JPS6028657A - Slide - Google Patents

Abstract

PURPOSE:To prevent curling of film, peeling of toner, or deformation of picture image by pasting a heat adhesive film to the surface of film having visible image formed theron. CONSTITUTION:A photographic slide 50 is prepd. by pasting photosensitive film 2 to an aperture of a slide frame 1 made of paper or suitable plastic. Steps a, b are formed in the slide 50 between the frame 1 and the film 2. The film 2 is constituted of a transparent body 3 such as polyethylene terephthalate, an electroconductive layer 4, and a photosensitive layer 5. The heat-adhesive film adheres at a specified temp. by pressing and comprises transparent film such as polyester film as base film and is coated with adhesive such as polyethylene adhesive to the rear side. The adhesive is not activated at RT, but is melted at ca. 100 deg.C and becomes trasparent. Accordingly, handling at RT is convenient.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a slide in which a film having a visible image is mounted on a slide frame.

Conventional configurations and their problems Slides have traditionally been used for conference presentations and for archiving materials, and methods for creating slide images include those that use silver halide film, and those that use silver halide film using diazo layer coating film. Salt Negative Film J is closely exposed to decompose the diazo layer, and then exposed to ammonia vapor to develop color to create a colored negative image slide film.
There is also one in which an Ichiko photographic image is formed on a photoreceptor film by electrophotography.

However, previous 1; Slide film like me, Q
There are some scratches on the image surface caused by sharp objects.

6. 1) Films mounted on commercially available streak frames curl due to temperature and humidity 7 and are inconvenient because they cannot be focused during projection. For filt and curl
Methods such as sandwiching the filter with lath plates, etc. have been used, but the glass plate slide frame is expensive, and the filter is small.
, that J! It is possible to increase the p-shape, but the film becomes expensive: J The film had the same problems as above.

Electronic photography as we all know! J, One method of forming both images j1 is to form an image by physical and electrical means between an organic photoconductor and a photoreceptor 17, including charging, exposure, ,! J
In each process of the two images, a visible image is formed on the H3 photoconductor.However, the toner that has landed on the photoconductor during development is brought together by Coulomb attraction. Because of this, the toner is easily removed by friction and the image is destroyed.For this reason, in practical use, it is necessary to sufficiently fix (fix) the developed toner on the photoreceptor. Fixing methods have been used, such as pressure methods, heating methods, and organic solvent vapor such as methylene chloride that is brought into contact with the surface of the developed photoreceptor to dissolve a portion of the photoreceptor and adhere to the toner. However, in the fixing method described above, the toner adheres to the photoreceptor in an open state to the outside, and it is not possible to completely prevent the toner from peeling off. The toner particles are removed, resulting in a deterioration in image quality.Especially in images with a large area where toner particles are deposited, the image is significantly damaged.

OBJECTS OF THE INVENTION The present invention also has the following features: )'C) It prevents scratches on the slide film surface and film curl, and prevents damage to the slide film surface, especially when images are formed using electrophotography.
The object of the present invention is to provide a slide film in which peeling of toner adhering to a photoreceptor and deterioration of an image can be prevented.

Structure of the Invention The present invention is a method for applying a thermally adhesive film to the surface of a slide film so that a visible 1" film is formed, thereby preventing scratches and curling of the film. In the electrophotographed JZ slide, the γi on the photoconductor ('C4'J)
This prevents the toner from peeling off and the image from deteriorating.

DESCRIPTION OF EMBODIMENTS The slide of the present invention and the apparatus for producing the slide of the present invention will be explained below with reference to the drawings, taking as an example a case where a thermal adhesive film is attached to the film surface of an electrophotographic slide film. do.

In Figures 1 and 2, 1 is an embodiment of the present invention, in which a slide frame 1 made of paper or a suitable synthetic resin has an aperture portion R1 (light films 1 and 2 pasted). L l
i-den f' photo slide 5o (hereinafter referred to as slide)
4. There is a step between the slide frame 1 and the photoreceptor film 2.

Parts a and b are formed. 3 is a transparent base such as polyethylene terephthalate, 4 conductive layers, 5kl, and a photosensitive layer.

Reference numeral 6 in FIG. 3 indicates a thermal adhesive film that is adhered to the image-formed photosensitive layer side of the photosensitive film 2 of the slide 50. As shown in FIG. The thermal adhesive film 6 is a film that adheres by applying pressure and temperature above a certain level, and is made of a transparent film such as polyester as a paste and coated with an adhesive such as polyethylene on the back side (0 side). Does not melt and bond at room temperature10
Since it melts and remains transparent at high temperatures of around 0°C, it is easy to handle at room temperature.

