Production method for under pants-type disposable diaper and under pants-type disposable diaper capable of being produced by said production method
US10561540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2015 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | May 15, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1051
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a production method for an underpants-type disposable diaper in space-saving and simple facilities while reducing the risk of occurrence of wrinkles, including: supplying a continuous sheet material in the continuous direction thereof; disposing resilient and elastic members for imparting elasticity to a ventral side outer body and a dorsal side outer body at a CD direction intermediate portion of the sheet material; folding CD direction one side and other side parts across the CD direction intermediate portion toward the side of the CD direction intermediate portion with the resilient and elastic members, sandwiching and fixing the resilient and elastic members in the folded sheet material, and joining together the folded parts and the CD direction intermediate portion to form a continuous elastic belt; cutting the elastic belt at a CD direction intermediate position to obtain a dorsal side elastic belt and a ventral side elastic belt, and then assembling an inner body to the dorsal side elastic belt and the ventral side elastic belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.