JPH0631492Y2 - Electrostatic copying image fixing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an apparatus for enhancing the fixing power of toner by reheating a toner image on a resin-coated cloth by an electrostatic copying method.

[Problems to be solved by conventional techniques and devices]

In the electrostatic copying system, colored charged fine powder (toner)
The toner image faithful to the original image is transferred to the copy medium such as paper, film, or resin-coated cloth by using static electricity, and the image is fixed by heat fusion.

When an ordinary electrostatic copying machine is applied to paper, the toner in the toner image is fused without any problem, so that it can be used for general purposes such as document recording.

However, there are various problems when a medium other than that, for example, a cloth coated with a resin composition is used as a copying medium.

That is, when a toner image is fixed on such a resin-coated cloth by a dry electrostatic copying machine, a clear copy image is provided and at the same time, the cloth has flexibility, strength such as tension and tear, bending, rubbing, friction and the like. Images that combine features such as durability and water resistance are required. However, when a normal dry electrostatic copying machine is used, the fixing is not sufficient and the toner is not completely fused on the cloth surface, so that the above requirement cannot be satisfied as it is.

[Means for Solving the Problems]

As a result of various studies conducted by the present inventors to solve the above problems, in order to fix the toner image on the resin-coated cloth, heat treatment at a predetermined temperature for a predetermined time leads to We obtained the knowledge that it can be exerted and devised a device suitable for this.

That is, the present invention is an apparatus for heat-treating a toner image provided on a resin-coated cloth at a predetermined temperature for a predetermined time by using a dry electrostatic copying machine, and a main body of a box-shaped container lined with a heat insulating material and its body. It consists of a lid piece, the treated cloth is placed on the upper part of the main body, and the heating plate with the heating element on the back side is attached,
A lid piece that opens and closes in the vertical direction for taking in and taking out the cloth to be treated is attached to one side of the main body, and a heat reflecting plate is provided on the inner surface of the lid piece by laminating it on a heat insulating material. This is a fixing device for an electrostatic copy image, which is provided with a temperature adjusting device which is energized at the same time and simultaneously operates in conjunction with a timer.

The drawings show an embodiment of the present invention, in which a main body (1) made of plastic or the like is lined on the inner surface with a heat insulating material (2) (for example, Max Board (solidified product of ceramic powder)), and an upper portion thereof. A flat plate-shaped heating plate (3) is attached to the. (4) is a planar heating element attached to the back surface of the heating plate (3). A lid piece (5) that rotates with a hinge (A) is attached to one side of the main body (1) to open and close the upper surface of the main body (1) up and down. The front end (5 ') of the lid piece is attached to the base (5) of the lid piece by a hinge (B) so as to rotate upward. These lid pieces (5)
The inner surface of (5 ') is also lined with a heat insulating material (2), and a heat reflection plate (6) is laminated on the surface. A timer and an automatic temperature control device interlocked with the timer are incorporated in the inside (7) of the main body (1), and the set temperature and the heating temperature can be digitally displayed by operating when the lid piece is closed.

The device of the present invention is operated by keeping the upper lid piece (5) that needs to be kept warm, opening the lid piece (5 '), inserting the resin-coated cloth (8), and placing it on the heating plate (3). When (5 ') is closed, an electric current is passed through the sheet heating element (4) to heat the inside of the box and the automatic temperature control device operates in conjunction with the timer. A display lamp (9) provided on the outer surface of the main body, which is heated at a predetermined temperature for a predetermined time, is turned on to indicate completion. The fixed resin-coated cloth (8) is taken out by opening the lid piece (5 '), slides and moves to the quenching plate (10), and is rapidly cooled.

[Action]

In the fixing device of the present invention, the inner surface is lined with a heat insulating plate, and at the time of operation, the heating plate and the heat reflecting plate face it through a gap, and the automatic temperature control device and the timer work together to insert the treated cloth into the gap. Since the heat treatment is performed, the heating temperature and time required for fixing can be strictly adjusted, and the adhesion of toner can be strengthened extremely safely and reliably.

As an example, the heating element (4) now has a maximum electric capacity of 1350 W using AC100 V as a power source, and the heating plate (3) is an aluminum plate coated with tetrafluoroethylene resin of 30 μm. A cloth (cotton) coated with chlorinated polyethylene resin, to which a toner image was given by a dry electrostatic copying machine, was placed on the heating plate as a cloth, and the temperature was 160-230
When heat treatment was performed at 1 ° C for 1 to 30 seconds, a cloth having a clear copy image and excellent physical properties was obtained.

[Effect of device]

When the resin-coated cloth is heat-treated by the fixing device of the present invention, the toner can be sufficiently melted and adhered to the printed surface,
At the same time, ironing effect is applied to the cloth to obtain a distinctive copy image. For example, if the copy is an art painting, the resulting image will be in a canvas-oil painting tone and will look very attractive. A sewn product made from this copy cloth has good wear resistance and is resistant to bending, rubbing, immersion in water, etc., so that it can be put to practical use. Wrinkles or the like formed by folding the copy cloth or by handling the copy cloth easily disappears by applying an iron from the back side of the image, and the original form can be restored without damaging the image. In addition, this device can be carried with bare hands even during heating and is easy to handle.

[Brief description of drawings]

The drawing illustrates the fixing device of the present invention. FIG. 1 is a schematic cross-sectional view of the fixing device with the lid piece opened, and FIG. 2 is an overhead view of the device. (1) …… Main body, (2) …… Insulation material, (3) …… Heating plate, (4) …… Sheet heating element, (5) (5 ′) …… Lid piece, (6) …… Heat reflector, (8) …… Processed cloth, (10) …… Quenching plate

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-52-82509 (JP, A) JP-A-50-137145 (JP, A) JP-A-58-125076 (JP, A) JP-A-50- 128530 (JP, A) JP 50-134437 (JP, A) JP 56-95277 (JP, A) JP 61-63873 (JP, A) Actual development 57-184956 (JP, U) Actually developed 50-40242 (JP, U)

Claims (2)

[Scope of utility model registration request] 1. An apparatus for heat-treating a toner image provided on a resin-coated cloth at a predetermined temperature for a predetermined time using a dry electrostatic copying machine, comprising: a main body of a box container lined with a heat insulating material; It consists of the lid piece, the cloth to be processed is placed on the upper part of the main body, the heating plate with the heating element on the back side is attached, and the one side of the main body is opened and closed vertically to take in and remove the cloth to be processed. A lid is attached to the lid, and a heat reflection plate is provided on the inner surface of the lid by laminating it on a heat insulating material. Further, the heating element is energized when the lid is closed, and at the same time an automatic temperature control device that operates in conjunction with a timer is provided. An electrostatic copying image fixing device characterized by being provided. 2. The predetermined temperature is 160 to 230 ° C. and the predetermined time is 1
The fixing device according to claim 1, wherein the fixing device has a duration of 30 seconds.