| 摘要 |
- Marking of products based on glass fibres. - The process consists in coating, at least partially, at least one of the faces of the said substrate of a film of heat-meltable material and in producing, on the surface of the said film, matt impressions, at least by localised hot plastic flow of the said heat-meltable material. - Application to ribbon-like textile sheets used both as diffuser screens and/or attenuators of light. |
