JPH04368940A - Splicing method for leader and photosensitive material for photography and conveying method for the same material - Google Patents

Abstract

PURPOSE:To obtain the superior conveyance performance of the leader, to secure the splicing between the leader and photosensitive material for photography (film), and facilitate operation for the splicing and separation. CONSTITUTION:The leader 1C has a flexible plate type leader main body 2 and layers 3 made of an elastic or cohesive material are formed as friction addition parts on one or both surfaces of the leader main body 2 in two belts in the length direction of the leader main body 2. Four projections 32 are formed at the leader tail end sides 31 of the layers 3. Those projections 32 are inserted into perforations 41 of a film 4 and then fused and solidified to connect the film 4 to the leader 1C.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reader, a method for joining photographic materials, and a method for transporting photographic materials.

0002

[Prior Art] Halogenated photographic silver light-sensitive materials (hereinafter referred to as "photosensitive materials") are light-sensitive materials for photographing, typified by color negative film and color reversal film, and light-sensitive materials for printing, typified by color paper and color reversal paper. It is broadly divided into

Conventionally, these photosensitive materials were processed only in large-scale photofinishing laboratories, but in recent years, with the development of small-scale processing systems using small automatic processing machines called minilabs, they have been processed at photo shops and other stores. But it's starting to be dealt with.

[0004] This small-scale processing system develops the color negative film brought by the customer, exposes color paper from the color negative film, and develops it to obtain a printed image. This can be done in a short time.

This system includes a film processor for developing color negative film, and a printer processor for exposing color paper from color negative film and developing it (Kanji Tokuda et al., Fuji Photo Film Research Report No. 32, 1987). year') is used.

In a film processor, for example, a plurality of processing tanks each containing a developing solution, a bleaching solution, a fixing solution, a washing solution, and a stabilizing solution, and a dryer are arranged side by side on a processing line, and a negative film is processed. The material is transported along a predetermined route, sequentially immersed in a processing solution in each processing tank for development processing, and is then passed through a dryer to be dried.

[0007] In this case, the conveyance of the negative film is carried out by attaching two negative films to a plate-shaped leader in parallel, conveying the leader in advance, and pulling the film.

On the other hand, in a printer processor, the negative film developed in the film processor is removed from the reader, and a device called a negative carrier (film carrier) installed in the exposure section feeds one negative film frame by frame. The images of the films that have passed the test are printed on color paper (
Photographic paper) is exposed to light and then developed.

By the way, in conveying the leader in a film processor, a plurality of consecutive small openings are provided at approximately equal intervals along the longitudinal direction of the leader at the center or one side edge (outside the film width) of the leader in the width direction. ,
This is accomplished by engaging the teeth of a sprocket or a protrusion formed on the outer periphery of an endless belt in this opening, and rotating the sprocket or endless belt.

However, during conveyance of the leader, the teeth or protrusions of the sprocket may fail to engage with the opening of the leader, or the teeth or protrusions of the sprocket that have once engaged with the opening may fall out of the opening. There is a problem in that the conveyance of the leader is not carried out reliably, and in some cases, the conveyance of the leader is stopped and the processing of the negative film is interrupted.

[0011] Also, the attachment of the negative film to the leader is accomplished by joining the rear end of the leader and the leading end of the negative film, and connecting them by pasting adhesive tape (splice tape) on both the front and back sides. However, this work is done manually and is time-consuming and labor-intensive.

Furthermore, when feeding the negative film to the printer processor, the negative film is removed from the leader so that it can pass through the negative carrier of the printer, but at this time as well, the work of peeling off the double-sided adhesive tape is necessary. is carried out, which also takes time and effort. Note that since the leader is usually reused, even if the negative film and the leader are separated by cutting the leading end of the negative film, it is necessary to peel off the adhesive tape from the leader.

Furthermore, with the above attachment method, there is a problem in that the adhesive tape connecting the leader and negative film may peel off or break during transportation of the leader and negative film, resulting in interruption of processing of the negative film. There is also.

[0014]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a reader and a photographic material which have excellent conveyance properties, which can reliably bond the reader and a photosensitive material for photographing, and which facilitate the work of joining and separating them. An object of the present invention is to provide a method for bonding photosensitive materials for use in photography and a method for transporting photosensitive materials for photographic use.

