JPS58101094A - Heat transfer ink composition - Google Patents

Abstract

PURPOSE:To provide the titled composition capable of efficiently transferring without scumming (base deterioration) in a printing recording by composing of colorant, wax material, polyethylene series wax and rosin high molecular compound and of specific melting point and viscosity. CONSTITUTION:Colorant (for example, carbon black or the like), wax material (for example, carnauba wax or the like), polyethylene series wax (for example, polyethylene wax acrylate) and rosin high molecular compound (for example, petroleum resin or the like) are pulverized in a ball mill, thereby obtaining objective composition having 60-90 deg.C of melting point and 400-1,000CP of viscosity at melting time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transfer ink composition for thermal recording.

In recent years, as a thermal printer,
The U-type printer was put into practical use in the 7th century, using heat to generate mineral oil, and became widely used due to its simplicity and sensitivity.

Thermal printers instantaneously convert the print signal No. 16 into thermal energy by making full use of the 4 thermal heads 1 and the silent energy propagated onto the print # group to generate the original print recording signal. This feature is characterized by a tatami mat that creates a print record r1 corresponding to . One of the ball distribution methods used in thermal eaves printers is the method by Nekki Kuma. Another known method is to use thermal transfer carbon. A chemical reaction caused by so-called heat
A colorless, light-colored component of q The finished items are used in six sets in the record. ′#,
Moss is also known as the transfer-type recording method, and is a method in which a substance of a different color is added to a composition that becomes fluid when heated.
, By transferring the wayume thermal transfer composition, the printing mark ll11
It is something that creates Thermal writing - The paper develops color faithfully as it gets used to the heat energy signal given to it.
Paper that is similar in size to paper can easily cause Y discoloration due to heat sources other than the thermal head of tobacco, and even after long-term storage, the color may continue to develop, and it may not be easy to light up. There are fundamental flaws in terms of its mission as a record, such as the letters printed on the corners and the fact that it cannot be viewed all at once.
Even today, she is highly regarded as a concubine. Also, Shunhyaku has a waxy intellectual quality and an oily quality? 1 Negative, colored material is superimposed on a synthetic resin film, a sheet of paper, etc. + 92 sheets), and thermal transfer is performed using thermal energy applied from a heat source such as a thermal head. The ink composition is melted and transferred onto a receiving sheet to form a printed record.

The heat-sensitive recording method uses heat-sensitive recording paper, which does not cause any discoloration of the transferred print itself, and the coloring material is not only dyes, but also extremely stable materials called Ill family. Is it possible to use it in any order, practice and love it? Possible counter-questions, in order to make a printed record, two steps are essential, one is the transfer process, the other is the thermal transfer carbon, the answer sheet, and even if the wires are densely wired, the printed record cannot be printed. The sharpness of the letters that you can see, 13c is inferior to the print quality because there is some dirt on non-letter 9, which seems to be due to the residual heat and special effects of the thermal head.
well known.

If the ink composition is used as a nest as described above, and is released from the 7-layer ink material, then the N7 record quality light is left and right due to the following neutrality. Saharu.

+13 The viscosity of the thermal transfer ink composition during melting must be approximately equal to or less than Aθ centipoise.

12) The softening start temperature of the heat transfer dye ink composition, or as close as possible to the melting start temperature.

(:5) 9! The surface of the storage sheet... I smooth - is a certain 8th grade that scoops out the highest possible '5.

(4) The receiving sheet has the ability to quickly and efficiently absorb the melted thermal transfer ink composition! Ha.

Namely, (1) there are constraints on the transfer efficiency of the ink composition to the receiving sheet;
By setting it low, smooth transfer can be achieved. (2) is the ink WW, l1lu
This is a constraint on the l-transformation characteristic, and there is a smudge r1 that can be seen from the thermal head due to the scratches on the non-printing area.
This relates to the ink properties required to minimize the amount of water used. (3) is a constraint on the receipt sheet in order to obtain uniform ink marks, and the surface must have a high degree of ink, or the entire ink may be stippling in a dotted manner after it has been melt-transferred. It shows all the things that should be done, not just a contract, but Guo's distinctive printed notes.(4)
1c-, which indicates that in order for the thermal transfer ink composition FM to be transferred uniformly, it is expected that the material has a large absorption capacity for the ink and that the transfer effect will be enhanced. In addition, (4) requires a surface concave coating agent for the receiving sheet and a reduction in t-a during calendar processing, but this requires a certain concavity that contradicts (3) mentioned earlier. It is something.

