ink comosition science

[ahmadl]

ink composition ************************************











hi there . i have all kind ink jet printer . and i study 2 years about ink formulation.
basic dye or pigment ink ----acidic dye or pigment ink... or solvent ink . from india . lyson or some else.

would you like we figured out whats ink? can you cooperate with me about all cleaner
research in the world that exist .
ok . lets start this treat..

we know ammonia solution work good on alkaline sort dye or pigment ink. but no more
acidic ink will clog badly when you use wrong cleaner .
acidic dye or pigment ink interest all purpose cleaner or bathroom cleaner or like that !
why? ok
we must know what is ph and how work?

 

[ahmadl]

most basic dye ink cleaner formulation::::

isopropyle 5~ 40% for test outside of printer for balance in solution.

all kind glass cleaner that ph = 7 or above are base.. material

propylene glycol or glysrin . prefer but no need

ammonia x< 1%

ok see . if you want make it ph lower you must decrease ph level about size 12 ~7

pay attention ink viscosity for cleaning print head in epson or hp or canon is different.

usually ink viscosity in epson is 4cp or higher.
and in hp is 2 cp for good flow ..
you can fill empty epson cartridge with this cleaner but no more in hp. because viscosity .

see you later . tank you. soheil

 

[ahmadl]

hi there .how are you today .
lets see.
most black pigment ink and clolerd pigment ink can dissolve completely when you find all purpose cleaner. not more an other sort dye ink
usually all purpose cleaner can dissolve germ and greasy surface and can clean goodly black stain from oven or sink or wall . and can attack on the black pigment base alkaline
about ph x>7 and we will see cleaning solution must be alkaline about ph=8~14
. i tested before yearse ago.
but consider you see ammonia + isopropyle or in others + with out iso propyle can dissolve pigment black good ly and no more acidic black pigment.
we figured out in next tread post
how can we dissolve acidic black or colored pigment.
tank u. dr soheil dasat.iran

 

[ahmadl]

ink composition:

like this : isopropyle : most 3%

glysrin: 15%

dipropylene glycol 5%

pigment like black or dye inkset 2%



sorbitol: .01 %

viscosity = 2~4 differ

ph= 5.4 ~ 8

gravity: 1

tension and surface brake and anti foam in best product and .......


remember for cleaning print head 1000 kind cleaning solution might be exit in the world.
but this is universal cleaner like .
Ion-exchanged water 80 pts.wt.
Sodium dodecylbenzenesulfonate
0.2 pts.wt.
Diethylene glycol 20 pts.wt.

please test out side of printer for seeing how one drop ink in container can dissolve,
if ink drop dissolve and disperse sudden its safe .
if ink drop stick to bottom or one side its not safe and you can see bad clog..

any idea . any interest . no body?

 

[ahmadl]

______________________________________
Standard Ink (Black) (1)
______________________________________
Ion-exchanged water
80 pts.wt.
C.I. Direct Black 195
4 pts.wt.
Glycerol 10 pts.wt.
Diethylene glycol
5 pts.wt.
BES/LiOH for pH adjustment to 7.0
______________________________________
BES : (N,NBis(2-hydroxyethyl)-2-aminoethanesulfonic acid (C6 H1
NO5 S).



This ink had a viscosity of 2.0 mPa.s and a surface tension of 58 mN/m.

______________________________________
Standard Ink (Black) (2)
______________________________________
Ion-exchanged water 80 pts.wt.
C.I. Direct Black 168 3 pts.wt.
Nonionic surfactant (Nissan Nonion E230 (trade
0.1 pt.wt.
name), manufactured by Nippon Oil & Fats Co.,
Ltd., Japan)
Diethylene glycol 15 pts.wt.
Ethyl alcohol 3 pts.wt.
______________________________________



This ink had a pH of 8.6, a viscosity of 2.3 mPa.s, and a surface tension of 40 mN/m.

______________________________________
Standard Ink (Black) (3)
______________________________________
Ion-exchanged water 80 pts.wt.
C.I. Direct Black 168 3 pts.wt.
Nonionic surfactant (Nissan Nonion E230 (trade
0.1 pt.wt.
name), manufactured by Nippon Oil & Fats Co.,
Ltd.)
Diethylene glycol 10 pts.wt.
Thiodiglycol 5 pts.wt.
Isopropyl alcohol 3 pts.wt.
BES/LiOH for pH adjustment to 7.0
______________________________________

This ink had a viscosity of 2.3 mPa.s and a surface tension of 40 mN/m.