[0015]

[Means for Solving the Problems] Such objects are achieved by the present invention as described in (1) to (6) below.

(1) A flexible plate-shaped leader that is used with a photographic photosensitive material connected to its rear end, and at least one surface of which is made of an elastic or adhesive material. A leader characterized in that a friction applying portion is formed.

(2) The leader according to (1) above, wherein a protrusion is formed on the rear end side of the leader of the friction applying portion.

(3) A method of joining a photosensitive material for photographing having perforations to a leader according to claim 2, which comprises inserting the protrusion into the perforation at the tip of the photosensitive material for photographing, and then inserting the protrusion into the perforation. 1. A method for joining photosensitive materials for photographing, which comprises melting and solidifying the leading end of the photosensitive material for photographing to join the rear end of the leader.

(4) A photographic photosensitive material is bonded to the leader described in (1) above, and the friction-applying portion of the leader is brought into contact with at least one rotating roller, so that the outer peripheral surface of the roller and the friction-applying portion are brought into contact with at least one rotating roller. A method for conveying a photosensitive material for photographing, characterized in that the leader is conveyed by frictional force between the leader and the photosensitive material for photographing.

(5) Bonding the photosensitive material for photography to a leader by the method for bonding photosensitive materials for photography described in (3) above, bringing the friction applying portion of the leader into contact with at least one rotating roller, and A method for conveying a photosensitive material for photographing, characterized in that a leader is conveyed and the photosensitive material for photographing is pulled by a frictional force between the outer circumferential surface of a roller and the friction applying section.

(6) The above (4) or (5), in which guides are installed at both ends of the leader, and the guides regulate the conveyance path of the leader to convey the leader.
A method for transporting a photosensitive material for photography as described in .

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A reader, a method for bonding photosensitive materials for photographing, and a method for transporting photosensitive materials for photographing according to the present invention will be explained in detail below based on preferred embodiments shown in the accompanying drawings.

FIGS. 1, 2 and 3 are perspective views showing examples of the structure of the reader of the present invention. As shown in these figures, readers 1A, 1B and 1C of the present invention
has a flexible plate-shaped leader body 2, and on one or both sides of the reader body 2, a layer 3 made of an elastic or adhesive material is provided in a predetermined pattern as a friction imparting part. It is formed of.

The constituent materials of the reader body 2 include, for example, polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate (PET) and polybutylene terephthalate (PBT), polyamide, polyvinyl chloride, and polyphenylene sulfide (PPS). , polyethylene naphthalate (PEN)
, polyimide (PI), triacetylcellulose (TA
C) and the like, among which polypropylene and PET are particularly preferred.

The thickness of the reader body 2 is not particularly limited, but is about 0.05 to 1 mm, particularly about 0.1 to 0.0 mm.
It is preferable to set it to about 3 mm.

[0026] Examples of the constituent material of layer 3 include natural rubber, isoprene rubber, chloroprene rubber, butyl rubber,
Various rubbers such as fluororubber, butadiene rubber, styrene-butadiene rubber, ethylene propylene rubber, silicone rubber, chlorosulfonated polyethylene, urethane rubber, polysulfide rubber, acrylic rubber, epichlorohydrin rubber, Lavalon, Thermolan, Sanplane, Milastomer, Hytrel, Examples include various elastomers such as Tuftec, silicone resins, flexible polyvinyl chloride, polyethylene (especially medium density or low density PE), polypropylene, fluororesins, various soft resins such as ionomer resins, among others, The various rubbers or elastomers mentioned above are preferable in terms of their high coefficient of friction, and in particular, silicone rubber, urethane rubber, ethylene propylene rubber, chloroprene rubber, Lavalon, Thermolan, Sunplane, Hytrel, Tuftec, etc. are preferable in view of their high coefficient of friction. preferable.

Furthermore, the layer 3 may be formed by laminating two or more layers of different materials.

The thickness of the layer 3 (total thickness in the case of a laminate) is not particularly limited, but is approximately 0.2 to 5 mm, particularly 0.2 to 5 mm.
It is preferable to set it as about 3-1.5 mm.

