White ink printing method and printed matter
A white ink printing method is provided that includes forming a white ink layer by applying a white ink to a predetermined region of a recording medium having a plurality of fabric grains. The forming the white ink layer includes forming a localized thick coating portion of the white ink layer. The localized thick coating portion is spanning a plurality of the fabric grains and not along a fabric grain direction.
1 . A white ink printing method comprising:
forming a white ink layer by applying white ink to a predetermined region of a recording medium having a plurality of fabric grains, wherein
the forming the white ink layer includes forming a localized thick coating portion of the white ink layer, the localized thick coating portion extending between one of a plurality of fabric grains and another one of the plurality of fabric grains in an extending direction that is different from a fabric grain direction.
2 . The white ink printing method according to claim 1 , wherein
the localized thick coating portion of the white ink layer is formed based on a two-dimensional pattern having a distribution which is difficult to be visually recognized.
3 . The white ink printing method according to claim 1 , wherein
the localized thick coating portion of the white ink layer includes m types of thick coating portions, where m is an integer greater than or equal to 1, each having a connection length that is one or more times a fabric grain pitch.
4 . The white ink printing method according to claim 1 , wherein
the localized thick coating portion of the white ink layer is formed at an angle that is substantially orthogonal to the fabric grain direction.
5 . The white ink printing method according to claim 1 , wherein
the localized thick coating portion of the white ink layer is formed at an angle that is 45° or more and 135° or less with respect to the fabric grain direction.
6 . The white ink printing method according to claim 1 , wherein
an area of the localized thick coating portion of the white ink layer is 50% or less of an area of the predetermined region of the recording medium.
7 . The white ink printing method according to claim 1 , wherein
the localized thick coating portion of the white ink layer forms a pattern based on a specific design having a connection length that is one or more times a fabric grain pitch.
8 . A printed matter comprising:
a recording medium having a plurality of fabric grains;
a white ink layer disposed on the recording medium; and
a colored ink layer disposed on the white ink layer; wherein
the white ink layer has a non-thick coating portion of white ink, and a thick coating portion in which an adhesion amount of the white ink is 2 times or more and 8 times or less that of the non-thick coating portion, and
the thick coating portion extends between one of the plurality of fabric grains of the recording medium and another one of the plurality of fabric grains in an extending direction that is different from a fabric grain direction.