FIG. 4 is a sectional view showing a state in which the thermal adhesive film 6 is adhered to the surface of the photoreceptor film 2 of the slide 50. The thermal adhesive film 6 has approximately the same size and shape as the aperture.

FIG. 5 shows a circuit block diagram of an apparatus for producing a slide according to the present invention, in which the lSl reserve is connected to the heat control means 26, the first
a control unit including a timer 27 and a second timer 28;
Reference numeral 29 denotes a detection means consisting of a microswitch or the like for detecting the presence or absence of a slide (hereinafter referred to as microswitch 2 in this embodiment).
Called 07. ), 17 is a drive unit (hereinafter referred to as a solenoid in this embodiment) 3, Figure 6r1 is a detailed cross-sectional view of a heating and pressurizing unit used in the device implementing the present invention; 7 is a positive! 1. The slide 50 is inserted onto the surface of the heater stand 7, which is heated by a heater 8 consisting of a resistance element, etc., and the slide 50 is heated. J has a stepped portion d which is fitted into the stepped portion and is in contact with the entire surface of the photoreceptor film. Reference numeral 9 denotes a pressurizing goblet made of a heat-resistant material 1 made of silicone or the like, which is attached to a lifting stand 10 which is located above the heater stand 7 and has a flat bottom that can be raised and lowered. and the convex curvature 2 on the lunar surface and the same jI on the opposite surface
The curvature of the gate is 6-i. 22 is a release spring for unfitting the stepped portion d on the top +1 of the loading table 10 after pasting is completed, and 23 is a release spring for pushing in the opposite direction to the insertion of the slide 60 When the slide 50 is inserted onto the surface of the heater stand 7, the υ1 output spring 24 fits into the heater stand step d and presses the slide frame 1. -Spring, 2 s ij
) Placement difference part dVCo-
The guide spring is installed forward of the stepped portion d in the slide insertion direction so as to be located slightly above the top surface of the guide spring.

FIG. 7 is an overall schematic diagram of an apparatus for carrying out the present invention, in which the mount 10 is connected to an arm 11 via a shaft 12, the arm 11 is connected to a lever 13 via a shaft 14, and the above-mentioned arm 11 is connected to a lever 13 via a shaft 14; The lever 13 is rotatably held on a support shaft 16. arm 11° axis 14. Lever 13. Support shaft 1
5 forms a toggle mechanism. The lever 13 is connected to a solenoid 17 via a spring 16, and when the solenoid 17 operates (LCJ), the toggle mechanism (14) is activated. 18 is the control section and 19id is the return spring.

FIG. 8, FIG. 9, FIG. 10, and FIG. 11 are detailed cross-sectional views showing the operation of the heating and pressing section of the apparatus implementing the present invention.

The operation of the apparatus for carrying out the present invention constructed as described above will be explained with reference to the drawings in FIGS. 5 to 11. As shown in FIG. ! ! ! F addition percentage system? The thermal adhesive film 6 is placed on the surface of the photoreceptor film 2 on which the image is formed on the surface of the heater stand 7 heated by the heater 8 linked to the immersion. Then, as shown in FIG.
By pressing the surface of the strip (J)L1, the entire surface of the photoreceptor film 2 is brought into contact with the - surface of the stepped portion d. The microswitch 20 is turned off via the press spring 23, and the first switch of the control section 18 shown in FIG.
The timer 27 is activated, and after the set time elapses, the second timer 28 linked to the first timer 27 is activated, and the solenoid 17, not shown in FIG. Toggle mechanism: 1. 1) The pressurized rubber 9 mentioned in II is removed. The table 1o descends and presses the thermal adhesive film 6 and the photoreceptor film 2 located in the aperture of the pressurized rubber 9 or the slide 50. .

The apparatus implementing the present invention is configured to disable the operation of the first timer 27 and the second timer 28 while the preheating control means 26 is in operation, so that the temperature of the heater stand 7 is If the temperature plate required for pressure bonding of the thermal adhesive film 6 is not set to 2, the operation of the preheating control means 26 will not be turned off, and the first timer 27.
The second timer 28 does not operate and no pressurizing operation is performed.

