Pouched through the washer and dryer laundry additive product having at least one wall comprised of finely apertured polymeric film
US4839076A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1988 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Apr 7, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F58/203
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pouched through the washer and dryer laundry additive product having at least one of its walls constructed of finely apertured polymeric film. In a particularly preferred embodiment, both pouch walls are constructed of finely apertured polymeric film to permit substantially full dissolution and discharge of the washer additive contained in the pouch during the washing cycle, yet retain substantially all of the dryer additive until the product is transferred into an automatic clothes dryer along with the laundered textiles. Pouched through the washer and dryer laundry additive products of the present invention deliver a significantly greater quantity of dryer additive material onto the textiles being tumble dried when contrasted with comparably constructed pouches comprised entirely of nonwoven and/or paper material. Furthermore, pouched through the washer and dryer laundry additive products of the present invention accomplish the aforementioned objective without an accompanying increase in staining of the textiles by the dryer added materials. Subcombination dryer additive products which contain no washer additive, but which are capable of withstanding a wash cycle without advers…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.