Claims
- 1. An ink-jet printing ink comprising 5 to 30% by weight of a reactive dye having at least one of a vinylsulfone group and a monochlorotriazine group and an aqueous liquid medium, wherein the liquid medium contains at least 10 to 2000 ppm of a phosphate ion (PO.sub.4.sup.3-).
- 2. The ink-jet printing ink according to claim 1, further comprising polyphosphate ions having a polymerization degree of at least 3.
- 3. An ink-jet printing ink according to claim 1, wherein the phosphate ions are supplied via a sodium salt.
- 4. An ink-jet printing ink according to claim 1, wherein the phosphate ions are supplied via at least one of disodium phosphate, monosodium phosphate, sodium tripolyphosphate and trisodium phosphate.
Priority Claims (2)
Number |
Date |
Country |
Kind |
5-004318 |
Jan 1993 |
JPX |
|
5-326943 |
Dec 1993 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 08/175,503 filed Dec. 30, 1993, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4373954 |
Eida et al. |
Feb 1983 |
|
5270730 |
Yaegashi et al. |
Dec 1993 |
|
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Number |
Date |
Country |
0425150 |
May 1991 |
EPX |
54-059936 |
May 1979 |
JPX |
61-231289 |
Oct 1986 |
JPX |
62-283174 |
Dec 1987 |
JPX |
63-168382 |
Jul 1988 |
JPX |
3046589 |
Jul 1991 |
JPX |
2184742 |
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GBX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
175503 |
Dec 1993 |
|