Title:
INK-FILLED CARTRIDGE
Document Type and Number:
WIPO Patent Application WO/2022/210704
Kind Code:
A1
Abstract:
Provided is an ink-filled cartridge with which there is little incorporation of air bubbles and it is possible to inhibit intermittent discharge. This ink has a viscosity at 25°C of 50-2,000 dPa∙s, said viscosity being measured at the values 25°C, 5 rpm, and 30 seconds using a cone and plate type viscometer in compliance with methods for viscosity measurement according to 10 Cone and Plate Rotational Viscometers in JIS K8803: 2011. At least one air bubble having a diameter of at least 0.1 mm is included in the ink in a syringe and, when the distance from the bottom end of a dispensing nozzle to a plunger in the cylindrical axis direction of the syringe is L, and using the bottom end of the dispensing nozzle as a starting point (S), the point at a distance of L/2 as a point (M), and the plunger as an end point (F), the total air-bubble volume A (cm3) in the syringe between the starting point (S) and the point (M) and the total air-bubble volume B (cm3) in the syringe between the point (M) and the end point (F) satisfy the relational expression: 0≤A/B<1.0.
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Inventors:
NAKAJIMA KOSUKE (JP)
TAKAHASHI CHIKA (JP)
KANAZAWA YASUYO (JP)
NOGUCHI TOMOTAKA (JP)
TAKAHASHI CHIKA (JP)
KANAZAWA YASUYO (JP)
NOGUCHI TOMOTAKA (JP)
Application Number:
PCT/JP2022/015422
Publication Date:
October 06, 2022
Filing Date:
March 29, 2022
Export Citation:
Assignee:
TAIYO INK MFG CO LTD (JP)
International Classes:
B05D1/26; B05C5/00; B05D3/00
Domestic Patent References:
| WO2020202782A1 | 2020-10-08 |
Foreign References:
| JP2020127919A | 2020-08-27 | |||
| JP2000246887A | 2000-09-12 |
Attorney, Agent or Firm:
NAKAMURA Yukitaka et al. (JP)
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