Title:
【発明の名称】補助溶剤としてポリオール/アルキレンオキシド縮合物を含む水性インクジェットインキ
Document Type and Number:
Japanese Patent JP2714485
Kind Code:
B2
Abstract:
An ink for ink jet printers which comprises an aqueous carrier medium, pigment dispersion or dye and a polyol/alkylene oxide condensate cosolvent which eliminates film formation on thermal ink jet resistor surfaces thereby eliminating non-uniformity in optical density. The cosolvent present at least 5% has a solubility in water of at least 4.5 parts in 100 parts of water at 25 DEG C. and a general formula: wherein X=-H or -CH3; R=-H, -CH3, -C2H5, -C3H7, -C4H9, or -CH2O(CH2CH2O)eH; b=0 or 1, a+d+f(c+e)=2-100; and f=1-6, the cosolvent being present in the amount of at least 4.5% based on the total weight of the ink jet ink composition. These inks exhibit freedom from thermal resistor film formation, have excellent decap performance, are storage stable and give images having excellent print quality.
Inventors:
Matrick, howard
Ciepard, Miquele Elise
You, Young Sue
Ciepard, Miquele Elise
You, Young Sue
Application Number:
JP50877193A
Publication Date:
February 16, 1998
Filing Date:
November 05, 1992
Export Citation:
Assignee:
E.I.du Pont de Nemours & Company
International Classes:
B41J2/01; B41M5/00; C09D11/00; (IPC1-7): C09D11/00; B41J2/01; B41M5/00
Domestic Patent References:
| JP418464A | ||||
| JP418465A | ||||
| JP418466A | ||||
| JP5186730A |
Attorney, Agent or Firm:
Chika Takagi (2 outside)