Note that the method for forming the layer 3 is to apply a coating liquid containing the constituent material of the layer 3 to the surface of the leader body 2;
A method of drying this, a method of applying the melted constituent material of the layer 3 to the surface of the reader body 2, and cooling and solidifying it;
Examples include a method of adhering the sheet-like layer 3 to the surface of the leader body 2, and a method of integrally forming the leader body 2 and the layer 3 by two-color molding.

[0030] Such a layer 3 may be formed so as to cover the entire surface of the reader body 2, or may be formed partially as shown in the figure. When the layer 3 is formed partially, the formation pattern is not particularly limited. For example, as shown in FIG. 2, the layer 3 is formed in a dotted manner on the surface of the reader main body 2, or as shown in FIG. The layer 3 may be formed into a plurality of strips along the longitudinal direction of the reader main body 2 as shown in FIG. It may also be something you have.

When forming the layer 3 on both sides of the reader body 2, the formation pattern, thickness, constituent material, etc. of the layer 3 are as follows:
Each side of the reader body 2 may be the same or different.

In the present invention, the leader itself can be made of the same material as the layer 3, but from the viewpoint of reducing material cost and stiffness (elastic force) of the leader, layer 3 is
Preferably, the layer 3 is formed on the reader body 2 of a different material.

In the leader 1C shown in FIG. 3, two parallel belt-shaped layers 3 are formed along the longitudinal direction of the leader body 2 as friction imparting parts, and four strip-like layers 3 are formed on the rear end side 31 of the leader. A protrusion 32 is formed. These protrusions 32
is for inserting perforations 41 of film 4, which is a photosensitive material for photographing (see FIG. 4). Therefore, the formation position of each protrusion 32 is determined by the perforation 4.
1, and the dimensions of each protrusion 32 are such that the perforation 41 can be inserted therein.

Each protrusion 32 is made of the same material as layer 3.
It is preferable that it is formed integrally with, for example, it can be formed by embossing.

[0035] The height of each protrusion 32 is approximately 1 to 10 mm.
In particular, it is preferably about 2 to 5 mm.

When forming such protrusions 32, as will be described later, the protrusions 32 are melted or
Since it solidifies, the constituent materials of the layer 3 and the projections 32 are
Thermoplastic elastomers such as Lavalon, Thermolan, Sunplane, Hytrel, Milastomer, Tuftec,
Thermoplastic resins such as polyethylene and polypropylene are preferred.

In the illustrated example, a total of four protrusions 32 are formed, two on each side, but the number, shape, and pattern of the protrusions 32 are not limited to those illustrated. In addition,
In order to securely fix the film 4, the number of protrusions 32 formed is preferably about 2 to 6, particularly about 3 to 4. Furthermore, as will be described later, when an opening 42 for inserting a protrusion is formed at the tip of the film 4,
It is preferable to provide a number of protrusions equal to the number of openings 42 (one in FIG. 6).

Next, a method of joining photosensitive materials for photographing using the reader 1C will be explained.

As shown in FIG. 4, after cutting and removing the tongue at the tip of the film 4 to be joined, the perforation 41 near the tip of the film 4 is inserted into each protrusion 32 of the leader 1C.

Next, using a heat sealer, for example, each protrusion 32 is heated, particularly thermocompression bonded, to melt it, and then cooled and solidified. As a result, as shown in FIG. 5, the molten solidified material 33 of the protrusion 32 comes into close contact so as to cover at least the perforation 41 into which the protrusion 32 was inserted, and the tip of the film 4 is fixed to the rear end of the leader 1C. are joined together.

The protrusions 32 may be melted by ultrasonic waves, high frequencies, microwaves, laser beams, etc. Depending on the material of the protrusions 32, the protrusions 32 may be melted (dissolved or softened) using chemicals such as solvents. ) and then solidify it.

According to such a joining method, the films 4 can be joined by simply melting and solidifying the protrusions 32, and the operation is extremely simple, and it is possible to join the films 4 by simply melting and solidifying the protrusions 32. Compared to this, the bonding strength is higher, and the film 4 is removed while the leader 1C is pulling the film 4.
This prevents an accident in which the reader 1C separates from the leader 1C.