______________________________________
Standard Ink (Color) (4)
______________________________________
Ion-exchanged water
80 pts.wt.
C.I. Direct Yellow 86
2 pts.wt.
Diethylene glycol
15 pts.wt.
BES/NaOH for pH adjustment to 7.0
______________________________________



EXAMPLE 3

A 1107 pulse ejection test was performed using standard ink (2). The ink cartridge was then replaced with a cartridge containing the same cleaning liquid as in Example 1 to conduct cleaning. Thereafter, a cartridge containing standard ink (color) (4) was mounted to conduct printing. As a result, satisfactory yellow prints free from color mixing were obtained.

COMPARATIVE EXAMPLE 1

A 1107 pulse ejection test using standard ink (2) was performed in the same manner as in Example 3. Thereafter, a cartridge containing standard ink (color) (4) was mounted without cleaning, and printing was then conducted. As a result, the print obtained immediately after initiation of ejection had suffered considerable yellow/black color mixing. Even when ejection was continued thereafter, the color mixing caused by the residual black-ink lasted for a long time.

EXAMPLE 4

Using standard ink (2), 1107 pulse and 1108 pulse ejection tests were performed. Thereafter, cleaning was conducted using a cleaning liquid having the following composition to evaluate its cleaning effect. The results obtained are shown in Table 1.

______________________________________
Ion-exchanged water 80 pts.wt.
Sodium dodecylbenzenesulfonate
0.2 pts.wt.
Diethylene glycol 20 pts.wt.
______________________________________



The above ingredients were sufficiently mixed, and the pH of the resulting solution was adjusted to 11.0 with 5% aqueous lithium hydroxide solution. This cleaning liquid had a viscosity of 2.2 mPa.s and a surface tension of 38 mN/m.

EXAMPLE 5

Using standard ink (2), 1107 pulse and 1108 pulse ejection tests were performed. Thereafter, cleaning was conducted using a cleaning liquid having the same composition as in Example 4 without adjusting the pH of the cleaning liquid. This cleaning liquid had a pH of 7.5, a viscosity of 2.2 mPa.s, and a surface tension of 38 mN/m. Thus, the cleaning effect of the cleaning liquid was evaluated. The results obtained are shown in Table 1.

EXAMPLE 6

Using standard ink (3), 1107 pulse and 1108 pulse ejection tests were performed. Thereafter, cleaning was conducted using a cleaning liquid having the following composition to evaluate its cleaning effect. The results obtained are shown in Table 1.

______________________________________
Ion-exchanged water 80 pts.wt.
Sodium laurate 2 pts.wt.
Glycerol 30 pts.wt.
Carboxymethyl cellulose
0.1 pt.wt.
______________________________________



The above Ingredients were sufficiently mixed, and the pH of the resulting solution was adjusted to 8.0 with 10% aqueous ammonium phosphate solution and 5% aqueous citric acid solution. This cleaning liquid had a viscosity of 3.8 mPa.s and a surface tension of 37 mN/m.

EXAMPLE 7

Using standard ink (2), 1107 pulse and 1108 pulse ejection teats were performed. Thereafter, cleaning was conducted using a cleaning liquid having the same composition as in Example 6 to evaluate its cleaning effect. The results obtained are shown in Table 1.

EXAMPLE 8

Using standard ink (1), 1107 pulse and 1108 pulse ejection tests were performed. Thereafter, cleaning was conducted using a cleaning liquid having the following composition to evaluate its cleaning effect. The results obtained are shown in Table 1.

______________________________________
Ion-exchanged water 80 pts.wt.
Nonionic surfactant (Nissan Nonion P223 (trade
0.2 pts.wt.
name), manufactured by Nippon Oil & Fats Co.,
Ltd.)
Diethylene glycol 15 pts.wt.
Sodium carbonate 0.3 pts.wt.
Urea 2 pts.wt.
Ethyl alcohol 2 pts.wt.
______________________________________



The above ingredients were sufficiently mixed, and the pH of the resulting solution was adjusted to 8.0 with 5% aqueous triethanolamine solution.

