Gravure printing method
AssigneesThink Laboratory Co., Ltd., Kao Corporation
InventorsTatsuo Shigeta, Ryuma Mizushima, Yuta Matsumoto, Yasufumi Ueda
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Abstract
Provided is a gravure printing method by which high printing density and excellent highlight suitability are obtained, even if a gravure plate having high resolution and reduced thickness is used. The gravure printing method comprises: using an aqueous ink having a Zahn cup #3 viscosity at 20° C. of 11.0 seconds or more and 20.0 seconds or less, and having an evaporation rate of 30 mass % or less in a drying test, the drying test involving drying 1 g of the ink at a temperature of 40° C. and an air flow of 1,400 L/min for 30 minutes; and transferring 1 ml/m2 or more and 7 ml/m2 or less of the ink onto a printing medium.
Claims9
A gravure printing method, comprising:
- using an aqueous ink having a Zahn cup #3 viscosity at 20° C. of greater than or equal to 11.0 seconds and less than or equal to 20.0 seconds, and the aqueous ink having an evaporation rate of 30 mass % or less in a drying test, the drying test involving drying 1 g of the aqueous ink at a temperature of 40° C. and an air flow of 1,400 L/min for 30 minutes;
- and
- transferring equal to or greater than 1 ml/m2 and less than or equal to 7 ml/m2 of the aqueous ink onto a printing medium, wherein a total volume of gravure cells per 100 mm times 100 mm has a volume equal to or greater than 2 ml/m2 and less than or equal to 8 ml/m2 and each gravure cell has a depth equal to or greater than 3 μm and less than or equal to 8 μm.
A gravure printing method, comprising:
- using an aqueous ink having a Zahn cup #3 viscosity at 20° C. of greater than or equal to 11.0 seconds and less than or equal to 20.0 seconds, and the aqueous ink having an evaporation rate of 30 mass % or less in a drying test;
- and
- transferring equal to or greater than 1 ml/m2 and less than or equal to 7 ml/m2 of the aqueous ink onto a printing medium, wherein a total volume of gravure cells per 100 mm times 100 mm has a volume equal to or greater than 2 ml/m2 and less than or equal to 8 ml/m2 and each gravure cell has a depth equal to or greater than 3 μm and less than or equal to 10 μm.
A gravure printing method, comprising:
- using an aqueous ink having a Zahn cup #3 viscosity at 20° C. of greater than or equal to 11.0 seconds and less than or equal to 20.0 seconds, and the aqueous ink having an evaporation rate of 30 mass % or less in a drying test;
- and
- transferring equal to or greater than 1 ml/m2 and less than or equal to 7 ml/m2 of the aqueous ink onto a printing medium, wherein a volume of all gravure cells is equal to or greater than 2 ml/m2 and less than or equal to 8 ml/m2, wherein each of the gravure cells has a depth equal to or greater than 3 μm and less than or equal to 8 μm.
Dependencies are inferred from the claim text.