JP3266365B2 - Reproduction device for image holding support - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image holding support, and more particularly to an apparatus for recycling used printing paper.

[0002]

2. Description of the Related Art As a prior art relating to a used printing paper reproducing apparatus, there are, for example, JP-A-4-300395 and JP-A-4-118500. The patent is characterized in that “the solvent is immersed in the printed portion and the toner is dissolved by a spraying method”. However, this method is generally unsuitable for installation in an office due to the effect of the solvent on the human body and the environment. In addition, it is necessary to use a plurality of types of solvents depending on the type of binder resin of the toner or the paint, and there is a drawback that an object to be processed is limited. Furthermore, when the toner is dissolved with a solvent, the probability of redeposition in the fiber structure of the paper increases, the total removal rate decreases, and problems such as "staining" are difficult to avoid. The cost is higher than the waste paper recycling method.

[0003]

[Object] The present invention relates to an image layer (including a print layer; the same applies hereinafter).
From the image support on which the image layer has been formed, the image layer can be efficiently removed, the image support can be regenerated, and the components constituting the removed image layer, such as toner and paint, can be sufficiently recovered. It is an object of the present invention to provide a reproducing apparatus for an image holding support.

[0004]

The present invention relates to a means for removing an image component formed on an image support, a means for removing an image component held inside the image support, and an image which is left on the image support when the image component is removed. The present invention relates to a reproduction apparatus for an image holding support, which comprises at least means for removing components and means for repairing surface roughness of the image support generated at the time of removing the image components. In the present invention, the term "image support" refers to paper, at least a part of the support made of paper (for example, a laminate of paper and a plastic film), and a plastic sheet or film. The apparatus for recycling used image holding supports of the present invention will be specifically described with reference to the drawings. However, the playback device of the present invention is not limited to the following drawings.

FIGS. 1 and 2 illustrate the process flow of a printed paper reproducing apparatus and the operation of each process. 1 and 2 correspond to (1) to (6) of the process flow shown in FIG.
That is, (1) paper feeding means, (2) image layer removing means existing on the paper surface, (3) image layer removing means existing in the paper fiber structure, and (4) free image layer remaining on the paper. It has means for removing components, (5) means for restoring the paper surface, and (6) means for discharging recycled paper.

The constituent material of the means for removing (sharpening) the image components formed on the image support may be metal, plastic, rubber, fiber material, or a combination of these materials. Suitable shape,
For example, it is used in a shape such as a cylindrical shape. Further, the removing means may have a suitable shaving structure (for example, a projection) on its surface or an abrasive such as microspheres.
As a means for removing such image components, a plastic film (for example, wrapping films # 400 and # 10) is used.
00), and mechanical scrubbing means using a rotary cutter blade, a gliding grindstone, a buff cloth, a hard brush or the like as shown in FIG. 2A. Among the above-described removing means, a removing means softer than paper is particularly preferable. As such means, a metal, a metal, or the like on a substrate softer than paper as shown in FIG.
A polishing cloth having microspheres made of rubber, plastic, or the like, or a metal, plastic, or rubber roller coated with the polishing cloth as shown in FIG. 3 may be used.

The removal of the image layer by the above-mentioned mechanical means is preferably carried out by pressing the image support with an appropriate pressure. The preferred range of the pressure varies depending on the type of the removing means, but is a range in which no excessive pressure is applied to the image support, for example, about 1 to 50 g / cm ² . To adjust the pressure of the image support, for example, as shown in FIG.
As shown in FIG. 5A, an elastic body is provided in contact with the surface of the paper opposite to the image layer removing means to perform the removing process. As shown in FIG. Means for removing by applying wind pressure from the paper surface. The processing speed is preferably in the range of 1 mm / sec to 1 m / sec.
Further, before performing the image layer removal treatment, as shown in FIG. 7, the image layer is crushed by a roll crusher 16 having a micro pattern, for example, a micro pattern having a surface unevenness of 5 to 20 μm formed on the roll surface. When lashing is performed, damage to the paper due to the removal processing is reduced, and the removal of the image layer can be performed smoothly.
Further, when the toner resin constituting the image layer is melted, rapidly cooled to change into a large block pattern, and the image layer is removed, the removal of the image layer is similarly performed with less damage to the paper and efficiently. It can be carried out. In the crushing process, the paper supply roller shown in FIG. 2A is generally configured such that the components of the image layer formed on the paper surface, for example, the toner resin and the paper are covalently bonded via an OH group or a COOH group. That is, in the case of a dense paper, the components are hardly penetrated into the fiber structure, but the components are hardly invaded by a chemical bond or a hydrogen bond. Most of the components of the image layer, for example, 9
9% or more can be removed.