Uninvented object butterfly, silver tint above, 1' in the printing, smut is a folk tale, M transfer T ink l111 product 5
! Regarding each sheet, without any restriction on IL, a high 513 (in terms of heat transfer ink + 111 transfer) is applied, giving = I > a x thermal energy, Thermal transfer ink composition V that allows faithful printing b1ζ
The moss of the present invention proposed by TJ is based on the ink composition of Eikeken's death.
At least the colorant! Consisting of Il-like substance, polyethylene thread wax, and rosin polymer compound, 11 points or 60″C
90°C or above, no dripping, and viscosity when melted: 400cml
We have found that 4'gt, which satisfies the above objective, if it has an a6 of from 1 to 10,000 centipoise.

As a non-inventive coloring substance, nigrosine base.

Methibibase isobasic dye 51111? +Haniki WI
In addition to oil-soluble dyes such as 1% I acid salts and oil-soluble azo dyes, carbon black, navy blue, lake red, yellow lead, iron oxide, cyanine blue, etc., there are also easily soluble crystal violet dyes. It can be used arbitrarily as a pigment.

The needle-like substances are carnauba wax, montan wax, and shegar kun wax.

Hydrogenated wax 1 also includes micro wax, oxidized micro wax, oxidized wax, and pitch wax.

It is a petroleum-based or waxy compound, such as paraffin wax. Wei 5+ Keriethylene thread wax is low molecular weight polyethylene wax, @Kikomigiri ethylene wax, polyethylene acrylic wax, polyethylene vinyl acetate wax, polyethylene crotonate vinyl wax, polyethylene maleic anhydride wax, polyethylene phthalate wax, polyethylene ethylene oxide wax, It is represented by polyethylene propylene oxide wax, and has an ethylene group as one of the components at the anti-polymerization level, and has a softening point of 907 or more, 145" (
Hereinafter, 1 a o ” (:tetoWI: enemy stick td;, 4
It is a low molecular weight ethylene compound having a value of 00 to 40,000 centipoise or less. In addition to petroleum resins obtained by copolymerizing olefin fractions of C1 or higher during the decomposition of petroleum naphtha, the rosin-based molecular compounds include coumaron indene resin, terpene resin, thermoplastic phenol 41i Ill, and xylene hats. , toluene, ester gum, lysine, hard rosin.

It is a thermoplastic resin that can be mixed with a uniform substance such as hydrogenated resin. In addition, Acupuncture Island of the thermal transfer ink composition is 60? :
More than 90'c, 100? The viscosity when melted is 400 centipoise or 10,000 centipoise. Lanolin, whale oil, castor oil,
Before olive, 11 is the movement of oil, -2 & control oil, dibutyl 7 tallate, dioctyl phthalate l/-),
There is no plastic door such as adipine dioctyl in between.

Thermal Transfer Ink Co., Ltd., Barco)
Method A: Reverse coating method, gravure coating method, roll coating method, using various fabrics, hot melt coating method, ID1. By using a solvent coating method using solvents mainly containing benzene, toluene, and xylene, it is possible to coat poly, I-ster film, l-recarbonate film, etc., as well as condenser pH film. By applying heat transfer carbon to the thin paper of Krasin shoe book, it is extremely easy to apply heat transfer carbon.
II & I can do it.

In the case of non-invention, the theoretical effects of each component are either unknown, or the following conclusions have been made from Ishun's results.

