JP2750358B2 - Manufacturing method of liquid transfer ink supply member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a liquid transfer ink replenishing member for replenishing a liquid transfer ink to an in-use ink ribbon or a type body provided in a typewriter, a select printer, or the like. It relates to a manufacturing method.

[Conventional technology]

This type of liquid transfer ink replenishing member is used by including a predetermined amount of liquid transfer ink in a porous occlusion body,
Conventionally, the following manufacturing method has been adopted for uniformly containing the liquid transfer ink in the entire porous occlusion body.

First, a porous occluder is submerged in an ink storage tank storing the liquid transfer ink, and the liquid transfer ink is absorbed into the porous occluder as much as possible. Next, the porous occlusion body is taken out of the ink storage tank, and the liquid transfer ink excessively contained in the porous occlusion body is absorbed and removed by the porous ink absorbing member. Then, the porous occlusion body impregnated with the liquid transfer ink is combined with a structure such as a cassette case.

[Problems to be solved by the invention]

However, in the case of the above-described conventional method, a step of immersing the porous occlusion body in the liquid transfer ink in the ink storage tank and an extra liquid transfer ink once absorbed by the porous occlusion body are absorbed by the ink absorbing member. A complicated process for absorbing and removing is required, which not only reduces the productivity but also wastes a large amount of liquid transfer ink.

In addition, the amount of ink contained in the porous occlusion body tends to fluctuate due to the variation in the amount of ink removed by the ink absorbing member, and the diffusion of the liquid transfer ink contained in the porous occlusion body is uneven. Because it is easy to become
The replenishment amount of the liquid transfer ink transferred from the porous occlusion body to the ink ribbon or the type body becomes unstable, and as a result, the density of the printed image becomes extremely high with time even though one porous occlusion body is used. There was a quality problem such as change.

In addition, since the storage operation of the liquid transfer ink must be performed before the assembling of the accessory parts, the liquid transfer ink impregnated in the porous occlusion body adheres to an operator or assembling equipment, thereby deteriorating the working environment. was there.

The present invention has been made in view of the above-described circumstances, in that a predetermined amount of liquid transfer ink can be uniformly contained in the entire porous occlusion body while simplifying a liquid transfer ink storage operation process. Have purpose.

[Means for solving the problem]

The method for manufacturing a liquid transfer ink replenishing member according to the present invention includes:
The most significant feature is that any one of the following manufacturing methods is implemented, and it is also possible to combine these manufacturing methods.

In a method for manufacturing a liquid transfer ink replenishing member for replenishing a fixed amount of a liquid transfer ink at room temperature to an ink ribbon or a type body, a fixed amount of the liquid transfer ink is supplied to a porous occluder molded into a predetermined shape. Inject and then
A manufacturing method, wherein the liquid transfer ink is stored in a high-temperature atmosphere for a predetermined time so as to diffuse and absorb the liquid transfer ink substantially uniformly throughout the porous occlusion body.

In a method for manufacturing a liquid transfer ink replenishing member for replenishing a fixed amount of a liquid transfer ink at room temperature to an ink ribbon or a type body, a fixed amount of the liquid transfer ink is supplied to a porous occluder molded into a predetermined shape. Inject and then
A manufacturing method, wherein the liquid transfer ink is substantially uniformly diffused and absorbed in the whole of the porous occlusion body by storing for a predetermined time while applying ultrasonic waves.

In a method for manufacturing a liquid transfer ink replenishing member for replenishing a fixed amount of a liquid transfer ink at room temperature to an ink ribbon or a type body, a fixed amount of the liquid transfer ink is supplied to a porous occluder molded into a predetermined shape. Inject and then
Manufacturing the liquid storage ink by applying a high-frequency electromagnetic wave to the porous occlusion body, storing the liquid transfer ink for a predetermined time, and diffusing and absorbing the liquid transfer ink substantially uniformly throughout the porous occlusion body. Method.