Next, as shown in FIG. 6, a slight amount of the image layer component remaining in the fiber structure is roughened on the outermost surface of the heating and pressing roller on the side where the image layer is formed. Between a pressure and heating roller (60 to 150 ° C.) 8 which is provided with cloth, paper, sponge-like porous material, etc., and can reversely transfer image components such as molten toner and resin to the roller side by reverse capillary action. And can be removed by reverse transfer to the heating and pressing roller side.

The image components generated by the above-mentioned processing and remaining on the image support are converted into (a) magnetic force of a magnet roller or the like, (b) static electricity of an electrostatic brush or the like, and airflow such as airflow due to forced fan. Using a spraying method. For example, toner powder scattered on an image support can be easily cleaned by using magnetic force or static electricity because the toner is designed to be charged to (+).

Finally, when the surface of the image support is roughened by the above-described steps, the roughened surface is repaired as necessary. The restoration process is performed by a pressure process using a pressure roller, for example, as shown in FIG. As the pressure roller, an elastic roller is preferable, and one or a plurality of pressure roller pairs can be employed. The treatment may be performed while heating, and is particularly preferably performed under high-temperature steam.

[0011]

According to the present invention, the image layer of the image holding support can be removed without using a solvent or a large amount of thermal energy, and can be constituted only by mechanical means, and the whole apparatus can be made compact. An apparatus for reproducing an image holding support is provided.

[Brief description of the drawings]

FIG. 1 is a diagram showing a flow of a reproducing unit of a printed and used paper reproducing apparatus of the present invention.

FIG. 2 is a diagram showing a configuration and an operation of a reproducing unit shown in FIG. 1; (A) Step of removing image components on paper surface (b) Step of removing image components in paper tissue (c) Step of removing free residual image components (d) Step of restoring paper surface

FIG. 3 is a diagram showing a polishing cloth formed by scattering fine particles on the cloth.

4 is a view showing an operation of removing an image layer on an image support by a roller having the polishing cloth shown in FIG. 3 as a surface layer.

FIG. 5 is a diagram showing a configuration and an operation of a means for removing a used paper print layer by a polishing roller. (A) This is an example of a case where an elastic body is provided on the back surface of paper and the operation is performed under pressure. (B) This is an example of a case where wind pressure is applied to the back surface of the paper.

FIG. 6 is a diagram illustrating a configuration of a unit that removes an image component held in a fiber structure by a heating and pressing roller, and an operation thereof.

FIG. 7 is a diagram showing a configuration and operation of a crushing means performed by a roll crusher having a micro pattern which is performed before removing an image layer.

FIG. 8 is a diagram showing one example of a reproducing apparatus of the present invention in which each reproducing means is compactly arranged.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Blade cleaning brush 2 Image component 3 Rotary cutter blade 4 Image layer 5 Paper 6 Paper supply roller 7 Paper discharge roller 8 Heating / pressurizing roller 9 Mag roller 10 Magnetic field line 11 Elastic roller 12 Cloth 13 Microsphere 14 Polishing roller 15 Elastic body 16 Micro pattern crusher

────────────────────────────────────────────────── (5) References JP-A-4-234056 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G03G 21/00 570-578 G03G 21/00

Claims (3)

(57) [Claims] A means for removing an image component formed on the image support; a means for removing an image component held inside the image support; and an image component which remains free on the image support when the image component is removed. An apparatus for regenerating an image holding support, comprising at least means for removing and means for restoring the surface of the image support generated during the image component removal. 2. The image holding support according to claim 1, wherein the means for removing the image components held inside the image support is a means capable of thermally fusing the image components and reversely transferring the hot melt components. Body regeneration device. 3. The method according to claim 1, wherein the means for removing the image components free and remaining on the image support is means utilizing (A) magnetic force, (B) static electricity, or (C) airflow. Of an image holding supporter.