| 摘要 |
The present invention provides a process for marking a diaper fabric which comprises applying to the fabric one or more images by means of an ink jet printing technique during the fabrication of the diaper from its component materials. Preferably, the invention is used to apply a fluid indicator fluid to that face of the impervious layer to be in contact with the absorbent layer during the manufacture of the composite diaper fabric, the other face of the absorbent layer being that which is to be directly or indirectly in contact with a wearer of the diaper. It is also preferred that the indicator fluid comprise a water-soluble dyestuff whereby the indicator is rendered mobile upon contact with a fluid. The invention further provides a diaper having an image formed thereon, preferably on that face of the impervious layer in contact with the absorbent layer, which image comprises a series of dots configured to form the desired image, preferably the image is formed from a water-soluble dyestuff. |
