Method for creping a paper web and product produced thereby
US4992140A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1989 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Apr 6, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H25/005
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved method, and resulting product, for creping a web of papermaking fibers by adhering the web to a creping dryer and with a creping blade removing the web from the creping dryer which provides increased absorbency with less reduction in strength. The improvement comprises reducing the cohesive forces between the fibers to a greater extent than reducing the adhesive forces between the web and the creping dryer accomplished by applying a fluid at least primarily comprising water overall to the side of the web away from the creping dryer in sufficient quantity and at a position to accomplish the improved results. The method is particularly useful in the practice of wet creping wherein the web is creped from the creping dryer at a dryness of from 45% to 60%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.