JPH07191582A - Regenerating device of image holding base - Google Patents

Abstract

PURPOSE:To provide a regenerating device of copying paper having a device for efficiently removing an excess peeling liquid from the surface of the copying paper with the regenerating device of the copying paper for which the peeling liquid and an image peeling member are used. CONSTITUTION:This regenerating device of the image holding base has a liquid feed section for impregnating the image holding base on which a hydrophobic image exists with the peeling liquid and a peeling section for bringing the hydrophobic image and the image peeling member into contact with each other to transfer the image to the image peeling member by heating, thereby peeling the image from the image holding member. The regenerating device of the image holding base has a means for recovering the excess peeling liquid between the liquid feed section and the peeling section. A spongly member may be used in addition to a blade as the means for removing the peeling liquid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image peeling body used for regenerating an image holding support on which an image made of a heat-flexible ink (toner) is formed.

[0002]

2. Description of the Related Art Due to recent OA, printer paper and copying paper have come to be used in large quantities. As a result, the problem of deteriorating the global environment due to deforestation has become a problem. Conventionally, to solve this problem, there is no alternative but to remove the ink or the like on the used paper, crush it, and then reuse it to recycle it to waste paper. However, recently, a method has been developed in which a character image on a used paper can be removed by cleaning and reused for copying or printing. For example, such a method is described in the following publications.

(1) JP-A-4-64472: JP-A-4-64472
-67043 A release agent such as a silicone sealant is applied to the surface of an unused copy paper and dried to prepare a copy reproduction paper, and then image forming copying is performed on the release agent application surface. The image forming body is adhered to a heat-fusible resin (toner resin as an image forming component) to remove the image, and a copy reproduction paper is produced.

However, according to this method, since the image is on the release agent, the fixing property is naturally deteriorated. The toner is adhered to the image forming component toner resin, and the image is mechanically peeled off in a heated state. Therefore, the toner resin of the image component that has penetrated into the eyes of the paper fiber cannot be completely removed. Therefore, the regeneration efficiency is considered to be very poor. From the viewpoint of resource reuse, double-sided copying, that is, front / back double-sided copying of a single copy sheet is important, and is considered to be the mainstream in the future. Under such circumstances, the method of applying the release agent on one side becomes very inefficient. Even if a release agent is applied to both sides and dried, the silicone sealant will penetrate into the copy paper, resulting in a translucent copy paper. Therefore, double-sided copying becomes impossible (difficult to see). Erasable paper and plain paper must be distinguished and copied, which is inefficient. It is difficult to make a copy of a mixture of erasable paper and plain paper and in a state where it matches the actual situation.

(2) JP-A-1-101576 and JP-A-1-101577: An image-formed support is immersed in an organic solvent which dissolves the image-forming toner resin on the image-forming support, and ultrasonic treatment is carried out. By doing so, the image is removed from the image-formed support. However, this method requires a large amount of the organic solvent in order to dissolve and remove the image-forming material in the organic solvent, the processing apparatus also becomes large, and there are problems such as solvent reprocessing, flammability, toxicity and pollution. However, there are some difficulties in using it in general offices and homes.

(3) Japanese Patent Application Laid-Open No. 1-297294: An image-forming support formed of plastic, metal, paper having poor liquid permeability, ceramics or the like is used as an image-forming support. Although a cleaning method is described in which the image is heated by interposing a heat-meltable peeling body and the image is peeled from the support, a special paper (erasable paper) whose surface is subjected to a release treatment must be used. However, there is a drawback that it cannot be applied to general copying paper, printing paper, etc., which are currently used in large quantities. (4) In contrast to the method of (3), as a method of peeling off the toner image copied on the plain paper, as shown in FIG. 3, after the copied paper is impregnated with a stripping solution containing water, A method has been proposed in which the image peeling body is brought into contact with the image surface and heated to transfer the toner image to the image peeling body, and then the image peeling body is peeled off from the copy paper together with the image. However, there are various problems in carrying out it concretely, for example, when the step of impregnating the copy paper with the release liquid is continuously performed by a specific device, the excess amount of the adhesion on the surface of the copy paper is A means for efficiently removing the stripper has not yet been found.

[0007]

DISCLOSURE OF THE INVENTION The present invention continuously removes excess stripping liquid adhering to the surface of the copying paper, and
An object of the present invention is to provide a reproducing device for an image holding support, which is provided with a stripping solution recovery part that can be effectively removed.