FIG. 9 shows the state in which pressure is applied. Since the heater stand 7 has a step d that fits into the slide step 70, the entire surface of the photoreceptor film 2 is ensured on the surface of the heater stand 70. Since the photoreceptor film 2 is in close contact with the photoreceptor film 2, the entire surface of the photoreceptor film 2 can be heated uniformly, and the photoreceptor film 2 can be prevented from warping when pressurized by the pressure rubber 9.

Below Margin Next, when the solenoid 17 is activated for a certain period of time by the second timer 28 shown in FIG. 5 and then deactivated, the return spring 19 shown in FIG.
0 increases by 1 and the pasting is completed. After the pasting is completed, the slide is pressurized as shown in FIG. After applying pressure for a certain period of time as described above, the operation of the solenoid 17 is released 711, and when the loading platform 10 is raised, the slide frame 1 is pulled up by the release spring 22 as shown in FIG.
, l'ljl 1'+ (step X of the heater stand between the two slides).

FIG. 12 is a circuit diagram of an apparatus implementing the invention. 2
9 is a life lamp indicating that the preheating control means 26 is in operation; 30 is a notification lamp indicating that the preheating control means 26 is off; 31
is an operation lamp that indicates that the first timer 27 and second timer 28 are in operation. 1゜Thermal adhesive film can be completely adhered by applying a load above a certain level for a certain period of time at a temperature above a certain level. If the temperature is too low or the load is too small, the adhesive will not melt completely, and even if the pressure is applied for a long time, the adhesion will be uneven. Even if the temperature and load are sufficient, if the pressurizing time is too short or too short, the adhesion will be uneven as described above, and if the pressurizing time is too long, the film may deform, which is disadvantageous. The operation of this device is linked to the preheating control means 26, and when the slide is inserted into the heated heating table 7, the microswitch 20 is activated, and the first timer 27 linked to the microswitch 20 is set to 1. After operating for one period, a second timer 28 linked to the first timer 27 is operated, operating the solenoid 17 for a set time, and pressurizing the thermal adhesive film by a pressure unit connected to the solenoid 17. , during the operation of the preheating fli control means 26, the first and second
Since the operation of the timer is disabled, the pressurizing operation is not performed until the temperature of the heater stand 7 reaches the temperature required to melt the adhesive of the thermal adhesive film 6. When the temperature of the hC microswitch 20 exceeds a certain level, the first and second timers operate to cause the pressurizing section to pressurize for a set period of time.
After the operation of the first timer 27, the pressurizing operation is not performed for the set time, so there is a time margin of 15 for the operator to insert the slide into the heater stand position securely.
I can do it. In other words, what is the temperature and pressure 11y required to adhere the adhesive film l? When the lil carving 11 comes on, it becomes possible for the operator to set the required operation time. Note that as the preheating control means 26, time control, temperature detection control, etc. can be used.

Next, the pressurized rubber 9 having a curvature used in the apparatus for carrying out the present invention will be described in detail in 1 and FIG. 13.

Figure 14 shows the surface shape of the pressurizing side of the pressurizing rubber 9 - 1/11
The operation of the pressurized rubber 9o shown in (3) is shown. Pressure comb 9
When the surface of
Due to the flatness of the surface, the warpage of the thermal adhesive film 6, etc., the position where the thermal adhesive film 6 and the photoreceptor film 2 are in close contact is not fixed, and pressure is applied such that the peripheral area comes into contact with the central area first. As a result, the air in the central part may not be sufficiently vented, and as shown in FIG. 16, air remains between the thermal adhesive film 6 and the photoreceptor film 2, preventing complete adhesion and causing problems during projection. Appears as a blotchy image defect. In fact, when this part is pressed with a finger or the like, the friction between the thermal adhesive film 6 and the photoreceptor film 2 may cause the toner on the photoreceptor film surface to peel off, resulting in image defects.

FIG. 16 is an external view showing an example of the pressurized rubber used in this device, in which the surface facing the heater stand 7 has a convex curvature with the central part of the pressurized rubber as the apex, and the opposite surface are provided with concave curvature of the same degree. The pressurizing operation when using the pressurizing rubber 9 of this device will be explained with reference to FIGS. 17 to 20.

As mentioned above, by the operation of the solenoid 17 shown in FIG. 7, when the slide 50 is inserted into the surface of the heat-heating table 7 as shown in FIG. descends, and the pressure rubber 9 begins to come into contact with the thermal adhesive film 6 as shown in FIG. comes into contact with the center of the heat-adhering film 6 and begins to adhere to the photoreceptor films j and 2. After that, as shown in FIG. 19, the pressure comb 9 is pasted/1 as shown in FIG.
'1 The contact part with the film 6 becomes flat, and it is pasted sequentially from the contact part, and the mounting base 10 is at the bottom a) 1.
As shown in FIG. 20, the contact portion of the pressurized rubber 9 with the heat-adhesive film 6 becomes completely flat, and the entire surface of the thermal adhesive film 136 and the photoreceptor film are adhered.