In FIG. 3, one film 4 is bonded to one leader 1C, but in the present invention,
Two or more films 4 may be joined side by side to one leader.

For leaders without projections 32, such as the leaders 1A and 1B, the method of joining the film 4 is not particularly limited. For example, adhesive tape (splice tape) or adhesive may be used. This may be done by adhesion, fixing with a stapler, or the like.

FIG. 6 is a perspective view showing another example of the structure of the reader of the present invention. In the leader 1D shown in the figure, the width of the leader body 2 is approximately equal to the width of the film 4 to be bonded. When the film 4 to be joined is, for example, 110 film, 135 film, 120 film, or school photo, the width of the leader body 2 is 16.
mm, about 35 mm, about 63 mm, and about 70 mm.

In this way, by making the width of the leader 1D almost equal to the width of the film 4, when the developed film 4 is passed through an existing negative carrier (film carrier) (automatically or manually), Leader 1D
It is possible to pass through the reader and film 4 as they are without separating them, and each screen on the film can be inspected, exposed, etc., and there is an advantage that the effort associated with separating the reader and film is unnecessary.

[0047] In this leader 1D, the layer 3 is formed in the shape of a band along the longitudinal direction of the leader almost at the center in the width direction of the leader main body 2, and on the rear end side 31, there is a layer 3 in the width direction of the leader main body 2. A single protrusion 34 similar to the one described above is formed approximately at the center.

When joining the film 4 to the leader 1D, an opening 42 is formed at the leading end of the film 4, for example, by punching, and the protrusion 34 is inserted into this opening 42.
As will be described later, the protrusion 34 is melted and solidified to cover and seal the opening 42.

The number of protrusions 34 and openings 42 may be two or more, and the pattern in which they are formed is not particularly limited.

Film 4 bonded to leaders 1A to 1D
Examples of the film include color negative film, color reversal film, color positive film, black and white negative film, micro film, and movie film, and the size thereof is not particularly limited.

Next, a method of transporting the photosensitive material for photographing according to the present invention will be explained.

The film 4 is processed, for example, by an automatic processor 5 as shown in FIG. This automatic developing machine 5 is
On the processing line, there are a developing tank 51, a bleaching tank 52, and a fixing tank 53.
, a washing tank 54, a stabilizing tank 55, and a dryer 56 as shown in FIG.
They are arranged in this order from the middle right side, and each processing tank 51 to 5
5 contains a developing solution, a bleaching solution, a fixing solution, washing water, and a stabilizing solution, respectively. Further, the dryer 56 has a warm air supply means 57 that includes a fan and a heater.

Rollers (not shown), which will be described later, are installed inside each of the processing tanks 51 to 55 and the dryer 56 and at the boundaries thereof.
are installed in a predetermined arrangement, and these rollers transport the leaders 1A to 1D (hereinafter referred to as leader 1C) and the film 4 connected thereto along a transport path 6 as shown by the dashed line in FIG. be done. That is, leader 1
C and the film 4 connected thereto are repeatedly raised and lowered and are sequentially conveyed through each of the processing tanks 51 to 55 and the dryer 56 in a U-shaped path. It is sequentially immersed in liquid, rinsing water, and stabilizing liquid, and then dried.

After the development process is completed in this way,
Cut the leading end of film 4 and separate film 4 and leader 1.
The reader 1C is separated from the leader 1C and discarded. In this way, the film 4 can be removed from the leader 1C by simply cutting the leading end of the film 4, making the operation extremely simple. Note that when using the reader 1D, it is not necessarily necessary to separate the reader and the film.

In such an automatic developing machine 5, the leader 1C is conveyed by the method shown in FIG. That is, the film 4 is attached to the rear end by the above joining method.
The layer 3 of the leader 1C joined thereto comes into contact with the rotating roller 7, and is conveyed by the frictional force between the outer peripheral surface of the roller 7 and the layer 3. And film 4 is this leader 1C
be towed and transported.

In this case, at both ends of the reader 1C,
A guide 8 is installed to regulate the conveyance path 6 of the reader 1C. This guide 8 has a groove 81, and both end portions of the leader 1C are inserted into the grooves 81 of both guides 8 and conveyed.