This cleaning liquid had a viscosity of 2.1 mPa.s and a surface tension of 38 mN/m.

EXAMPLE 9

Using standard ink (1), 1107 pulse and 1108 pulse ejection tests were performed. Thereafter, cleaning was conducted using a cleaning liquid having the following composition to evaluate its cleaning effect. The results obtained are shown in Table 1.

______________________________________
Ion-exchanged water 80 pts.wt.
Glycerol 15 pts.wt.
______________________________________



The above Ingredients were sufficiently mixed to prepare the cleaning liquid. This cleaning liquid had a pH of 7.1, a viscosity of 2.1 mPa.s, and a surface tension of 60 mN/m.

EXAMPLE 10

Using standard ink (2), 1107 pulse and 1108 pulse ejection tests were performed. Thereafter, cleaning was conducted using a cleaning liquid having the following composition to evaluate its cleaning effect. The results obtained are shown in Table 1.

______________________________________
Ion-exchanged water 80 pts.wt.
Sodium laurate 0.01 pt.wt.
Glycerol 15 pts.wt.
______________________________________



The above ingredients were sufficiently mixed, and the pH of the resulting solution was adjusted to 7.5 with 10% aqueous sodium carbonate solution. This cleaning liquid had a viscosity of 2.0 mPa.s and a surface tension of 46 mN/m.

EXAMPLE 11

Using standard ink (2), 1107 pulse and 1108 pulse ejection tests were performed. Thereafter, cleaning was conducted using a cleaning liquid having the following composition to evaluate its cleaning effect. The results obtained are shown in Table 1.

______________________________________
Ion-exchanged water 80 pts.wt.
Diethylene glycol 15 pts.wt.
______________________________________



The above ingredients were sufficiently mixed, and the pH of the resulting solution was adjusted to 10.0 with 10% aqueous sodium hydroxide solution. This cleaning liquid had a viscosity of 2.0 mPa.s and a surface tension of 60 mN/m.

EXAMPLE 12

Using standard ink (3), 1107 pulse and 1108 pulse ejection tests were performed. Thereafter, cleaning was �conducted using a cleaning liquid having the following composition to evaluate its cleaning effect. The results obtained are shown in Table 1.

______________________________________
Ion-exchanged water 80 pts.wt.
Nonionic surfactant (Surfynol 465, manufactured by
1 pt.wt.
Nissin Chemical Industry Co., Ltd., Japan)
Thiodiglycol 20 pts.wt.
Urea 2 pts.wt.
Ethyl alcohol 2 pts.wt.
______________________________________



The above ingredients were sufficiently mixed, and the pH of the resulting solution was adjusted to 5.0 with 5% aqueous sulfuric acid solution. This cleaning liquid had a viscosity of 1.7 mPa.s and a surface tension of 33 mN/m.

For evaluating the cleaning liquids, a thermal ink-jet printer employing a thermal ink-jet head of the type shown in JP-A-1-148560 was fabricated and used to examine ejection amount. Continuous ejection tests were performed over 1107 and 1108 pulses.

______________________________________
Initial ejection amount
102 pl
Ejection amount after 1 107 pulse test
91 pl
Election amount after 1 108 pulse test
79 pl
______________________________________



The decreases in ejection amount were 11 pl and 23 pl, respectively.

Each cleaning liquid was evaluated based on the following formulae.

After 1107 pulse test:

(102 pl (initial ejection amount)-X (ejection amount after cleaning))/11 pl (decrease)100

After 1108 pulse test:

(102 pl (initial ejection amount)-X (ejection amount after cleaning))/23 pl (decrease)100

.smallcircle..smallcircle.: ejection amount change was below 5%.

.smallcircle.: ejection amount change was 5 to 10%, excluding 10%.

Δ: ejection amount change was 10 to 30%, excluding 30%.

x: ejection amount change was 30% or higher.

