JPS59203670A - Method and apparatus for manufacture of recording material - Google Patents

Abstract

PURPOSE:To certainly manufacture a recording material with excellent reproductivity, by reading information magnetically written in a supporting web having a transparent magnetic layer at a delivery part or just before application, and automatically setting the condition of application. CONSTITUTION:Information magnetically written in a supporting web 2 having a transparent magnetic layer is read by a reader head 16 provided at an applicator part 1, and the detachment-reattachment of an applicator head 13 and the condition of application are automatically set and controlled by a controller 17. That is, the controller 17 temporally stores the information read by the head 16, consults a signal from a rotary pulse oscillator 19 attached to an auxiliary roller 18 for reading at the same time, for instance, and sends controlling signals to the moving stand 20 of an applicator part, a vacuum pump P3, etc. synchronously with the running of the web 2. Hence, the condition of application is automatically set up and controlled, e.g. performing the detachment-reattachment of the head 13 along the arrow A on the basis of the controlling signal sent to the moving stand 20, stopping the vacuum pump P3 when the head 13 is under a condition separated from a backing roller 15 and restoring evacuation setting with the pump P3 when the head 13 is reattached to the roller 15.

Description

[Detailed description of the invention] The present invention relates to a method and apparatus for producing recording materials.

More specifically, a continuously running belt-shaped support (hereinafter referred to as "
It is called "web". ) proposes an improvement in the process of coating a recording layer such as a photographic emulsion.

Photographic film, photographic paper, and magnetic materials are coated with various coating solutions on supports such as plastic film and paper, and dried to obtain the desired product.

Manufacturing tubes for pressure-sensitive recording paper and heat-sensitive recording paper are widely used in various manufacturing industries.

In such manufacturing processes, responses to problems such as web joining, failures, width dimensions, thickness dimensions, etc. are generally carried out manually by operators based on information written on slips, etc., which may be inaccurate and It has poor productivity, is inefficient, and hinders improvement in so-called yield.

For example, some attempts have been made to detect the joint of the web optically or pattern-wise just before the application site, activate a timer, etc., and move the coating head as it passes through the joint.
71/-, however, there is no consideration given to malfunctioning parts, one step is missed, and it does not contribute to drastic process rationalization.

The present invention has been made in view of these actual circumstances, and can greatly streamline the manufacturing process of recording materials.

That is, one object of the present invention is to operate the application section automatically in response to web contact, δ, failure, width dimension, thickness dimension, etc.
It is an object of the present invention to provide a method and apparatus for manufacturing a recording material that can be published without stopping the manufacturing process with reliability and good reproducibility.

Another object of the present invention is to provide a method and apparatus for producing a recording material that is efficient and can be expected to improve yield.

The above-mentioned object of the present invention is characterized in that information magnetically written on a support web having a transparent magnetic layer is read at the delivery section or immediately before coating, and web conveyance and/or coating conditions are fully automatically set. This is achieved by a method and apparatus for producing a recording material.

The contents of the present invention will be explained in more detail with reference to the drawings.

FIG. 7 shows a recording material according to the present invention (in which information magnetically written on a support web having a transparent magnetic layer is read immediately before application and coating conditions are automatically set). Fig. 1 (d
In addition, all coating parts are equipped with reading heads that read π information magnetically written on the support web, and controllers that automatically set and control the read information (detachment/reattachment of the coating head and coating conditions) are installed. It is also an embodiment drawing of a recording material manufacturing apparatus having the following features.

In FIG. 1, the support web λ having a transparent magnetic layer is fed out from the raw roll 3 at the feeding section/, and the coating section≠・set zone! - After passing through the drying zone B, it is wound up at the winding section 7 as an intermediate product roll g. In the coating section G, for example, in a steady state, the coating liquid ////2, which is fed in a fixed amount from a liquid tank (not shown) through piping 1o-2 by pumps P1 and P2, is transferred to the coating head /3. It flows down the slide surface in a layered manner and is applied to the support web λ at the bead portion /≠. 1s (r+L is a packing roll for the coating area), and 21 is a depressurizing chamber, where the vacuum pump P3 brings the area into a depressurized state to keep the bead area/4i stable. These steps are generally well known.

In this embodiment, a reading head /Ai is provided in the coating section l, which reads the information magnetically written into the support web λ having a transparent magnetic layer, and causes the controller /7 to detach the coating head 13.・Repositioning and application conditions are fully automatically set and controlled. That is, the controller 17 temporarily stores the information read by the reading head/6 and reads the information from the support web by referring to a signal from a rotating ZR117 oscillator coaxially attached to the reading auxiliary roller/g. A control signal is sent to the application section moving table 20--vacuum pump P3, etc. in synchronization with the movement of. For example, the coating head 3 is detached and reattached in the direction of arrow A by the control signal sent to the coating unit moving table 20, and the coating head 3 is in a state where it is detached from the sliding roller. At one point, vacuum pump P3? ! l-Stop or rotate? Extremely low.

