Ink set and recording method

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United States of America Patent

PATENT NO 9580614
APP PUB NO 20160297979A1
SERIAL NO

15187121

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Abstract

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The ink set of the invention includes a first ink composition and a second ink composition. The first ink composition contains a first pigment and an alkanediol having 6 or less carbon atoms and having a normal boiling point of 245° C. or more. The content of the first pigment is 1.5% by mass or more, and the content of the alkanediol is 3% by mass or more and 20% by mass or less. The second ink composition contains a second pigment and a penetrant other than the alkanediol. The content of the second pigment is less than 1.5% by mass. The penetrant contained in the second ink composition has an osmotic force higher than that of the alkanediol contained in the first ink composition.

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Patent Owner(s)

  • SEIKO EPSON CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kagata, Takayoshi Shiojiri, JP 98 440
Shiono, Shohei Matsumoto, JP 21 133

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