Method for forming an image on corrugated cardboard comprising applying a treatment liquid, first ink composition, and second ink composition

  • US 10,336,100 B2
  • Filed: 11/20/2017
  • Issued: 07/02/2019
  • Est. Priority Date: 06/03/2015
  • Status: Active Grant
First Claim
Patent Images

1. An image forming method comprising:

  • applying a treatment liquid containing at least one kind of acidic compound and having a pH of equal to or lower than 2 onto a corrugated cardboard substrate of 10≤

    L*≤

    90 on a CIELab color scale;

    applying a first ink composition, which contains a coloring material and water and in which a total content of resin particles and wax particles is equal to or less than 2% by mass with respect to a total mass of the first ink composition, to a treatment liquid-applied surface of the corrugated cardboard substrate onto which the treatment liquid is applied by an ink jet method under a condition of an amount of a liquid droplet of equal to or greater than 10 picoliters; and

    applying a second ink composition, which contains a resin, a wax, and water and in which a content of a coloring material is equal to or smaller than 0.5% by mass with respect to a total mass of the second ink composition, onto the first ink composition applied to the corrugated cardboard substrate;

    whereinwax refers to a polymer compound having a melting point that is equal to or lower than 170°

    C., and resin refers to a polymer compound that does not have a melting point or has a melting point that is higher than 170°

    C.

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