When the coating head 13 is moved against the backing roller /j, the coating conditions are automatically set and controlled by, for example, setting the vacuum pump P3 to reduce the pressure. 2/-2, 2 is a reading auxiliary roller/g, and the webco winding has an increased angle, and is a 7-lead roller for accurate reading and grasping of web travel information, and 23, 2≠, and 2 are generally This is the no.ξ roller used.

In this example, the support web λ having a transparent magnetic layer is
The information magnetically written into the web λ is contact information or failure information related to the longitudinal position of the web λ. Then, the coating head 13 is removed.

The work of changing the pressure reduction setting of the vacuum pump P3 can be carried out automatically, reliably and with good reproducibility.For example, in a steady state, the tip of the coating head'/3 and the support web 2 The spacing is 2.TOμm, the decompression chamber, Z&
Figures λ and 3 show that the coating is carried out at a vacuum level of 130 m, a 7 nm water column, and a speed of 60 rr per minute. 1 is a drawing showing an embodiment of a method for manufacturing a recording material, characterized in that information written in the recording material is read by a sending section and coating conditions are automatically set. Figures 2 and 3 are also shown.

The feeder is equipped with a reading head that reads information magnetically written on the support web, and the position of the application head is automatically set and controlled based on the read information.
It is also a drawing of a practical example of a recording material manufacturing apparatus characterized by being equipped with a rack.

In FIG. 2, at a feeding section, a support web 2 having a transparent magnetic j-mark is fed out from a raw roll 3 to a coating section ke/set zone! - After passing through the drying zone B, it is wound up as a medium product roll in the winding section 7. In the application part≠1, for example, in a steady state, a constant feed pump P1, P2K, c-shaped pipe, from a liquid tank (not shown), 1
The coating liquid sent through 0//.../2 is applied to the coating head/
3 slides are flowed down in layers and applied to the support web 2 at the bead portion/μ.

In the case where the true fruit is 0, as shown in Figs. 2 and 3 -
The feeding section is equipped with a reading head, which reads all the information magnetically injected into the support web λ having a transparent magnetic layer.
Automatically set the position of rare to control. In other words, the controller/7 has the reading head/7 loaded with data.
Send all the installation control signals to the applicator moving table 20, mainly to the third
The entire position of coating head/3 is controlled in the direction of arrow B and the direction of arrow A in the figure. In this example, the information magnetically written into the support web λ having the transparent magnetic layer is failure information related to the width and thickness dimensions of the web and the position in the longitudinal and width directions of the web. According to the present invention, the accurate position of the coating head is set in accordance with the width and thickness of the web, and it is possible to change the coating position in the width direction while avoiding a malfunctioning part. i.e. - the faulty part is Webco's l]
If it is near the end on the direction side, set the position of the coating head in the direction of arrow B so that the coating area marked diagonally a on the web λ in FIG. 3 does not include the failed part;
If the faulty part is located in the center of the web in the width direction, the setting control is performed in the direction of arrow B to move the coating head to a position suitable for removal during the subsequent cutting process, etc. in relation to the coating process. . Therefore, in this embodiment, the coating head position setting control is performed at relatively long intervals compared to the embodiment shown in FIG. Of course, in this embodiment as well, there may be cases in which similar control as in the embodiment of FIG. 1 is performed as a subsidiary in a short period of time. In FIGS. 2 and 3, other functional elements are the same as those described with respect to FIG. 1.

In the present invention, as the support web λ having a transparent magnetic layer, for example, those described in Japanese Patent Publication No. Sho 5o-itit No. 1 or Japanese Unexamined Patent Application Publication No. 3-10-1994 can be used. Also, Tokko Akira! 7-&! A transparent support for photographic film as disclosed in Japanese Patent No. 76 can also be used. It is preferable that the transparent magnetic layer is applied along the entire web 1 direction. Information/“1”
In order to input dimension information, thickness dimension information, and positional information that serves as a reference for these, it is necessary to place the information near the winding head in the film forming process or near the winding head in the undercoating process or back layer coating process. It is desirable to provide a cutting head.

The writing position on the web [ζ is in the width direction in the present invention. , f1 must be set corresponding to the head position, and it is desirable to repeat the setting at predetermined intervals in the longitudinal direction, or to repeat the setting cumulatively, especially regarding failure information. This information is encoded or digitized into analog or digital signals and written magnetically with the write head 1 - for example by pulse code modulation.