The constituent materials of the roller 7, particularly the constituent materials of the outer peripheral surface of the roller 7, include, for example, polyvinyl chloride, polypropylene, polyethylene, ABS resin, polybutylene terephthalate (PBT), polyphenylene oxide (PPO), polyamide, Polyacetal (POM)
, phenolic resin, polyphenylene sulfide (PPS)
), various resins such as polyether sulfone (PES), polyether ether ketone (PEEK), and polytetrafluoroethylene, ceramics such as alumina, silica, and apatite, metals with corrosion resistance such as stainless steel, Inconel, titanium, and Hastelloy, Or any combination of these can be mentioned. In addition, in order to increase the frictional force with the leader 1C and further improve the conveyance performance, the same material as the above layer 3 is used as the constituent material of the roller 7, or the same material as the above layer 3 is used on the outer peripheral surface of the roller 7. It may be coated with the same material.

FIGS. 9, 10, 11, and 12 are side views showing an example of the arrangement pattern of the rollers 7 in each of the processing tanks 51 to 55 or the dryer 56, respectively. These will be explained in order below. Note that the description of the guide 8 is omitted in the figure.

In the structure shown in FIG. 9, the reader 1C has a layer 3 formed on one side of the reader body 2, and rollers 7 are provided on the layer 3 side of the leader 1C at predetermined positions along the conveyance path. are placed at intervals of

The total length of the leader 1C (the total length of the layer 3) is longer than the interval between adjacent rollers 7. This ensures that the layer 3 is attached to at least one roller 7 during the conveyance of the leader 1C.
The reader 1C can be continuously conveyed.

In this case, it is preferable that the leader 1C be pressed against the roller 7 side, so that the layer 3 and the outer peripheral surface of the roller 7 are in contact with each other with a predetermined contact surface pressure. Leader 1 to this roller 7
The pressure C may be performed by the guide 8 or by other means, such as a jet stream 9 of processing liquid or drying gas jetted toward the reader 1C.

The contact pressure between the layer 3 and the outer peripheral surface of the roller 7 is as follows:
0.001 kg/cm2 or more, especially 0.005 to 0.
It is preferable to set it as 05 kg/cm2. By setting such a contact surface pressure, particularly excellent conveyance properties can be obtained.

In the configuration shown in FIG. 10, the pair of rollers 7
, 7 are installed at predetermined intervals along the conveyance route.

[0064] The reader 1C may have the layer 3 formed on one side of the reader body 2 as shown in the figure, or may have the layer 3 formed on both sides of the reader body 2. It is conveyed while being held between a pair of rollers 7, 7.

The total length of the leader 1C (the total length of the layer 3) is longer than the interval between adjacent rollers 7 in the conveyance direction. As a result, the leader 1C is held between at least one pair of rollers 7 while the leader 1C is being transported, so that the leader 1C can be continuously transported.

In the configuration shown in FIG. 11, the reader 1C is
Layers 3 are formed on both sides of the reader body 2, and rollers 7 are alternately installed at predetermined intervals along the conveyance path on both sides of the reader 1C (a so-called staggered arrangement).

The total length of the leader 1C (the total length of the layer 3) is longer than the interval between adjacent rollers 7. This ensures that the layer 3 is attached to at least one roller 7 during the conveyance of the leader 1C.
The reader 1C can be continuously conveyed.

[0068] In this case, it is preferable that the leader 1C is pressed against the roller 7 side in the same manner as described above, so that the layer 3 and the outer circumferential surface of the roller 7 contact with the same contact surface pressure as described above.

In the configuration shown in FIG. 12, the arrangement of the rollers 7 is the same as that in the configuration shown in FIG. 11, and the reader 1C has layers 3 formed on both sides of the reader body 2.

The total length of the leader 1C (the total length of the layer 3) is longer than the interval between adjacent rollers 7 in the conveying direction on one side of the leader 1C. As a result, each layer 3 on both sides of the leader 1C comes into contact with at least one roller 7 while the leader 1C is being transported, so that the leader 1C can be continuously transported with excellent transportability.

In this case, the leader 1C may be pressed against the roller 7 side in the same manner as described above, so that the layer 3 and the outer circumferential surface of the roller 7 are brought into contact with the same contact surface pressure as described above.

