Aqueous inkjet pigment dispersion, method for producing same, and aqueous inkjet ink
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09D-011/107
C09D-011/08
C09D-011/322
C09D-011/326
C09D-017/00
C09B-067/08
C09B-067/46
C09D-011/38
C09D-011/104
출원번호
US-0249478
(2016-08-29)
등록번호
US-9803096
(2017-10-31)
우선권정보
JP-2014-074721 (2014-03-31)
발명자
/ 주소
Nishimura, Naoko
출원인 / 주소
FUJIFILM CORPORATION
대리인 / 주소
SOLARIS Intellectual Property Group, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
Provided are a method for producing an aqueous inkjet pigment dispersion, including producing a mixed liquid of water, a pigment, a pigment dispersing polymer, and rosin acid in an amount of from 3% by mass to 30% by mass relative to the total mass of the pigment, and reducing the amount of rosin ac
Provided are a method for producing an aqueous inkjet pigment dispersion, including producing a mixed liquid of water, a pigment, a pigment dispersing polymer, and rosin acid in an amount of from 3% by mass to 30% by mass relative to the total mass of the pigment, and reducing the amount of rosin acid included in the produced mixed liquid, to less than 3.0% by mass relative to the total mass of the pigment; an aqueous inkjet pigment dispersion; and an aqueous inkjet ink.
대표청구항▼
1. A method for producing an aqueous inkjet pigment dispersion, the method comprising: producing a mixed liquid of water, a pigment, a pigment dispersing polymer, and rosin acid in an amount of from 3% by mass to 30% by mass relative to the total mass of the pigment; andreducing the amount of rosin
1. A method for producing an aqueous inkjet pigment dispersion, the method comprising: producing a mixed liquid of water, a pigment, a pigment dispersing polymer, and rosin acid in an amount of from 3% by mass to 30% by mass relative to the total mass of the pigment; andreducing the amount of rosin acid included in the produced mixed liquid, to less than 3.0% by mass relative to the total mass of the pigment. 2. The method for producing an aqueous inkjet pigment dispersion according to claim 1, wherein the amount of rosin acid after the reducing of the amount of rosin acid is 0.25% by mass or more and less than 3.0% by mass relative to the total mass of the pigment. 3. The method for producing an aqueous inkjet pigment dispersion according to claim 1, wherein the reducing of the amount of rosin acid involves reducing the amount of rosin acid using ultrafiltration. 4. The method for producing an aqueous inkjet pigment dispersion according to claim 1, further comprising crosslinking the pigment dispersing polymer, after the producing of a mixed liquid. 5. The method for producing an aqueous inkjet pigment dispersion according to claim 1, wherein the producing of a mixed liquid involves mixing the pigment and rosin acid, and then mixing the resultant with the pigment dispersing polymer. 6. The method for producing an aqueous inkjet pigment dispersion according to claim 1, wherein the acid value of the pigment dispersing polymer is 90 mg KOH/g to 150 mg KOH/g. 7. The method for producing an aqueous inkjet pigment dispersion according to claim 1, wherein the acid value of the pigment dispersing polymer is 100 mg KOH/g to 120 mg KOH/g. 8. The method for producing an aqueous inkjet pigment dispersion according to claim 1, wherein the pigment dispersing polymer has a hydrophilic structural unit and a hydrophobic structural unit. 9. The method for producing an aqueous inkjet pigment dispersion according to claim 1, wherein the pigment dispersing polymer has a hydrophilic structural unit derived from (meth)acrylic acid, and a hydrophobic structural unit derived from at least one selected from C1-C20 alkyl (meth)acrylate and derivatives thereof, benzyl (meth)acrylate and derivatives thereof, and phenoxyethyl (meth)acrylate and derivatives thereof. 10. The method for producing an aqueous inkjet pigment dispersion according to claim 1, wherein in the producing of a mixed liquid, a compound having an acetylenediol group is further incorporated. 11. The method for producing an aqueous inkjet pigment dispersion according to claim 1, wherein the rosin acid is a mixture comprising one or more selected from abietic acid and a salt thereof, neoabietic acid and a salt thereof, dehydroabietic acid and a salt thereof, palustric acid and a salt thereof, levopimaric acid and a salt thereof, pimaric acid and a salt thereof, isopimaric acid and a salt thereof, and citronellic acid and a salt thereof.
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이 특허에 인용된 특허 (3)
Sugahara Yujiro (Tokyo JA) Miyazawa Kaichiro (Tsuruoka JA) Hidetika Okitsu (Tsuruoka JA) Saito Mamoru (Tsuruoka JA), Coated pigment composition having improved abrasion resistance and process for preparation thereof.
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