Title:
INK SUPPLY TUBE
Document Type and Number:
WIPO Patent Application WO/2021/125233
Kind Code:
A1
Abstract:
Provided is an ink supply tube that can suppress color residue of ink. This ink supply tube 10 comprises: a first layer 12 that is formed of an unmodified ethylene/tetrafluoroethylene copolymer resin and is in contact with ink; a second layer 14 that is formed of a modified ethylene/tetrafluoroethylene copolymer resin on the outer periphery of the first layer 12; a third layer 16 that is formed of a polyamide resin or a modified polypropylene resin modified with a basic functional group on the outer periphery of the second layer 14; a fourth layer 18 that is formed of an ethylene-vinyl alcohol copolymer resin having a gas barrier property on the outer periphery of the third layer 16; and a fifth layer 20 that is formed of a modified polypropylene resin modified with an acidic functional group on the outer periphery of the fourth layer 18.
Inventors:
HIOKI TOMOYA (JP)
Application Number:
PCT/JP2020/047005
Publication Date:
June 24, 2021
Filing Date:
December 16, 2020
Export Citation:
Assignee:
NITTA CORP (JP)
International Classes:
F16L11/04; B32B1/06; B32B1/08
Domestic Patent References:
| WO2001094829A1 | 2001-12-13 | |||
| WO2019059243A1 | 2019-03-28 | |||
| WO2016186111A1 | 2016-11-24 |
Foreign References:
| JP2011062881A | 2011-03-31 | |||
| JP2005315362A | 2005-11-10 |
Attorney, Agent or Firm:
DORAIT IP LAW FIRM (JP)
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