KR20020071284A - Washing carrier sheet and washing roll - Google Patents

Abstract

PURPOSE: A washing carrier seat and a washing roll are provided to cleanly and automatically wash a roll without any spots in a short time, thereby resolving the safety problems due to the washing solution or the volatile organic solvent. CONSTITUTION: A washing carrier seat includes a washing layer(3) formed of an elastic layer and a surface layer(1) on a carrier seat(4) locally or entirely, wherein the surface layer is formed of a plurality of micro fiber elements(5) in the shape of brush hair on a surface of the elastic layer.

Description

Carrier sheet and washing roll for washing {WASHING CARRIER SHEET AND WASHING ROLL}

The present invention relates to a cleaning carrier sheet and a cleaning roll used in a printing press.

In many printing or painting (coating) systems, gravure printing machines, flexo printing machines and various coating machines are employed.

Therefore, in gravure printing or gravure coating, the printing ink or paint is transferred directly to the to-be-printed object or the to-be-printed object from the chain plate cylinder or mesh roll in which the image or engraving mesh was formed. The printing inks and paints used are flowable liquids containing aqueous or various organic solvents or low molecular weight oligomers, etc., depending on their respective use, and immediately after the end of printing or painting, the used cylinder plate or mesh When the roll cleaning operation is performed on the machine, the cleaner is sprayed directly onto these cylinders or rolls, and washed manually by using a cloth or a brush. Alternatively, these cylinders or rolls are removed from the machine body and cleaned by hand or a dedicated washing apparatus outside the machine. In addition, the washing | cleaning operation uses the washing | cleaning agent applied to the printing ink or paint used, for example, in the case of water-based ink, it is washing water containing water or an alcoholic organic solvent, or an alkali component, and an organic solvent-based ink and In the case of paint, the solvent containing the said organic solvent is used.

In flexographic printing, the ink is transferred to a to-be-printed object through an ink supply roll (anilox roll), and then transferred to a to-be-printed plate with a resin or rubber plate on which an image is formed. In the cleaning of the plated copper, the cleaning agent is directly sprayed on them, and cleaning is performed by manually or supplying the cleaning agent between the ink supply roll and the rotating nip of the transition roll.

To-be-cleaned rolls, such as gravure plate cylinders or ink supply rolls (anilox rolls), which are used according to the high precision of printed images and painting processes, become highly precise and fine, and ink clogging occurs more and more in their engraving cells. It becomes easy, and the tendency which the fall of the density | concentration of a printed image or the decrease of application amount arises becomes remarkable. Therefore, as in the related art, cleaning by manual labor on a machine or outside the machine puts a lot of burden on an operator and encourages an increase in man-hour. That is, in the case of the cleaning operation on a machine, in order to apply the cleaning agent by rotating the to-be-cleaned roll such as a plate cylinder or an ink supply roll, and to wash it with a cloth or a brush, the cleaning liquid splashes on an operator or In the case of washing | cleaning with a solvent, the volatile matter is absorbed and there are many problems in safety hygiene.

Furthermore, as the number of small lot shops in printing or painting work has become remarkable in recent years, in order to prevent a decrease in the operation rate of a printing press or a coating machine (coater), cleaning on the machine can be done as quickly and effectively as possible. It is preferable.

In addition, since the cleaning work outside the machine is similar to the cleaning on the machine, the worker is burdened with effort and labor, and there is a problem in hygiene management, so improvement is required. In particular, cleaning performed by using a dedicated cleaning device makes it difficult to clean the cost in accordance with the new burden on equipment costs.

Thus, the present invention provides a carrier sheet for cleaning, which can clean the to-be-cleaned roll efficiently without staining at low cost without using a human hand on a machine without installing a dedicated cleaning device which is expensive. It aims to do it.

In addition, the present invention is a cleaning that can be cleaned without stains efficiently at low cost without using a human hand on the machine, without having to install a dedicated high-cost cleaning device in exchange for plate or pressure The purpose is to provide a roll.

1 is an enlarged cross-sectional view showing one embodiment of the present invention;

2 is an enlarged cross-sectional view of a main portion;

3 is an enlarged cross-sectional view of the present sheet;

Figure 4 is a perspective view as well as explaining the attachment of the sheet;

5 is a perspective view of the bone roll;

6 is an explanatory diagram of use in a flexographic printing press;

7 is an explanatory diagram of use in a gravure printing machine.

