MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202641007130 A) filed by Gobi Kannan Tamilmani; and Subhasundari Palaniappan, Rasipuram, Tamil Nadu, on Jan. 24, for 'design and development of natural fibre based sanitary pad using wet-laid nonwoven fabrication technique and a method for manufacturing the same.'
Inventor(s) include Gobi Kannan Tamilmani; Gowri Devi V; Rithish A; Sendraya Perumal G; Shakthi Shree R; and Suryappa Jayappa Pawar.
The application for the patent was published on Feb. 6, under issue no. 06/2026.
According to the abstract released by the Intellectual Property India: "Sanitary pad is an important product for feminine hygiene use. It has been found that the pad produced from synthetic fibres and super absorbent polymers are commercially available and comparatively costlier one. Most of the commercially available products are not environmentally friendly. Thus, this invention focused on developing an eco-friendly sanitary pad using nonwoven fabrics made from natural fibres. The fibres of Banana, Areca, Milkweed, Cotton, and Viscose were selected based on their absorbent properties, which were confirmed through the Free Swell Absorptive Capacity Test. Taguchi's experimental design was used to optimize the blend ratio, fibre composition in each layer, and fibre weight for producing sanitary pads. The nonwoven webs were formed through a lab-scale wet-laid process. Two types of webs were made including absorbent core (Banana-Areca-Milkweed blends) retention core (Cotton-Viscose blends). Chitosan paste was used to coat the absorbent core surface for antimicrobial properties. Both the absorbent core and retention layer were produced with different weight ranges (25, 30, and 35 grams). The final sanitary pad was assembled by using the following four layers with thermal bonding or sealing viz. a PP top sheet, absorbent core, retention core, and a PE bottom sheet with wing stickers also added for easy usability. Performance of sanitary pad was analyzed by GSM, thickness, absorption time and capacity, pH level, and retention capacity. From the test results, it found that the blend of Banana, Areca, and Milkweed (45:45:10) absorbent core and Cotton-Viscose (50:50) retention layer with the fibre weight of 30 grams achieved a better outcome compared to other combinations. The results highlight the potential of using natural fibres and optimized structural design to create sustainable and high-performing sanitary products."
Disclaimer: Curated by HT Syndication.
