| 摘要 |
A paste or adhesive used to attach wallpaper or other material to a substrate is provided with at least one colouring agent to make the paste or adhesive visible against the colour of the wallpaper or other material. For example, the colouring agent may comprise at least one pigment, ink, dye, or tinted material. In an embodiment, a water soluble dye may be applied to the paste or adhesive in a small enough quantity so that the dye does not significantly impede the adhesive quality of the paste or adhesive. In another embodiment, colouring agents of different colours may be designed for use with material in specific colours, so that the colouring agents contrast to a high degree with the colour of the material. For example, a yellow colouring agent may be added to a paste or adhesive for use with wallpaper the back of which is dark blue. |