That is, polyethylene wax butterfly, heat transfer ink composition No. s! Increase in viscosity, increase in softening rate, and increase in viscosity and sound conduction and output during softening, increase in melt viscosity 4, and heat 1 applied with thermal transfer ink composition t1 Kagari Jun I/c11 Even if printing is done under sufficient conditions between the photo carbon and the receiving sheet, due to its high viscosity, there will be pointillist transfer, and the arm lines will be blurred by the mackerel stamping rod, resulting in koji. It is said that it is effective in that it becomes resistant to heat, and its once-increasing rate of Europeanization and extreme viscosity when softened completely eliminates the smearing of the receiving sheet even if there is residual heat or residual heat in the thermal head. It was found that it gave good results. Unfortunately, if the melt viscosity of the polyethylene thread wax falls below 400 centipoise, the thermal transfer ink set will have a redundant increase in melt viscosity and viscosity when softened.
When the OO centimeter is above or below, a mixed phase with a pine substance and an azine-based polymer compound becomes a box armor, and in the case of a thermal transfer ink composition, the composition is 11 #ψ, which is physically large Things become 11 times more difficult. In addition, the ant-like substance containing the lysine Washino molecular compound 441Fi and the colored wSit increases hardness, improves the tackiness that follows when melting the thermal transfer ink composition, creates stringiness, and improves I!
II? Company F has shown great effectiveness in greatly suppressing the occurrence of stains caused by rubbing of printed records.
It is worth mentioning in history that we were able to eliminate the occurrence of blurred letters when recording ink prints under insufficient adhesion. As a matter of fact, due to non-invention, the answer sheet is made of medium-quality paper with a poor thread count and poor ink absorption ability.
) Even with racing paper, it is possible to obtain a print record on the receiving sheet that is completely the same as when using a lacing paper that has undergone calendering and polishing to ensure excellent smoothness (Table 111). , the so-called capital.

1, which is an ink composition that does not select the quality, can be added.

This will be explained below with examples. All dedicated characters are i [
This is Okibe.

Example 1 3 carbon blacks, 8 waxes, 8eA carnauba wax>,'? The components of 'lyeethylene acrylic wax l 21f11' and petroleum resin '7 were pulverized for 24 hours in a hot ball mill. Misunderstood mature private photo ink I
14 years old? ! I was 450 centipoise. This f
A 12 micron thick polyester film for general use was coated with a thermal gravure coater to a thickness of 3% A4m to obtain a thermal transfer car'''74 lum.
- Shake it into a medium-sized solution, Thermal Printer PU-18
Type 08 (Oliverati) is busy and opens at 3:00! ! Continuing printing, a very clear and outstanding printing record with no smudges was obtained both at the beginning and at the end of printing, and the printed characters remained strong even when rubbed strongly with fingers. ,
Also, even when I rubbed the receiving sheet together, there was no stain or flow at all. In addition, the cough ink is completely removed from the printed area of the thermal transfer carbon film after transfer.
There were no traces of ink.

Example 2 Oil-soluble nigrosine dye<) Q-8ss Microcrystalline Wax 8T, Montan Wax 1ON Inhalation?
10 pieces of diethylene wax, 10 pieces of coumaron indene resin
part, dioctyl 7 thale) 0. ．． 001 parts, each of the above components was ground and mixed in a non-contact sand mill, melting point q2'txo
I used a thermal transfer ink set with a viscosity of 1.000 centimeters at o'().I wrinkled it on a total of 13 mm thick condenser paper so that the bar code would be 4rPL-.9! Tanishi) KN! Printing was carried out in the same manner as in Example 1 using the same method as in Example 1. From the time the printing started until 3 hours later, the surface remained clean for 1 kI. 14: A fist was made to obtain a printed record that will be filled with 14:. In addition, there was no ink in the printed portion of the l$11 transfer carbon after the transfer.

Example 3. 4jl t+3 parts, cyanine blue 0,1. Custer Hook X5RS! ! 12% microwax, m
Chemical field 1@, +, 12 strings of polyethylene ethylene oxide wax, novolac type phenol grade RF #8 trace, electrolyte oil O; A thermal transfer ink with a viscosity Iv value of 6200 centigares at 7a'c and ioo'c was obtained. This gold was applied to a 6 micron thick commercially available untreated ester film.4. * I examined the doctor to make sure that it was 5%.

On the answer sheet, form 7b- for sound - basis - same as example 1 <Jg! When I printed it, I was able to get a print record of 111 scratches and 111 scratches.

To fruition 4 Ferrite thread magnetism - Ke7 Zheng, - Oriki) - Li - 5%
, Shugoken Wax 4, Pitchwatsuchi Wax 10@IV, & Liethylene Maleic Acid Wax 5m + Low Molecular Decorated Polyethylene Wax 4.