It is possible to write and read without errors with certainty.

Such support webs and associated information do not adversely affect the properties of the recording material.

In the present invention, the coating conditions include the position of the coating head and the degree of vacuum in the decompression chamber shown in the examples, as well as the liquid feeding conditions of the metering pump and the web end position controller (not shown).
It also includes web conveyance conditions such as P Cl = constant.

Furthermore, in the present invention, any of hydraulic, pneumatic, and electromechanical types may be employed as the coating head moving table 20.

The controller/7 can be either a contact type or a non-contact type, but it is preferable to use a non-contact type with memory and calculation ability, for example, a built-in microcomputer and a complete control output section.

The recording material in the present invention basically has a recording layer provided on a support, and the recording layer may include a photographic photosensitive layer, a magnetic recording layer, or other recording layers. There are various types depending on the purpose and use. For example, recording materials with a photographic light-sensitive layer include general photographic materials, microphotographic materials, radiation-sensitive materials, photographic materials for printing, photosensitive abrasive materials for scientific use, photographic paper, and thermal dust imageable photosensitive materials. There are many examples, such as laser recording materials sensitive to laser beams, magnetic recording tapes and magnetic recording films with magnetic recording layers.

The unexploded uJI recording material + r (o(-) support) is a stable support with a dimension of about 6, and its form is convenient for the handler when using a photosensitive material. In addition, it is preferably in the form of a sheet or a plate, and the magnetic recording material is preferably in the form of a tape law (d sheet, which is suitable for use as a recording material, or in the form of The object is exposed.And paper is used as the base of the support; 7
Kotoe is polyethylene and polypropylene-polystyrene and other heat-melting pluskick fully laminated paper-aluminum, various types of marminium, metal saving, zinc, iron~014
Any kind of metal plate, such as cellulose dichloromethane, cellulose butyrate, cellulose acetate butyrate, cellulose propionate-triacetate-cellulose, cellulose nitrate, polyethylene terephthalate, polypropylene, polycarbonate, polyvinyl acetal, etc. Films include paper or plastic films coated with a 4fJ layer or vapor-deposited metal as described above. The material of the support is also appropriately selected depending on the purpose and use of the recording material.

Also, as a record of the recording material) and as a shield, for example, the photosensitive layer of photosensitive forestry material may be a silver rodanide-gelatin emulsion, a photosensitive layer of a diazo resin, a photosensitive resin photosensitive layer, or other known materials. A large number of these are known and are used as the photosensitive layer of the photographic material of the present invention.

The same applies to laser recording materials and magnetic recording materials.
It is believed that there is no need for a detailed explanation of other information regarding the acquisition, materials, manufacturing and processing of these recording materials, as well as their respective recording processes and uses, if known techniques are utilized.

With the KL of the present invention, it is possible to automatically respond to problems such as web joining, failure, medium size and thickness, etc., operate all the thin parts, and continue manufacturing with certainty and good surface development, resulting in efficient and high yield. In addition to the expected improvement, the following secondary effects can also be expected.

(1) Monitoring and adjustment of the application section may be uneasy, so it is not possible to do so.

(2) One recording material can be manufactured without relying on so-called -55 slips.

(3) Since the support web K T ¥ is not included in the information, there is no misidentification.

(4) Since the support web is transported at a constant speed -
i): i'i; The increase/change code processing 33f4 can be performed easily and reliably.

(5) The device can have a relatively simple structure.

The present invention is not limited to the drawings of the embodiments, but can have a wide range of applications. In addition to slide bead coating, the oil can also be used for Hola/Mie slide coating and extrusion coating, and the idea of the present invention can also be applied to curtain coating, roller coating, and gravure coating.

[Brief explanation of the drawing]

FIG. 1 is a (ilj(5)) view of a device according to an embodiment of the present invention, FIG. 2 is a side view of another embodiment of the device, and FIG. 3 is a perspective view of its band. Feeding part 2...Support webge having a transparent magnetic layer...
...Applying section lB...Reading head 17...Controller 2q...Applying head moving table

Claims (3)

[Claims] (1) A method for producing a recording material, characterized in that information magnetically penetrated into a support web having a transparent magnetic layer is read at a delivery section or immediately before coating, and coating conditions are automatically set. . (2) The feeding section or coating section is equipped with a reading head that reads the information magnetically embedded in the support web, and the detachment and reattachment of the coating head and/or coating conditions are automatically determined based on the read information. A recording material manufacturing device characterized by being equipped with a controller for controlling settings. (3) The recording material packaging device according to claim 2, wherein the coating condition is that the coating position is straight in the width direction of the coating head.