"Description of Symbols for Major Parts of Drawings"

One; Surface layer 2; Elastic layer

3; Cleaning layer 4; Carrier sheet

5; Ultrafine fibers 11; Cylindrical sleeve

20; Pandong 21; Pressure

22; Clean roll

In order to achieve the above object, the cleaning carrier sheet according to the present invention partially or entirely adheres a surface layer having a plurality of ultrafine fibers on the surface thereof in a brush hair shape, and a cleaning layer formed by laminating an elastic layer to the carrier sheet. It is.

Moreover, the cleaning roll which concerns on this invention is wound up by exchanging the surface layer which has many microfine fiber bodies in the surface of a brush-shape, and an elastic layer in the laminated shape in the cylindrical sleeve, and exchanged with the printing or press of a printing press, It is comprised so that the to-be-cleaned roll which opposes this board | plate or pressure may be wash | cleaned.

In addition, the surface layer having a plurality of microfibers on the surface in a brush-like shape, and the elastic layer is partially attached to the cylindrical sleeve in a laminated shape, and is attached in exchange with the plate or press of the printing machine, and is attached to this plate or plate. It is comprised so that the opposite to-be-cleaned roll may wash | clean.

(Embodiment of invention)

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated based on drawing which shows embodiment.

1 to 3 show one embodiment of an embodiment of a cleaning carrier sheet (used for a printing machine) according to the present invention, wherein the surface layer 1 having a plurality of ultrafine fibers 5... ) And the cleaning layer 3 formed by laminating the elastic layer 2 to the carrier sheet 4 partially or entirely.

Specifically, rubber or plastic forming material-the hardness of which is harder than the elastic layer 2 and the forming material of 40 degrees to 70 degrees in Showa A-is obtained by mixing a plurality of ultrafine fibers (5 ...). The surface layer (1) made of a mixed material is laminated by bonding or compounding with a softer than the elastic layer (2) of the rubber or plastic (surface layer 1) and 30 to 50 degrees phosphorus in Showa A. 3) form.

Then, by polishing the surface layer 1 (one surface), the ultrafine fibrous body 5... Protrudes from the surface in a bristle shape to form the bristle shape projections 7. At this time, the surface layer 1 is provided with fine holes 6... That become traces of the ultrafine fiber bodies 5... Drawn out by polishing. In addition, in the surface layer 1, the ratio of the volume of the ultrafine fiber body 5... To the volume of the rubber or plastic forming material is set to 40% to 60%. That is, when the volume ratio is less than 40%, the bristle protrusions 7... Can not be formed sufficiently, and when the ratio exceeds 60%, the ultrafine fibers 5. This is because the fiber bodies 5... Come off a lot, or the strength of the surface layer 1 is lowered.

Then, the cleaning layer 3 (one surface of the elastic layer 2) is partially or entirely attached to the carrier sheet 4, which is a sheet made of plastic or metal, with an adhesive layer 8 such as a double-sided tape or an adhesive. The sheet 9 is formed.

Then, the present sheet 9 (as shown in Fig. 4) is attached (rewinded) to the plate cylinder 20 or the presser 21 of the printer (partially or entirely), thereby (Fig. 6 (b) and Fig. 7). As shown in (b), it is used for the purpose of cleaning the to-be-cleaned roll 22 (such as an ink supply roll or a gravure plate cylinder) facing the plate 20 or the pressure 21.

In more detail, the elastic layer 2 is made of rubber or plastic having organic solvent resistance or acid resistance, alkali resistance or chemical resistance which is durable against various cleaning agents, for example, nitrile butyl rubber (NBR). ), Vinyl chloride resin (PVC), ethylene propylene rubber (EPT), and the like, and rubber or plastics other than these may be used. Then, the thickness dimension T ₂ of the elastic layer 2 is set to 3 mm to 10 mm-used as standard, but may be any thickness dimension-and the hardness is JIS-A hardness 30 degrees to 50 degrees. Set it. Therefore, it becomes high elasticity, has compressive distortion resistance, and can press the surface layer 1 laminated | stacked on the elastic layer 2 to the to-be-cleaned roll 22, and can be made to dig.

The surface layer 1 sets the thickness dimension T ₁ to 1 mm-4 mm, and sets hardness to JIS-A hardness 40 degree-70 degree. Therefore, it can withstand the friction with the to-be-cleaned roll 22, and can be dug into the cell inside of the to-be-cleaned roll 22. FIG.