In the case of the structure shown in FIG. 12, the layer 3 may be formed only on one side of the leader 1C.

In the present invention, the arrangement pattern of the rollers 7 may be an appropriate combination of the structures shown in FIGS. 9 to 12, or may be any other structure.

The reader, the method for bonding photosensitive materials for photographing, and the method for transporting photosensitive materials for photographing according to the present invention have been described above based on the configuration example shown in the drawings, but it goes without saying that the present invention is not limited thereto.

[0075]

Effects of the Invention As described above, according to the present invention, the reader has excellent transportability, and in particular, in a leader having a protrusion on the rear end side of the leader in the friction applying section, the reader and the photosensitive Since the bonding with the material is reliable, the photographic photosensitive material does not come off the leader during transportation, and the work involved in bonding and separating them is also easy.

In particular, when the width of the leader is made equal to the width of the photosensitive material to be bonded, testing, printing, etc. can be performed without separating the leader from the photosensitive material after development.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a configuration example of a reader of the present invention.

FIG. 2 is a perspective view showing another configuration example of the reader of the present invention.

FIG. 3 is a perspective view showing another example of the structure of the reader of the present invention.

FIG. 4 is a perspective view showing steps of a method for bonding photosensitive materials for photographing according to the present invention.

FIG. 5 is a perspective view showing steps of a method for bonding photosensitive materials for photographing according to the present invention.

FIG. 6 is a perspective view showing another configuration example of the reader of the present invention.

FIG. 7 is a side cross-sectional view schematically showing an example of the configuration of an automatic developing machine for carrying out the method of conveying a photosensitive material for photographing according to the present invention.

FIG. 8 is a perspective view showing an example of a method for transporting a photosensitive material for photographing according to the present invention.

FIG. 9 is a side view showing an example of an arrangement pattern of rollers that convey the leader of the present invention.

FIG. 10 is a side view showing an example of an arrangement pattern of rollers that convey the leader of the present invention.

FIG. 11 is a side view showing an example of an arrangement pattern of rollers that convey the leader of the present invention.

FIG. 12 is a side view showing an example of an arrangement pattern of rollers that convey the leader of the present invention.

[Explanation of symbols]

1A~1D Reader 2 Reader body 3
Layer 31 Leader rear end side 32
Protrusion 33 Melt solidified material 34 Protrusion 4 Film 41 Perforation 42
Opening 5 Automatic developing machine 51
Developing tank 52 Bleaching tank 53 Fixing tank 54 Washing layer 55 Stabilizing layer 56 Dryer 57 Hot air supply means 6
Conveyance path 7 Roller 8 Guide 81 Groove

Claims (6)

[Claims] Claim 1: A flexible plate-shaped leader that is used with a photographic photosensitive material connected to its rear end, and at least one surface of which is made of an elastic or adhesive material. A leader characterized in that a friction applying portion is formed thereon. 2. On the rear end side of the leader of the friction applying section,
The leader according to claim 1, wherein a protrusion is formed. 3. A method for bonding a photosensitive material for photographing having perforations to a leader according to claim 2, wherein the protrusion is inserted into the perforation at the tip of the photosensitive material for photographing, and then the protrusion is melted. . A method for joining photosensitive materials for photographing, which comprises solidifying and joining the leading end of the photographic material to the rear end of the leader. 4. A photographic photosensitive material is bonded to the leader according to claim 1, and the friction-applying portion of the leader is brought into contact with at least one rotating roller, and the outer circumferential surface of the roller and the friction-applying portion are brought into contact with each other. A method for conveying a photosensitive material for photographing, characterized in that a leader is conveyed by frictional force to pull the photosensitive material for photographing. 5. A photosensitive material for photographing is bonded to a leader by the method of bonding a photosensitive material for photographing according to claim 3, and the friction applying portion of the leader is brought into contact with at least one rotating roller, and the friction applying portion of the leader is brought into contact with at least one rotating roller. A method for conveying a photosensitive material for photographing, characterized in that the leader is conveyed to pull the photosensitive material for photographing by the frictional force between the outer circumferential surface and the friction applying section. 6. The method of transporting a photosensitive material for photographing according to claim 4, wherein guides are installed at both ends of the leader, and the guides regulate a transport path of the leader to transport the leader.