[0008]

The constitution of the present invention for solving the above-mentioned problems is to provide a liquid supplying section for impregnating an image holding support having a hydrophobic image with a releasing liquid, the hydrophobic image and image peeling. In a reproducing device of an image holding member having a peeling portion that transfers the image to the image peeling member by contacting with the body and heats the image peeling member, and between the liquid supply unit and the peeling unit. The apparatus for reproducing an image holding support has a recovery section for an excess stripping solution. Further, a device equipped with a blade and a device equipped with a sponge-like member are suitable as means for removing liquid on the surface of the image holding support.

As the amount of the peeling liquid contained in the image holding support is decreased, the adhesion between the image holding support and the thermo-flexible ink is weakened, and the peeling ability is high. However, the more stripping liquid, the more thermal energy is required at the stripping portion. Further, once the adhesiveness between the image-holding support and the thermo-flexible ink is weakened, most of the peeling liquid contained in the image-holding support becomes unnecessary. Therefore, if an extra stripping liquid recovery part is provided between the liquid supply part and the stripping part, the amount of stripping liquid can be saved, the thermal energy for drying can be saved, and the steam to be discharged can be reduced.

The image support to be reproduced in the present invention is an ordinary copy paper used in an office, and specific examples thereof include Ricoh's type 6200 and a paper source. Further, water may be used as the stripping solution, but 0.01% of a surfactant is added in order to improve absorption to the image holding support.
It is desirable that the content is -20%. The reproducing apparatus of the image holding support of the present invention will be specifically described with reference to the drawings. FIG. 1 shows an example in which a blade is provided in the stripping solution collecting section.

FIG. 2 shows an example in which a sponge-like member is provided in the stripping liquid recovery section. In the present invention, the materials of the blade and the sponge-like member are not particularly limited. For example, resin,
Examples include metal, rubber, cloth, and the like. Hereinafter, the present invention will be specifically described with reference to examples.

Example 1 The material of the image peeling body is a 100 μm thick polyethylene terephthalate film, and the image on the image holding support is contacted and heated at about 90 ° C. with a heat roller. The feeding speed of the image holding support is about 1 cm / sec. Release liquid for copying image paper on which an image is formed by a normal PPC copying machine (FT6960 manufactured by Ricoh) [Surfactant BT- manufactured by Nikko Chemicals Co., Ltd.]
7% 1% aqueous solution], the excess peeling liquid was scraped off with a rubber blade and collected, and then conveyed to the peeling section to peel off the formed image from the paper surface. The average power consumption when 120 sheets were processed in one hour was about 0.6 kw.

Example 2 The same experiment as in Example 1 was carried out except that a sponge was used instead of the blade, and similar results were obtained. Comparative Example The same experiment as in Example 1 was conducted except that the recovery section was not provided. The average power consumption when 120 sheets were processed in one hour was about 1.1 kW.

[0014]

As described above, in the reproducing apparatus of the image holding support of the present invention, since the extra liquid collecting portion is provided between the liquid supplying portion and the image peeling portion, the peeling liquid is removed. It has the effects of saving volume, saving heat energy, and reducing the amount of water vapor emitted. Blades and sponge-like members are provided as members provided in the recovery unit. The blade has a simpler structure and saves space, but the sponge-like member has a softer contact and less deterioration of the image holding support.

[Brief description of drawings]

FIG. 1 is an explanatory view of a specific example of the apparatus of the present invention,

FIG. 2 is an explanatory view of another specific example of the device of the present invention,

FIG. 3 is an explanatory view of the principle of a method for recycling copy paper using a peeling liquid.

Claims (3)

[Claims] 1. An image holding member having a hydrophobic image thereon, the liquid supplying section for impregnating the peeling liquid, the hydrophobic image and the image peeling member are brought into contact with each other and heated to form the image on the image peeling member. An image holding device having a peeling portion for transferring and peeling an image from the image holding body, characterized by having an extra peeling liquid collecting portion between the liquid supply portion and the peeling portion. Support playback device. 2. A reproducing apparatus for an image holding support according to claim 1, wherein a blade is provided as a means for removing the liquid on the surface of the image holding support in the extra stripping liquid collecting section. 3. The apparatus for regenerating an image holding support according to claim 1, wherein a sponge-like member is provided as a means for removing the liquid on the surface of the image holding support in the extra stripping liquid recovery section. .