Three dimensional image formation process
US5404807A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1993 |
| Grant date | Apr 11, 1995 |
| Priority date | — |
| Expiry date | Jun 2, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M3/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A three-dimensional image formation process and an image separating agent used therefor are provided. The process comprises the steps of passing a flowable image forming material through a perforated stencil sheet having a perforated image from one surface to the other to form a three-dimensional image consisting of a flowable image forming material (ex. silicone resin) corresponding to the perforated image of the stencil sheet on the other surface; pushing out an image separating agent (ex. CaCO.sub.3 paste) from the stencil sheet side to the three-dimensional image side to form a separation layer between the three-dimensional image and the stencil sheet; hardening the three-dimensional image in this condition; and separating the three-dimensional image from the stencil sheet. The above image separating agent contains a fine particulate thixotropic agent (ex. CaCO.sub.3) as a main component, and has one minute spread value SP of the following formula: EQU SP.ltoreq.26+0.2X EQU 20.ltoreq.X.ltoreq.70 wherein X is the weight percent of the fine particulate thixotropic agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.