TABLE 1
__________________________________________________________________________
Evaluation Cleaning Liquid
Ink
Results Surface Surface
1 107
1 108
pH Viscosity
tension
pH
Viscosity
tension
__________________________________________________________________________
Exam- oo oo 11.0
2.2 38 8.6
2.3 40
ple 4
Exam- oo o 7.5
1.8 37 8.6
2.3 40
ple 5
Exam- oo oo 8.0
3.8 37 7.0
2.3 40
ple 6
Exam- oo o 8.0
3.8 37 8.6
2.3 40
ple 7
Exam- oo oo 8.0
2.1 38 7.0
2.0 58
ple 8
Exam- oo o 7.1
2.1 60 7.0
2.0 58
ple 9
Exam- oo Δ
7.5
2.0 46 8.6
2.3 40
ple 10
Exam- oo o 10.0
2.0 60 8.6
2.3 40
ple 11
Exam- o Δ
5.0
1.7 33 7.0
2.3 40
ple 12
__________________________________________________________________________



EXAMPLE 13

Examples using a cleaning cartridge packed with a cleaning liquid holder are then described.

Since a removable cleaning cartridge is used in the present invention, there is a possibility that the cleaning liquid might leak from the junction between the cleaning liquid tank and the heating head. It is therefore desirable to pack the cleaning cartridge with a cleaning liquid holder.

Specifically, a polyurethane sponge was used as a holder in cleaning with suction. As a result, the holder showed excellent cleaning liquid-holding ability and gave satisfactory results. Further, a fibrous material showed excellent cleaning liquid-releasing properties as well as excellent cleaning liquid-holding ability, so that the cleaning liquid was fed efficiently and more satisfactory results were obtained.

On the other hand, in cleaning with pressurizing, a cleaning liquid could be satisfactorily fed when a polyurethane sponge having uniformity in void size was used, because pressure was applied from an upper part of the cartridge. Further, a cleaning cartridge designed to prevent cleaning liquid leakage not with a cleaning liquid holder but with only a valve mechanism disposed in the tank was used, and was found to be effective in satisfactorily feeding the cleaning liquid.

The cleaning liquid holders shown above were given as mere examples, and known ink holders may be used as the cleaning liquid holder in this invention.

The cleaning of & heating head with the cleaning cartridge of the present invention can be conducted at any time when ejection from the heating head has become unstable, because the removable ink cartridge is replaced with the cleaning cartridge before cleaning. Consequently, according to the cleaning method of the present invention, an ink-jet recording apparatus can recover its ejection stability without fail, whereby the whole system including the heating head and the ink can have improved reliability. Furthermore, the cleaning method has an advantage that since the whole ink channel can be cleaned, shifting to an ink of another color is easy.

While the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof.

* * * * *

 

[ahmadl]

ok . please let me say cleaning print head proses is very easy if you choice correct
cleaner for your print head that concern to your ink specially how can refill with non OEM.
i am telling you if you have one print head that all tiny heater get very very bad clog.
if you did not try wrong cleaner basic or acidic.
you will see its open sudden in at last 3 minute for good printing and new life.
then dont believe one week or one month for cleaning print head.
pay attention and do your best for best choice of cleaner formulation may be you make it maybe others.
and
i have 1 request from dear manager of web site . if he can manage my all treat post and best design or category.
tank you

 

[ahmadl]

good morning today! how are you?

one important thing that you must be remember . this is.

why other people when they dont know even any thing about hp . they recommend wrong way! all hp cartridge and print head that you will use . please dont pay attention to hp printer mechanism . pay attention to ink that you want refill that second time or clean and unclog print head . return to your ink bottle . and test out side in small container for basic cleaner ammonia . or acidic cleaner.
no body notice to ink that we use . when i dont know what is your ink.. what is your ph?label or company or sort or kind -
how can i guide you to unclog printer. but no more in canon or epson because these printer not to need to refill like epson and ink cartridge always constant !!!!!!like TO734 EPSON CARTRIDGE THAT ALL PEOPLE KNOW THAT! PH= 8

dear website manager many many wrong style for unclog print head exist here.
please repair wrong post tread . and people must be pay wrong money every day of unclog...
tank you. soheil.

 

[panos]

I agree, the ink is often a very serious factor in printhead clogging.

I found the compositions you proposed here: http://www.freepatentsonline.com/5825380.html

Are you the author of this patent ?

 

[ahmadl]

dear panos im not .. but this patent has much problem and it is not complete ..

but i would to share this treat and courage other people for cooperation..
tank you