In a method for manufacturing a liquid transfer ink replenishing member for replenishing a fixed amount of a liquid transfer ink at room temperature to an ink ribbon or a type body, a fixed amount of the liquid transfer ink is supplied to a porous occluder molded into a predetermined shape. Inject and then
A manufacturing method, characterized in that the liquid transfer ink is substantially uniformly diffused and absorbed in the entirety of the porous occlusion body by storing the porous occlusion body for a predetermined time while applying vibration.

In performing the above-described manufacturing methods, the following method may be employed.

During the storage period, the porous storage body after storing the liquid transfer ink is stored under a reduced pressure atmosphere.

 The injection of the liquid transfer ink uses an injection needle.

The porous occlusion body is housed in a predetermined case before injecting the liquid transfer ink.

(Operation)

In the case of the above manufacturing method, by storing the porous occlusion body in which a certain amount of the liquid transfer ink is injected under a high temperature atmosphere for a predetermined time, usually 300 to 500 at normal temperature.
100 cps viscosity of liquid transfer ink with viscosity of about cps
Since the liquid transfer ink can be reduced to such an extent, the injected liquid transfer ink can be uniformly diffused and absorbed in the entire porous occlusion body in a short time.

In the case of the above manufacturing method, the porous occluder into which a certain amount of the liquid transfer ink has been injected is stored for a predetermined time while applying ultrasonic waves, so that the porous occluder and the liquid transfer ink injected therein are Can significantly reduce the contact frictional resistance of the liquid transfer ink and the viscosity of the liquid transfer ink itself, so that the liquid transfer ink can be uniformly diffused and absorbed in the entire porous occlusion body in a short time. .

In the case of the above manufacturing method, by storing for a predetermined time while applying a high-frequency electromagnetic wave to the porous occluder into which a certain amount of liquid transfer ink has been injected, utilizing the induction heating action by the alternating electric field generated between the electrodes. Since the liquid transfer ink injected into the porous occlusion body can be heated, similarly to the above-described production method, it is usually 300 to 500 at room temperature.
100 cps viscosity of liquid transfer ink with viscosity of about cps
With such a reduction, the injected liquid transfer ink can be diffused and absorbed uniformly in a short time over the entire porous occlusion body.

In the case of the above-mentioned manufacturing method, by storing for a predetermined time while applying vibration to the porous occluder into which a certain amount of the liquid transfer ink has been injected, the porous occluder is diffused into the liquid transfer ink injected into the porous occluder. And the contact frictional resistance between the porous occlusion body and the liquid transfer ink injected into the porous occlusion body can be reduced. Can be uniformly diffused and absorbed.

In carrying out each of the above-mentioned manufacturing methods, when the above method is adopted, when the porous occlusion body after occlusion of the liquid transfer ink is exposed to a reduced pressure atmosphere, the porous occlusion body is dissolved in the liquid transfer ink. The expansion of the gas components and the air in the minute voids present inside the porous occlusion body are smoothly discharged to the outside. The pressure enables uniform ink occlusion even microscopically.

Further, when the above method is adopted, the transfer ink can be easily injected with an injection needle.

Furthermore, in the case where the above method is adopted, by storing the porous occlusion body in a predetermined case before injecting the liquid transfer ink, the liquid transfer ink impregnated in the porous occlusion body can be used. It can be prevented from sticking to workers and assembly equipment.

〔The invention's effect〕

Therefore, even if any of the above-described manufacturing methods is carried out, it is extremely easy to inject the liquid transfer ink, and to quantify the liquid transfer ink to be occluded in the porous occlusion body,
In addition, if local exposure exists in the porous occlusion body, a means capable of absorbing the liquid transfer ink into the porous occlusion body is used. In addition to reducing the cumbersome process of removing excess liquid transfer ink, a fixed amount of liquid can be used in any of the steps from molding of the porous occlusion body to completion of assembly with accessories. The transfer ink can be occluded in the porous occlusion body, and overall productivity can be greatly improved.

