Patent ID: 6368667
Filing Date: 2002-04-09
Classification: B41M,B44F

Abstract:
The process of applying at least one masking pattern to a paper product that is at least partially translucent, comprising:a) providing a paper product having at least one ply that is at least partially translucent; b) measuring at least one sample of said paper product with a meter for the values of L, a, and b of the HunterLab Color Scale; c) measuring at least one human hand with a meter for the values of L, a, and b of the HunterLab Color Scale; d) formulating an ink with a color using the HunterLab Color Scale in which L, a, and b for the ink which when printed on said paper product is in the range of the values: Link+Ltissue+C1(Lhandâˆ’Ltissue) aink+atissue+C2(ahandâˆ’atissue) bink+btissue+C3(bhandâˆ’btissue) â€ƒwherein Ltissue and Lhand are said meter measurements of at least one paper product sample and at least one hand reading respectively; wherein atissue and ahand are said meter measurements of at least one paper product sample and at least one hand reading respectively; wherein btissue and bhand are said meter measurements of at least one paper product sample and at least one hand reading respectively; and wherein C1 is in the range from about âˆ’0.5 to about 1, and C2 and C3 each is in the range from 0 to about 1; and e) printing said formulated ink in a pattern on at least one ply of said paper product.