant extracts such as aloe vera and lavender to soothe the skin and reduce allergic reactions.
With the improvement of environmental awareness, many brands have begun to pay attention to the use of environmentally friendly materials, such as organic cotton and biodegradable plastics. These materials can reduce the impact on the environment, especially in the production and disposal of sanitary napkins.
Some brands have also launched reusable cloth sanitary napkins, which can be washed and reused repeatedly, reducing the waste of a large amount of disposable materials, and gradually become the choice of some environmentally conscious women.