Moreover, the amount of ink injected into the porous occlusion body is always constant, and the injected liquid transfer ink can be diffused and absorbed uniformly in a short period of time over the entire porous occlusion body. However, not only the productivity can be improved, but also the supply amount of the liquid transfer ink transferred from the porous occluder to the ink ribbon or the typeface can be stabilized, and the change in the image density over time can be suppressed. Very little quality can be provided.

When two or more of the above-described manufacturing methods are combined, there is an effect that the liquid transfer ink injected into the porous occlusion body can be uniformly diffused and absorbed throughout the porous occlusion body in a shorter time. .

Furthermore, in carrying out each of the above-described manufacturing methods, when the above-described method is employed, it is possible to occlude the homogeneous liquid transfer ink even microscopically, so that the diffusion and absorption of the liquid transfer ink can be more quickly performed. There are effects that can be achieved.

In addition, when the above method is employed, there is an effect that a predetermined injection operation can be performed quickly and easily even under the condition that the exposed portion of the porous occlusion body is very small.

In addition, when the above method is adopted, there is an effect that it is possible to prevent the working environment from being deteriorated due to the adhesion of the ink to the workers and the assembly equipment.

〔Example〕

Hereinafter, a method of manufacturing a liquid transfer ink replenishing member according to the present invention will be described.

As shown in FIGS. 3 and 4, an ink ribbon cartridge which is an example of an ink supply structure used in this manufacturing method has a pair of left and right ribbon guide arms (1A) and (1B) integrally formed. The main body case (1) is made of a resin, and a lid (2) made of a synthetic resin for closing an opening of the main body case (1).
The ink ribbon (R) stretched between (A) and (1B) can be printed by an impact dot head (not shown).

The main body case (1) is formed with a ribbon storage section (3) that is long in the left and right directions. A pair of feeders for applying a driving force to the ink ribbon (R) are provided at the entrance side of the ribbon storage section (3). Rolls (4) and (5) are provided, and by driving rotation of the feed rolls (4) and (5), the ribbon accommodating portion (3) is folded while the ink ribbon (R) is folded.
It is designed to be stored inside.

In addition, as shown in FIG. 4, the ribbon storage section (3)
A long and thin ink tank (A) is detachably provided on the left and right between a partition wall (6) for forming a partition and a side wall (1C) of the main body case (1).

This ink tank (A) is capable of impregnating a liquid transfer ink at room temperature into a synthetic resin ink storage case (7) having a ventilation hole (7a) formed therein, and the ink storage case (7). Is filled with a porous occlusion body (8) formed in a shape similar to the inner surface shape.

Further, between the one end face of the porous occlusion body (8) on the side where the two feed rolls (4) and (5) are present and the inner surface of the side wall of the ink storage case (7) opposed to the one end face, An ink-impregnable application member (9) such as felt which comes into contact with the porous occlusion body (8) is interposed.

The coating member (9) is provided with the ink storage case (7).
The protruding end is elastically pressed against the drive-side feed roll (4), and is impregnated into the porous occlusion body (8). The transferred liquid transfer ink is configured to be transferred to the ink ribbon (R) via the application member (9) and the feed roll (4) on the driving side.

As the porous occlusion body (8), a nonwoven fabric, a resin sponge, a metal sponge, a porous ceramic, or the like can be appropriately used.

The liquid transfer ink is mineral oil, synthetic oil, animal and vegetable oil,
Disperse and mix dyes and pigments as colorants and other image-forming materials with other oily substances as main components,
It is adjusted to have a viscosity of about 0 to 500 cps.

Next, a method for manufacturing the ink tank (A) will be described.

First, as shown in FIG. 1, the porous occlusion body (8)
And an ink storage case (7) containing the application member (9)
Is set in a state where the ventilation hole (7a) is located upward, and a certain amount of the liquid transfer ink (a) required for the porous occlusion body (8) to be occluded is sucked into the syringe (10). . And the injection needle (10a) of this syringe (10)
Is penetrated into the porous occlusion body (8) through the vent hole (7a), and the liquid transfer ink (a) in the syringe (10) is injected into the porous occlusion body (8).