The length dimension of the bristle projections 7... Of the surface layer 1 (polishing surface) of the surface layer 1-the dimensions protruding from the surface of the surface layer 1 are different from each other, and the bristle projections 7 are different from each other. ... are protruded so as to face in arbitrary directions, respectively. The average length dimension of this brush bristle protrusion 7 ... is set to 0.1 mm-10 mm. Here, the average length dimension is defined as the average value of the length dimensions of the plurality of bristles 7. That is, if the average length dimension is less than 0.1 mm, at the time of cleaning, the tip of the bristle protrusions 7... Does not reach the bottom of the fine concave portion of the to-be-cleaned roll 22, so that the cleaning effect is lowered and the average length is also reduced. This is because when the dimension exceeds 10 mm, the stiffness of the bristle protrusions 7... Reduces the cleaning effect.

Further, the ultrafine fibrous bodies 5... Which form the brush bristle protrusions 7... Are made of synthetic fibers or ultrafine short fibers made of metal, and the thickness thereof is set to 2denyl to 10denyl. That is, if less than 2 deniers, fiber breakage and rigidity are lacking, and if it exceeds 10 deniers, the ink of the thin part of the to-be-cleaned roll 22 cannot be dropped, and life will be short.

The ultrafine fiber body 5 is preferably a strong fiber having high solvent resistance, and may also use metallic fibers such as nickel, steel, brass or stainless steel, even in chemical fibers such as polyester and nylon. . Then, the ultrafine fibrous body (5) is mixed with rubber or plastic having chemical resistance, and mixed and beat, and then vulcanized in the case of rubber and cured in the case of plastic, and then the surface is polished and the thickness is The surface layer 1 is formed by projecting the bristle protrusions 7...

Then, the cleaning layer 3 (one surface of the elastic layer 2 of the) formed by laminating the surface layer 1 and the elastic layer 2 is a carrier sheet 4-for example, a thickness dimension of 100 µm to several hundred µm. This sheet 9 is formed by laminating (partially to totally) on a polyester sheet of.

As shown in FIG. 4, the present sheet 9 attaches (or partially to) the carrier sheet 4 (one surface) to the plate cylinder 20 or the press 21 of the printer (or rolls). In the shape of a sheet, and the sheet 9 can be easily attached to the plate 20 or the pressing 20 to clean the to-be-cleaned roll 22 on a printing press. That is, the to-be-cleaned roll 22 (such as an ink supply roll or a gravure plate cylinder) which opposes the plate 20 or the pressure 21 can be wash | cleaned.

Specifically, Fig. 6 shows a case in flexographic printing, and as shown in Fig. 6 (a), the ink (paint) passes through an ink supply roll (which becomes the to-be-cleaned roll 22). Then, it is transferred to the plate 20, and is transferred from the plate 20 to the to-be-printed object 23 (such as cardboard). In addition, the presser 21 is arranged so as to face the plate 20, and presses the to-be-printed object 23 to the plate 20 to ensure printing to the to-be-printed object 23.

And the ink supply roll of the flexographic printer comprised in this way is wash | cleaned as the to-be-cleaned roll 22. As shown in FIG. That is, as shown in FIG.6 (b), this sheet | seat 9 is affixed on the plate | board 20 which opposes the to-be-cleaned roll 22, and it rotates in contact with the to-be-cleaned roll 22, and between the nips Alternatively, a low-volume cleaning agent such as flexo clean spurs or flexo clean (HD) (manufactured by Flexo Clean Engineering Co., Ltd.) is introduced into the ink supply container, and contact rotation cleaning is performed. Therefore, washing | cleaning can be skipped by manual labor.

In addition, Fig. 7 shows the case in gravure printing or gravure coating, and as shown in Fig. 7 (a), the ink is directly cleaned from the gravure plate cylinder (which becomes the toner roll 22). Transition to (22). In addition, the presser 21 is arranged so as to face the gravure plate cylinder 22, presses the to-be-printed object 23 to the gravure plate cylinder 22, and makes sure to print to the to-be-printed object 23.

