Process for dyeing closely constructed non-tufted textile materials and products produced thereby
US4231744A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1978 |
| Grant date | Nov 4, 1980 |
| Priority date | — |
| Expiry date | Jun 15, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P5/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved process for dyeing closely constructed non-tufted textile materials is provided wherein an effective minor amount of a substantially oil and water repellent fluoropolymer is applied to the textile material. The substantially oil and water repellent fluoropolymer employed can be represented schematically as ##STR1## The textile material can be, if desired, scoured with an aqueous surfactant solution to remove any residual dirt, oil or processing aids present on the textile material and thereafter scoured with an aqueous acidic solution to provide the textile materialwith an acidic pH prior to application of the fluoropolymer. Further, the back portion of the textile material can be backcoated with an elastomer composition. Once the textile material has been treated using any of the above processing steps, in combination with the application of the fluoropolymer, the resulting polymer-modified textile material is thoroughly dried and cured prior to dyeing. The application of the fluoropolymer to the textile material and its effect on the subsequent dyeing of the polymer modified textile material can further be enhanced by the use of a minor effective amount of a fluorosur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.