Next, as shown in FIG. 2, a large number of the ink storage cases (7) after the ink injection are stored in the storage container (1) of the thermo-hygrostat.
1) Lay and store in the same position as when ink was injected.

This constant temperature and humidity apparatus measures the temperature and humidity in the storage container (11) during a predetermined time set by the timer (12) by the temperature and humidity set by the temperature setter (13) and the humidity setter (14). The air handling unit (18) is controlled by the control unit (17) to which the detection signals of the temperature sensor (15) and the humidity sensor (16) provided in the storage container (11) are input so that the humidity becomes the same. The inside of the storage container (11) is set to a high temperature atmosphere by setting operations of the temperature setter (13) and the humidity setter (14).

The ink storage case (7) is stored for a predetermined time under such a high temperature atmosphere, and the liquid transfer ink (a) injected into the porous occlusion body (8) in the ink storage case (7) is subjected to the storage. Almost uniformly diffused and absorbed throughout the porous occlusion body (8).

Due to storage in this high temperature atmosphere, normal
Since the viscosity of the liquid transfer ink (a) having a viscosity of about 0 to 500 cps can be reduced to about 100 cps, the injected liquid transfer ink (a) can be uniformly spread over the entire porous occlusion body (8) in a short time. Can be diffused and absorbed.

In the experiment, a good result was obtained by storing in a high temperature atmosphere of 50 ° C. for 2 hours.

The ambient temperature is preferably set to a temperature range where the components of the liquid transfer ink (a) are not separated.

When the storage under the high temperature atmosphere is completed, the ink storage case (7) is assembled to a predetermined position in the main body case (1) as shown in FIGS. After that, the opening of the main body case (1) is closed by the lid (2) to manufacture an ink ribbon cartridge.

 Next, another embodiment will be described.

[I] Second Embodiment In the manufacturing method shown in FIG. 5, a large number of the ink storage cases (7) after the ink is injected are stored in a storage container (21) provided with a far-infrared heater (19) and a decompression device (20). ) Are stacked and stored in the same posture as when ink is injected.

Inside the storage container (21), the far-infrared heater (19)
Is set to a high temperature atmosphere, and is set to a reduced pressure atmosphere by the pressure reducing device (20).

The pressure reducing device (20) includes a vacuum pump (20a), a pressure sensor (20b) for measuring a pressure in the storage container (21),
A setting device (20c) for setting the pressure in the storage container (21), and a drive control of the vacuum pump (20a) based on a detection signal of the air pressure sensor (20b) and a setting signal of the setting device (20c). It is composed of a control unit (20d).

By storing the ink storage case (7) in a high-temperature atmosphere and a reduced-pressure atmosphere for a predetermined time, the liquid transfer ink injected into the porous occlusion body (8) in the ink storage case (7). (A) is diffused and absorbed substantially uniformly throughout the porous occlusion body (8).

In particular, as described above, when the porous occlusion body (8) after occlusion of the liquid transfer ink (a) is exposed to a reduced pressure atmosphere, the gas components dissolved in the liquid transfer ink (a) And the air in the minute voids existing inside the porous occlusion body (8) is smoothly discharged to the outside, the permeation inhibition by these is eliminated, and the pressurization when removing from the reduced-pressure atmosphere causes This makes it possible to occlude the ink uniformly even microscopically.

[II] Third Embodiment In the manufacturing method shown in FIG. 6, a large number of the ink storage cases (7) after ink injection are provided by an ultrasonic generator (22) having a high-frequency oscillator (22a) and a vibrator (22b). The storage container (23) provided with (22) is stacked and stored in the same posture as when ink is injected.

Then, the liquid transfer ink (a) injected into the porous occlusion body (8) in the ink storage case (7) is stored for a predetermined time while applying ultrasonic waves to the ink storage case (7). Almost uniformly diffused and absorbed throughout the porous occlusion body (8).