And the gravure plate cylinder of the gravure printing machine comprised in this way is wash | cleaned as the to-be-cleaned roll 22. As shown in FIG. That is, as shown in FIG.7 (b), this sheet | seat 9 is affixed to the press 21 which opposes the to-be-cleaned roll 22, and rotates in contact with the to-be-cleaned roll 22, and between the nips Alternatively, a low-volume cleaning agent such as flexo clean spurs or flexo clean (HD) (manufactured by Flexo Clean Engineering Co., Ltd.) is introduced into the ink supply container, and contact rotation cleaning is performed. Therefore, the manual washing can be omitted.

Next, as an embodiment of the sheet, the sheet is wound on a printing copper (ie, a sheet copper) of a sheet corrugated sheet printing machine (e.g., a Summit 100 type press manufactured by Mitsubishi Heavy Industries, Ltd.) and brought into contact with an anilox roll serving as a roll to be cleaned. .

The sheet is formed by attaching a 7 mm cleaning layer with a 0.15 mm double-sided tape (adhesive layer) to a 0.15 mm polyester sheet (carrier sheet), and a low volatility cleaning agent (e.g., Flexo clean spurs) are apply | coated enough, or water and mixed water are circulated in a machine with a circulation hose, and a washing | cleaning is performed.

In addition, as a conventional example, cleaning was carried out by hand washing a brush with a cleaning agent or by circulating the washing water in a machine.

As a result, in the conventional example, the cleaning time took about 40 to 50 minutes on average. In the examples of this sheet, the cleaning time was about 5 to 10 minutes, and the cleaning time was shortened. In addition, in the conventional example, it was easy to generate | occur | produce the cleaning stain on the to-be-cleaned roll, and the cleaning effect was not enough, In the Example of this sheet, the to-be-cleaned roll can be completely wash | cleaned, eliminating the manual cleaning, and it is clean without a stain. It can be cleaned.

Next, the cleaning roll of the present invention will be described. As shown in FIGS. 1, 2, and 5, the roll 10 includes a surface layer having a plurality of ultrafine fibers 5... (1) and the elastic layer (2) are laminated (or partially attached) to the cylindrical sleeve (11) in a stacked shape, and are exchanged and attached to the plate (20) or the press (21) of the printing press. 20) Or it is comprised so that the to-be-cleaned roll 22 which opposes the pressure 21 may be wash | cleaned. In addition, since the code | symbol same as code | symbol described in this sheet 9 has shown the same structure, description is abbreviate | omitted.

That is, the washing layer 3 (one surface of the elastic layer 2 of) formed by laminating the surface layer 1 and the elastic layer 2 is wound on the outer circumferential surface of the cylindrical sleeve 11 and rolls seamlessly (seamless). It processes to a shape, grinds the outer peripheral surface (namely, the surface layer 1) of the washing | cleaning layer 3, and the main roll 10 is formed. The cleaning layer 3 may be attached (partially or entirely) to the cylindrical sleeve 11 with an adhesive double-sided tape or an adhesive.

The cylindrical sleeve 11 is made of metal such as FRP (glass fiber reinforced plastic), CFRP (carbon fiber reinforced plastic), nickel, or the like.

And when this bone roll 10 is used for a flexographic printing machine, as shown to FIG. 6 (c), the bone roll 10 is also used by air pressure or hydraulic pressure (FIG. 6 (c)). Attach in exchange for the copper plate (20).

Then, it is brought into contact rotation with the to-be-cleaned roll 22, and a low volatility or nonvolatile cleaning agent is attached or sprayed between the nips to perform contact rotation cleaning. Therefore, washing by hand can be skipped and washing can be performed quickly.

In addition, when this bone roll 10 is used for the gravure printing or the gravure coating printer, as shown in FIG.7 (c), the bone roll 10 is made into air pressure or hydraulic pressure (FIG. 7). It is attached in exchange with the pressure 21 (shown in (a)).

Then, it is brought into contact rotation with the to-be-cleaned roll 22, and a low volatility or nonvolatile cleaning agent is attached or sprayed between the nips to perform contact rotation cleaning. Therefore, washing by hand can be skipped and washing can be performed quickly.

Next, as an example of this roll, the sleeve-type pressure | pressure applied to the press part of the gravure coater of a dry laminator (for example, Okazaki Machine Industries Co., Ltd.) is detachably replaced by this roll and air pressure, and this roll Was rotated in contact with the plate cylinder of the gravure coater serving as the roll to be cleaned.

In addition, a low volatility cleaning agent (eg, flexo clean spur) was washed between the main roll and the nip of the roll to be cleaned by inflow contact rotation.

