
Naphtha Shock Hits Natto, Diapers, and Toilet Paper as Government Says 'We Have Enough'
Okame Natto, Kao's Attack detergent, Unicharm and Daio Paper diapers, plus toilet paper all announced summer-2026 price increases tied to naphtha-driven raw-material costs. Combined with TV Asahi reportedly airing a 'black-and-white' naphtha-shock segment, the public mood swung hard against the government's 'we have enough' messaging, with users calling it a permanent excuse to push prices up.




