Apparatus for applying adhesive to stretchable members and stretchable composite sheet
US11253404B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2017 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Nov 4, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/49025
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A stretchable composite sheet, wherein pleat-free regions where no pleats are formed are formed between a plurality of pleat formation regions, the sheet being made by a method, wherein non-continuous coating sections are set so as to correspond to form the plurality of pleat formation regions, and non-coating sections are set so as to correspond to form the pleat-free regions, and an intermittent coating is performed on stretchable elastic members (rubber threads). An apparatus for non-continuously and intermittently applying a hot-melt adhesive comprises an intermittent coating unit, which includes a hot-melt supply control device having a valve mechanism and a coating head having slit grooves in which coating areas are formed, and a non-continuous coating unit, which vertically vibrates rubber threads, passing through the coating areas, between a coating position and a non-coating position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.