Vacuum assisted tuft dye printing process
US4165547A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1978 |
| Grant date | Aug 28, 1979 |
| Priority date | — |
| Expiry date | Jun 21, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B15/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved process for dyeing carpet by intermittently moving the carpet along a path having horizontal and vertical portions. The horizontal portion of the path is immersed in a print form having compartments separated by thin walls and filled with liquid dyes of varying colors, to impart a desired pattern to the fabric. After the horizontal portion of the fabric is withdrawn from the print form, the fabric is moved along its path so that the immersed portion is moved along the vertical portion of the path. A vacuum slot along the vertical portion of the path adjacent the horizontal portion is activated only while the carpet is in motion, and serves to draw the dye toward the backing of the carpet while removing excess dye therefrom. Thereafter the carpet is steamed to set the dyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.