JPS63289550A - Transfer sheet for instant photograph - Google Patents

Abstract

PURPOSE:To enable waiting for lapse of a developing period in a bright room by sticking a strippable light shielding member to the surface on the opposite side of an image receiving face which is the face to be superposed with the color forming layer face of a photosensitive body. CONSTITUTION:This transfer sheet for instant photographing is formed with an image by superposing the color forming layer face of the photosensitive body 2 formed with a latent image by exposing via a developer and is subjected to development and transfer that take place after lapse of the prescribed period of time. The strippable light shielding member is stuck to the surface on the opposite side of the image receiving face 1 of such transfer sheet, which face is the face to be superposed with the color forming layer face of the photosensitive body 2. Waiting for the lapse of the development period in a bright room is thereby enabled with the thickness equiv. to the thickness of ordinary paper without requiring the light shielding layer on the rear face and without requiring a dark box, etc., when the sheet is made into a transfer sheet of a natural white color.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a transfer sheet for instant photography, particularly for so-called peel anony instant photography.

Prior Art In the beer-apart type instant photography described above, a photoreceptor (negative sheet) is first image-wise exposed to form a latent image on the photoreceptor, and the photoreceptor on which this latent image has been formed is transferred to a transfer paper (positive sheet). They are superimposed via a developer and a predetermined time required for development and transfer elapses, thereby forming an image on the transfer paper.

Among such negative sheets and positive sheets for instant photography, there is one that has a full light-shielding layer on the back side, so that after being discharged from the developing roller, the developing time can elapse without exposure to light even in a bright room. be. However, such a sheet has the disadvantage that the thickness of the sheet is too thick.

It is also possible to apply a light-shielding layer to the back side of the positive sheet, but if this is done, the abdomen will be black or gray, giving an unnatural feeling.

Furthermore, in the case of positive sheets for OHP, slide, etc., since the support is transparent, there is no light-shielding property, and even after the sheet passes through the developing roller, the sheet must wait for the development time to elapse in a dark state.

Purpose In view of the above points, the present invention uses a transfer sheet with the same thickness as plain paper, does not require a full light-shielding layer on the back side, and even when a natural white transfer sheet is used, does not require a dark box, etc., and can be used in a bright room. To provide a transfer sheet that can wait for development time to elapse.

Structure The above object is achieved by attaching a releasable light-shielding member to the surface of the photoreceptor (negative sheet) opposite to the image-receiving surface, which is the surface on which the coloring layer surface is superimposed.

Hereinafter, the present invention will be explained based on Examples.

FIG. 1 is a perspective view of a transfer sheet according to one embodiment. In the figure, reference numeral 1 is an image receiving material, and the image receiving surface 1 of this member is
A photoreceptor (negative sheet) 2 is superimposed on a. Masks 3 are pasted on the four sides of the image-receiving material 1. These masks provide a sharp and regulated edge of the image area.A thin bib is attached to the left end of the image-receiving material 1 as shown in FIG. (BIB)
4 is stuck and protrudes, and a developer body (POD) 5 is attached to this pib. A developer is enclosed in the PODS, and the transfer sheet) T is moved to the developing roller (fourth
11), the developing roller squeezes out the developer from the POD 5, and this developer is spread over the entire surface between the photoreceptor 2 and the image receiving surface 1a. Image receiving surface 1
Rails 6 are provided on both side edges of a, and the thickness of the spread developer is regulated by the thickness of these rails 6.

Furthermore, these rails 6 also restrict the protrusion of the developer at the side edges. A leader 7 formed by bending a thin material is attached to the tip (left end) of the bib 4. By inserting the photoreceptor into the folded portion as shown by arrow A, the leader 7 is assembled with the photoreceptor and the transfer sheet (particularly,
It functions as a gripping part for positioning with the image receiving surface 1a) and guiding the transfer sheet T. Excess developer spread on the image receiving surface 1a remains on the trap 8 attached to the rear end of the image receiving material 1, and does not stain the developing roller. Wedges 9, 9 are attached to both ends of the trap 8, and these wedges widen the gap between the developing rollers, so that the length of the trap 8 can be shortened.

In this embodiment, as shown in FIG. 2, a light shielding member 10 is provided on the surface 1b opposite to the image receiving surface 1a. For example, a light-shielding paper or a light-shielding film is attached. As a result, even if each member constituting the transfer sheet T does not have light-shielding properties, the transfer sheet T
can be discharged into a bright room and exposures can be repeated one after another before the development time ends. In other words, there is no need to wait in a dark room until the development time has elapsed, making handling easier. When the developing time has elapsed, it is preferable to notify the user with an alarm means such as a buzzer. Every time a buzzer etc. sounds, beer apartments are released in the order of exposure.

FIG. 3 shows an example in which the present invention is applied to a transfer sheet that does not use a leader 7. The same reference numerals as in FIG. 2 indicate the same members. As shown in FIG. 4, this transfer sheet TI is produced by abutting the tip of the transfer sheet TI (i.e., the tip of the pig 4) and the tip of the photoreceptor 2 against the nip portion of the stopped developing roller 11, and positioning the two. Applicable to instant photographic devices that perform registration.

In this type of instant photographic device, since the transfer sheet is abutted against the developing roller, the bib 4 is required to have a certain degree of buckling strength and adhesive strength.

However, since the vip 4 will eventually be peeled off from the image receiving material 1, if the above-mentioned strengths are too strong, the handleability may be impaired. In order to avoid this, as shown in FIG. 5, it is preferable to extend the light shielding member 10 further forward (to the left) of the image receiving material 1 and attach the POD 5i to the extended portion 10a.

In each of the above-mentioned rows, a plurality of transfer sheets (T, TI) are sequentially developed and transferred and then discharged.

In order to make it easier to sequentially apply T2) to Beer Anosheet after the development end time has elapsed, it is preferable to print a serial number on the light shielding member 10 of each transfer sheet.

Effects According to the present invention, even when the back side of the image receiving material is not completely light-shielding, such as when the back surface is naturally white, it is possible to wait for the development time to elapse in a bright room. Furthermore, since there is no need to specially provide a thick light-shielding layer on the back surface of the image-receiving material, the entire -1 transfer sheet can be made thinner.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of one embodiment, FIG. 2 is a side view of the embodiment, FIG. 3 is a side view of another embodiment, FIG. 4 is a schematic diagram of the main parts of the instant photographic device, and FIG. The figure is a side view of yet another implementation. 2... Photoreceptor, 5... Developer bottle, T, T1. T
2... Transfer sheet, 1a... Image receiving surface, 10... Light shielding member, 10a...
Extension of light shielding member

Claims (3)

[Claims] (1) In a transfer sheet for instant photography, in which the colored layer surfaces of photoreceptors that have been exposed to light and have a latent image are superimposed via a developer, and after a predetermined period of time, development and transfer are performed to form an image. A transfer sheet, characterized in that a releasable light-shielding member is attached to a surface opposite to an image-receiving surface, which is a surface on which a color-forming layer surface of a photoreceptor is superimposed. (2) The transfer sheet according to claim 1, wherein the light shielding member extends from the image receiving surface, and a developer bottle is attached to the extended portion. (3) Claims 1 or 2, characterized in that a serial number is printed on the light shielding member so as to be visible.
Transfer sheet as described in section.