As described above, the thermal adhesive film 6Vl1 is applied to the photoreceptor film 2 sequentially from the middle heat part to the periphery, so that the air between the thermal adhesive film 6 and the photoreceptor film 2 flows from the center. It moves easily towards the periphery and does not cause the adhesion state where air remains as shown in Figure 15, and it is 11 inches, allowing for reliable adhesion. Because the adhesive is applied toward the periphery, compared to a method in which the rubber roller is used as a pressurized rubber and the adhesive is applied sequentially from the periphery of the aperture, there is a risk of misalignment between the thermal adhesive film and the photoreceptor film, as well as heating and pressure on the thermal adhesive film. The amount of elongation is less uneven.

The curvature provided on the pressure rubber 9 is such that when the center of the pressure rubber comes into contact with the thermal adhesive film, the gap between the peripheral area of the pressure rubber and the photoreceptor film can be adjusted to prevent warping of the thermal adhesive film, tilting of the heater stand and mounting base, etc. It is sufficient if the curvature is such that it can absorb the amount of water. In this example, the slide aperture size is 25 mm.
The case where a rubber with a width of 36 mm is used is described, but according to experiments, the pressure rubber has R100 + I1 m (the above-mentioned gap amount 0.7 mm) to R60 mm (the above-mentioned gap size 1,
A curvature of 5 mm ) was provided and a force of 20 Kg was applied to obtain good adhesion. As mentioned above, in this example, the slide aperture size θ' is 25 mm x 36 mm.
mm, but even if slide apertures with different dimensions are used, the gap between the periphery of the pressurized rubber and the film when the center of the pressurized rubber contacts the film can be approximated as above. good. In this embodiment, the case where the pressurized rubber is provided with a curvature in the lateral direction is described, but the curvature may be provided in the longitudinal direction or a spherical surface.

In this example, the electronic copy 1"↓SlightF□1.-1
Regarding the case of ``attaching a thermal adhesive film to a song''
It can also be applied to slides such as silver halide film, film, diazo layer coat film, etc.

Effects of the Invention As described in Section 2 above, the present invention is capable of attaching an adhesive film to the fill 1 of the fill 1 having a visible image mounted on the slide frame. ] At the end of frum, l: Prevents image defects +l-, L, 10/, -
Sushitoff () by pasting the 12th film
The thickness of the shim has been increased, making it cheaper than the conventional glass plate Aη to prevent film curl by sandwiching the film. 1. It can improve the handling and storage stability of slides, such as preventing slides from peeling off and deteriorating images, and the effects are extremely impressive.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a slide according to an embodiment of the present invention, Fig. 2 is a sectional view thereof, Fig. 3 is an exploded perspective view thereof, and Fig. 4 is a thermal adhesive film pasted on the photoreceptor film surface. 5 is a circuit block diagram of an example of an apparatus for producing a slide according to the present invention; FIG. 6 is a sectional view showing an example of a heating and pressurizing section of an apparatus for producing a slide according to the present invention; FIG. 7 is an overall schematic diagram of the same device, FIGS. 8, 9, 10, and 11 are sectional views showing the operation of the heating and pressing section of FIG. 6,
Fig. 12 is an example circuit diagram of an apparatus for producing the present invention, Figs. 13 and 14 are sectional views showing the operation of the apparatus for producing the present invention, and Fig. 16 is a plan view of the surface shape of the pressurized rubber of the same apparatus. Fig. 16 is an external view of an example of pressurized rubber used in the apparatus for producing the present invention, Fig. 17, Fig. 1-8, Fig. 19. and the second
FIG. 0 is a sectional view showing a pressurizing operation using the same pressurizing rubber. 1... -Slide frame, 2... Photoreceptor film, 6
...Thermal adhesive film. Fig. 1 50 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 80 Fig. 9 n Reno 8310 Fig. 0 + 21'Z+ 6 /'1 :,, ]? , r's]] 1 This 1・I'll''4 1 Figure 16 Figure 7 Figure 18 Figure 9 Figure 20 /7

Claims (1)

[Claims] A slide specially designed to be made by pasting a heat-adhesive film on the film surface of a film with a visible image mounted on a slide frame.