When stored for a predetermined time while applying ultrasonic waves in this manner, the contact frictional resistance between the porous occlusion body (8) and the liquid transfer ink (a) injected therein can be significantly reduced, and Since the viscosity of the liquid transfer ink (a) itself can be reduced, the liquid transfer ink (a)
Can be uniformly diffused and absorbed in the entire porous occlusion body (8) in a short time.

[III] Fourth Embodiment In the manufacturing method shown in FIG. 7, a large number of the ink storage cases (7) after ink injection are formed by using an induction heating device (24) having a heating coil (24a) and an inverter circuit (24b). ) Are stacked and stored in the storage container (25) provided with the same posture as that at the time of ink injection.

Then, a high-frequency electromagnetic wave is applied to the ink storage case (7), and the ink is injected into the porous occlusion body (8) in the ink storage case (7) by utilizing an induction heating effect by an alternating electric field generated between the electrodes. The liquid transfer ink (a) is stored for a predetermined time while being heated, so that the liquid transfer ink (a) is diffused and absorbed substantially uniformly throughout the porous occlusion body (8).

[IV] Fifth Embodiment In the manufacturing method shown in FIG. 8, a large number of the ink storage cases (7) after ink injection are formed by a spring (27a) supporting the mounting table (26) and an elasticity of the spring (27a). A storage container (28) provided with a vibration device (27) including a solenoid (27b) for absorbing the mounting table (26) against the force described above.
It is stored in a stacked state.

The ink storage case (7) is stored for a predetermined time while being vibrated, and the ink storage case (7) is vibrated.
The liquid transfer ink (a) injected into the porous occlusion body (8) therein is diffused and absorbed almost uniformly throughout the porous occlusion body (8).

When the liquid storage ink (a) injected into the porous occluder (8) is stored for a predetermined period of time while applying vibrations in this way, a fluid force for diffusion can be applied to the liquid transfer ink (a), Since the contact frictional resistance between the occluding body (8) and the liquid transfer ink (a) injected into the occluding body (8) can be reduced, the liquid transfer ink (a) can be spread over the entire porous occluding body (8) in a short time. It can be diffused and absorbed uniformly.

[V] Sixth Embodiment In the manufacturing method shown in FIG. 9, the transport device (29) for transporting the ink storage case (7) passes through the air holes (7a) of the ink storage case (7) during the transportation. An ink automatic supply device (30) for automatically supplying a predetermined amount of the liquid transfer ink (a) to the porous occlusion body (8), and an ink storage case (7) after the ink injection is maintained for a predetermined time in a high-temperature atmosphere. A heating device (31) for storage is provided to automate the ink occlusion process.

[VI] In the above embodiment, an ink tank type in which the porous storage body (8) and the application member (9) are stored in the ink storage case (7) has been described as an example. The occlusion body (8) may not be housed in the case. For example, an ink roll provided in contact with the feed roll (4) or the ink ribbon (R) may be used.

[VII] Two or more of the above manufacturing methods may be combined and carried out.

Further, in the above-described embodiment, the structure for supplying the liquid transfer ink to the ink ribbon (R) has been described. However, the technology of the present invention can also be applied to a structure for supplying the liquid transfer ink to the typeface.

Further, the injection timing of the liquid transfer ink may be any of the steps from after the molding of the porous occlusion body (8) to after the assembly with the accessory is completed.

[VIII] The shapes of the ink storage case (7), the porous occlusion body (8), and the application member (9) can be variously changed according to various conditions, and are formed in the ink storage case (7). The formation position and shape of the vent hole (7a) can be variously changed.

Further, in the above embodiment, the liquid transfer ink (a) occluded in the porous occlusion body (8) in the ink storage case (7) is replenished to the application member (9) smoothly. The liquid transfer ink (a) was injected into the porous occlusion body (8) using the air holes (7a) formed in the ink storage case (7). May be formed.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the structure shown in the attached drawings.