Moreover, as a conventional example, the pressure and the to-be-cleaned roll were isolate | separated, the organic solvent was spread | dispersed directly only to the to-be-cleaned roll, and the washing | cleaning by manual labor was performed using the cloth or the brush.

As a result, in the conventional example, while the cleaning time took about 20 to 30 minutes on average, in the embodiment of the present roll, the cleaning time can be cleaned in about 5 to 10 minutes, and the cleaning time can be shortened. In addition, in the conventional example, while the whole surface of the to-be-cleaned roll was not completely cleaned completely, in the embodiment of this roll, the adhesive etc. which were clogged of the cell of the to-be-cleaned roll can be removed completely, and washing by hand is performed. Omitted to be clean without stains.

In addition, this invention is not limited to the above-mentioned embodiment, You may attach this sheet | seat 9 to the cylindrical sleeve 11, and may form the bone roll 10, and does not deviate from the summary of this invention. The design can be changed within the range.

This invention exhibits the following remarkable effects by the said structure.

(According to Claim 1) The sheet can be attached to a roll (panel or pressure plate) facing the to-be-cleaned roll, and the to-be-cleaned roll can be easily cleaned. Moreover, since many ultrafine fiber bodies 5 ... have a bristle shape, it can enter inside the cell of a to-be-cleaned roll and can reliably wash | clean. In this way, it is inexpensive without providing a large amount of dedicated washing apparatus. In addition, it can be cleaned without the use of human hands, requires no effort or labor, and the cleaning liquid does not splash on workers or absorb volatilized organic solvents, and there is no problem of safety and hygiene. Moreover, it can wash | clean on a printing press and can wash | clean cleanly without a stain in a short time.

(According to claim 2) The roll is simply cleaned by replacing the roll with the plate 20 or the press 21 of the printer, and the to-be-cleaned roll 22 facing the plate 20 or the press 21 is easily cleaned. can do. In this manner, it is inexpensive without providing a large amount of dedicated washing apparatus. In addition, it can be cleaned without the use of human hands, requires no effort or man-hours, and the cleaning liquid does not splash or absorb volatilized organic solvents for workers and has no problem in safety and hygiene. Moreover, it can wash | clean on a printing press and can wash | clean cleanly without a stain in a short time. In response to the small lot of printing operations, cleaning can be completed on a printing press quickly and effectively, and the operation rate of the printing press is improved. Moreover, this roll is easy to manufacture, and it is sure that there exists sufficient stability.

(According to Claim 3) By simply replacing the roll with the plate 20 or the press 21 of the printing press, the to-be-cleaned roll 22 facing the plate 20 or the press 21 can be easily cleaned. have. In this way, it can be made cheap without providing a large amount of dedicated washing apparatus. In addition, it can be cleaned without the use of human hands, requires no effort or labor, and the cleaning liquid does not splash on the worker and does not absorb volatilized organic solvents, thereby eliminating safety and hygiene problems. Moreover, it can wash | clean on a printing press and can wash | clean cleanly without a stain in a short time. Furthermore, in response to the small lot of shops, the cleaning can be completed quickly and effectively, and the operation rate of the printer is improved. In addition, this roll is easy to manufacture, and it has sufficient stability, and at the same time, it attaches only to a place where it is necessary by partial adhesion, and it becomes cost-down.

Claims (3)

A surface layer 1 having a plurality of ultrafine fibers 5... On its surface in a brush hair shape and a cleaning layer 3 formed by laminating an elastic layer 2 are partially or entirely attached to the carrier sheet 4. The carrier sheet for cleaning characterized by the above-mentioned. The surface layer 1 having a plurality of ultrafine fibers 5... On its surface in the form of a brush hair, and the elastic layer 2 are wound on a cylindrical sleeve 11 in a laminated form, and the plate 20 or the pressure of the printing press ( 21), and it is replace | exchanged, and it is comprised so that the to-be-cleaned roll 22 which opposed this plate 20 or the pressure 21 may be comprised, The cleaning roll characterized by the above-mentioned. A surface layer 1 having a plurality of ultrafine fibers 5... On its surface in a brush hair shape, and an elastic layer 2 partially attached to the cylindrical sleeve 11 in a stacked form, and the printing plate 20 of the printing press. Or a cleaning roll, which is configured to be cleaned by being exchanged with the pressure 21 and to clean the to-be-cleaned roll 22 facing the plate 20 or the pressure 21.