9 parts of ester gum and 1 or more parts of each W were subjected to 3-milling in a t-thermal roll mill. The composition of this thermal transfer ink is
Melting point is 82°C, viscosity value at 100% it, 500
It was a centimeter. This 1.4 micron thick commercially available untreated polyester film was cleverly engineered to have a PK of 3.4 PK. Use 110% bleached kraft paper for the receiving sheet.
Jj was printed in the same way as 1$th@1, and the print record was completely clear with no smudges and a clear outline, and it was confirmed that the ink was M1, which was sufficient for use as a thermal transfer ink composition. . Further, it was found that this printing had good properties W,' such as carpi carbon printing for MIOR, residual magnetic flux, and Kakusugi ratio.

Actual destruction example 5 Carbon black 3Th, 12 groups of carnauba, 2% paraffin wax, 6 parts of microwax, polyethylene vinyl acetate wax 1.01llal hydrogenated rosin 7
Mix each of the ingredients above 811 in a hot ball mill between 24mm, 5'C, 1OO'j 't.
(1) A thermal transfer image with a density of 200 centimeters (t4f) was obtained. This was gravure coated on the outside of the glassine of 10←1 to give a thickness of 3.5% to obtain an F-roll carbon paper.
5 赳＋-＆)）Rage nog paper all in one, real m 1
After writing 111 characters in the same manner as above, I was able to create ink with a clear imryoki ji with a spotless shoulder. In the 7CS model, there was no trace of residual ink at all in the fine printed letters of the 4-cut heat transfer carbon, so it was clear that it had been transferred to the entire surface.

Ratio f' Tsukuda 1 3 parts of carbon black, 15 parts of carnauba, 7 parts of Monta/wax, 3 m of paraffin wax, and 0.5 parts of oil were kneaded in a non-contact ball mill for 24 hours, and the melting point was +i'i at 76°C, 100'j
A comparative heat-transfer 4-ink set of 26 centibore (w or 26 centibore) was obtained. This was the same as in Example 5.
I made a heat-imparting carbon paper for use in computer software.

9) F (: 55% first use tracing paper) 4 printed in the same way as in Example 5 1 Rao 11
Inzu 扼) is Shishin, arrogant, printing or flow, and tζ is 7
When the composite sheets are strongly rubbed against each other, the print flow phenomenon is distorted, and when the present comparison is compared with Example 5 according to the present invention, the transfer efficiency is inferior, due to 6 disputes. It seems obvious that there was a lack of space between the printed characters. In addition, the printed area of the carbon paper was black and strong after 1 year, and the entire surface of the heat transfer ink composition provided on the glassine paper-L did not roll over. understood.

Misfire 11J as described in detail on p+, Examples and Comparative Examples
As a printing recording material for Ike, Summaru type printers,
In the past, both the physical 1111F shortage of characters and the smearing of non-printed characters, which have been pointed out as intersequential points, are both fundamental points? - Extremely, wfl >) There is a great joy of non-invention in that it is possible, especially with regard to the quality of the recording paper used as the receiving sheet, without any stains - and with a stable printing rod. The journey that became possible was
Nowadays, in the midst of office automation, which is being developed day by day, it is no longer necessary to use the limited edition or market-priced notes, and it has become extremely popular. I was able to offer my condolences, and I can truly express my deepest condolences.

Claims (1)

[Scope of Claims] 1) A thermal transfer ink composition which is transferred onto a sheet by heating Cζ on an epf rod, or at least a colored one, a t(irimonoga, Polyethylene thread wax, Rodinoto: Consists of a molecular compound with a melting point of 1 or more than 60°C, 9
[c4: Vortex, viscosity when melting, 40 (Jse/Ciboaz or higher,] 0.(R) (Characteristic: A skewer below Senochiboaz) ＼゛lγi/K group 2) to f It is represented by polyethylene Hansui Malay/Tan wax, polyethylene 77 tarso wax, polyethylene ethylene A oxide wax, and polyethylene propylene 7 oxide wax. Softening point: 9LI"C or higher -1-145' (: or higher, wW m
E 5 E; %+vo-t-notiboas or more, 4
(1, OOL + Senochiboazu de /) Kushi all features and -
i-/) #' F Ink composition described in item 1. 3) Range of 1Ifnx 1st columnar molecular compound of rosin or petroleum naphtha, obtained by co-polluting fractions of C1 or higher in cracked product; petroleum side; Coumarone indene resin, terpene m side, silent n1 plastic 7 enol side, xylene stick fat, toluene side, ester gum, rosin, hydrogenated rosin, modified rosin can be mixed with @1 type material. The thermal transfer ink composition according to claim 1, which is a thermoplastic resin.