[Brief description of the drawings]

1 to 4 show an embodiment of a method of manufacturing a liquid transfer ink replenishing member according to the present invention. FIG. 1 is a cross-sectional view at the time of injecting the liquid transfer ink, FIG. FIG. 3 is an exploded perspective view of the ink ribbon cartridge at the time of assembly, and FIG.
The figure is a partially cutaway plan view of the assembled ink ribbon cartridge. 5 to 9 are explanatory views showing different manufacturing methods. (R): ink ribbon, (a): liquid transfer ink,
(7) ... case, (8) ... porous occlusion body, (10a)
……Needle.

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Shoji Tada 4-8-43 Utajima, Nishiyodogawa-ku, Osaka-shi, Osaka Fuji Chemical Paper Industries Co., Ltd. Osaka Plant (56) References Japanese Utility Model Reference U) Actual opening Sho-59-196290 (JP, U)

Claims (8)

(57) [Claims] 1. A method of manufacturing a liquid transfer ink replenishing member for replenishing a fixed amount of a liquid transfer ink (a) at normal temperature to an ink ribbon (R) or a type body, wherein a porous occlusion body formed into a predetermined shape is provided. A predetermined amount of the liquid transfer ink (a) is injected into (8), and thereafter, the liquid transfer ink (a) is stored under a high-temperature atmosphere for a predetermined period of time, so that the liquid transfer ink (a) is completely removed from the porous occlusion body (8). A method of manufacturing a liquid transfer ink replenishing member for diffusing and absorbing the liquid transfer ink substantially uniformly. 2. A method for producing a liquid transfer ink replenishing member for replenishing a fixed amount of a liquid transfer ink (a) at normal temperature to an ink ribbon (R) or a type body, comprising a porous occlusion body formed into a predetermined shape. A predetermined amount of the liquid transfer ink (a) is injected into (8), and thereafter, the liquid transfer ink (a) is stored for a predetermined time while applying ultrasonic waves, so that the liquid transfer ink (a) is entirely removed from the porous occlusion body (8). A method of manufacturing a liquid transfer ink replenishing member for diffusing and absorbing the liquid transfer ink substantially uniformly. 3. A method of manufacturing a liquid transfer ink replenishing member for replenishing a fixed amount of a liquid transfer ink (a) at room temperature to an ink ribbon (R) or a type body, wherein a porous occlusion body formed into a predetermined shape is provided. A predetermined amount of the liquid transfer ink (a) is injected into (8), and thereafter, a predetermined amount of the liquid transfer ink (a) is heated while applying a high-frequency electromagnetic wave to the porous occlusion body (8). A method for manufacturing a liquid transfer ink replenishing member, wherein the liquid transfer ink (a) is diffused and absorbed substantially uniformly over the entire porous occlusion body (8) after being stored for a time. 4. A method of manufacturing a liquid transfer ink replenishing member for replenishing a fixed amount of a liquid transfer ink (a) at room temperature to an ink ribbon (R) or a type body, the porous occlusion body formed into a predetermined shape. (8) A predetermined amount of the liquid transfer ink (a) is injected into the porous transfer member (8). Then, the porous transfer member (8) is stored for a predetermined time while applying vibration to the liquid transfer ink (a). A method of manufacturing a liquid transfer ink replenishing member that diffuses and absorbs substantially uniformly over the entirety of the porous occlusion body (8). 5. The liquid according to claim 1, wherein the porous occluder (8) after storing the liquid transfer ink (a) is stored under reduced pressure atmosphere during the storage period. A method for manufacturing a transfer ink supply member. 6. The method for manufacturing a liquid transfer ink replenishing member according to claim 1, wherein the injection of the liquid transfer ink (a) uses an injection needle (10a). 7. The liquid according to claim 1, wherein the porous occlusion body (8) is housed in a predetermined case (7) before injecting the liquid transfer ink (a). A method for manufacturing a transfer ink supply member. 8. The method for manufacturing a liquid transfer ink replenishing member according to claim 1, wherein said porous occlusion body (8) is an ink roll.