JPS62235946A - Photosensitive belt material container - Google Patents

Abstract

PURPOSE:To obtain a container which has thorough light shieldability, has the small drawing-out and rewinding resistance of a photosensitive belt material and obviates the generation of meandering and injury by forming light shielding push cloth provided to the leading-out port of a belt-like photosensitive material and the upper and lower tongues thereof of knitting structure, and forming a recessed line part to one end part thereof and a projection part to the other. CONSTITUTION:The plush cloth 17a consisting of knitted goods having a long pile part A at one point and short pile parts B at two points is provided via an adhesive agent 31 to the upper tongue 27 of the leading-out port 19 of the photosensitive belt-like material container. The plush cloth 17b having the long pile parts A at two points and the short pile part B at one point is provided to the lower tongue 28 thereof. These projecting line parts 29 and the recessed parts 30 fit to each other in approximately contact with each other. The injury on the belt-like photosensitive material is, therefore, obviated and the leading-out and rewinding of the photosensitive belt-like material are smoothly executed while said material is thoroughly shielded of light.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field] The present invention relates to the packaging of photosensitive strips such as rolled photographic paper and photographic film.

More specifically, the present invention relates to a light-shielding container provided with a telescope at the photosensitive strip outlet as described above for loading under sunlight or room lighting.

[Conventional technology]

There are various types of light-shielding containers for strip-shaped photographic materials. For example, Utility Model Application Publication No. 53-20934, Utility Model Application Publication No. 5
Publication No. 5-88980, Publication No. 113543/1983, Publication No. 7575/1975 9% Publication No. 59-367
No. 36, US Pat. No. 4,148,395, and US Pat. No. 4,179,028.

This is disclosed in US Pat. No. 4,272,035 and the like. Japanese Utility Model Application Publication No. 55-113543 describes the following as a container for a strip-shaped photographic light-sensitive material, which protects the strip-shaped photographic light-sensitive material wound into a roll and can be easily loaded into an apparatus under room light. The following are proposed.

That is, in this container, a slit-shaped outlet from which the strip-shaped photographic material is drawn out is formed in a magazine formed in a light-shielding manner, and a foamed pad or fer), p4 y-d, is formed in this outlet to ensure light-shielding properties. is provided. A band-shaped photographic material wound into a roll is housed inside.

In this way, a light-shielding member for the purpose of preventing light from entering the light-shielding container and exposing the strip-shaped photographic light-sensitive material inside the container is generally installed at the part of the light-shielding container for the strip-shaped photographic light-sensitive material from which the strip-shaped photographic light-sensitive material is pulled out. is provided. There are various types of light shielding members, but those made of cloth as an internal material are called terremp cloth. Although this terremp cloth is expensive, it is widely used because of its advantages, such as being less likely to cause scratches on the surface of the strip-shaped photographic material, unlike the foamed pads and the like.

Conventionally, there was a type of terempu cloth whose side cross section is shown schematically in Fig.
Publication No. 539). This terempu cloth is formed by weaving pile yarn 4 into a ground cloth 1 having a woven structure. Ground cloth 1
is formed by weaving warp threads 2 and weft threads 3, as shown in the schematic plan view of FIG.
Coreless pile yarn is used, which is obtained by crimping a flexible yarn such as viscose or acetate. The ground fabric 1 is impregnated with a filler adhesive 5 for fixing the thread 4 and the ground fabric 1. To make such a terempu cloth, the ground weft and warp yarns 2 and 3 are used to weave on a flat surface, and at the same time, the pile warp yarns 4 are twisted and woven to form a double velvet, and this is made into a roughly average pile length. It is common to cut it.

In addition, there was another conventional terempu cloth as shown in Fig. 11, which is a schematic side cross-sectional view (Japanese Patent Laid-Open No. 54
-36924). This terempu cloth has an electrostatic flocking structure, and is formed by providing an adhesive layer 5 on a container base 6 made of metal or the like, and electrostatically flocking short fibers 7.

Furthermore, there was also a technology to ensure the light-shielding properties of the outlet by directly planting hair on the thermoplastic resin that forms the outlet of the container (
(Japanese Unexamined Patent Publication No. 57-190948) These terempu cloths have approximately uniform thickness.

In other words, the lengths of the 14 tiles located on the outer surface were approximately the same, and they were provided on the upper tongue and the upper tongue of the outlet so that the 9 tiles on the outer surface were in contact with each other to ensure light-shielding properties. .

[Problem that the invention seeks to solve]

By the way, the terempu cloth not only has a light-shielding function to ensure the light-shielding properties in the light-shielding container, but also has flexibility so as not to damage the strip-shaped photosensitive material when it is pulled out or rewound. It is necessary to prevent lint from adhering to the surface of the strip-shaped photosensitive material and cause a malfunction, that is, to prevent hairs from falling out, and to ensure that the pile is oriented so that the strip-shaped photosensitive material does not meander. It is.

However, in the case of the light-shielding terremp fabric shown in FIG. When fabric is assembled into a light-shielding container for strip-shaped photosensitive material, which tends to fray and shedding hair during the fabric making process, making the production process complicated and increasing production costs, it is useful when pulling out or rolling in the strip-shaped photosensitive material. Friction with the surface of the strip-shaped photosensitive material may cause fraying or hair loss, and the debris may adhere to the photosensitive film of the strip-shaped photosensitive material and cause damage. In particular, when used at the outlet of a release light container for a roll of color photographic paper loaded with indoor light, the photosensitive film using gelatin swells under high temperature and high humidity and becomes sticky, resulting in stains on the photosensitive film. This caused problems in practical use.

In addition, controlling the relationship between the slit opening width of the drawer opening and the length of the upper tongue and the length of the 9-hole fabric placed on the upper tongue within a predetermined range will allow the photosensitive strip light-shielding container to perform its function. It is very important. However, in the past, it has been very difficult to accurately manage these lengths, and various problems have occurred.

In other words, even if a container is manufactured with a constant slit opening width, if the length of the light-shielding terempu cloth changes greatly, the pull-out and unwinding resistance of the strip will vary greatly, especially if the pile length becomes long. In the JIS 135 type photographic film cartridge, the winding torque of the camera is large, and the holes perforated on both sides of the photographic film break and break the photographic film, making it impossible to take pictures. In addition, cameras with automatic winding and unwinding mechanisms, such as modern cameras, require a large motor load and cannot be driven. Other photosetting roll film, roll photographic paper, thermal paper,
Photosensitive roll film and roll paper for industrial materials,
Substantially the same results are obtained when a strip-shaped photosensitive material such as a photosensitive resin roll film is used under sunlight or in a light-shielding container for indoor photon loading.

On the other hand, if the length of the pile is shortened, the above problem will be solved, but it will not be possible to ensure the most important light-shielding property for a light-shielding container for photosensitive materials.

Even if the pile length of the light-shielding terempu cloth could always be manufactured to a uniform length, it would be very difficult to form the slit opening width of the drawer opening to be uniform, and the slit opening width would change. For this reason, there were problems with the light-shielding properties, winding up, and unrolling properties of the photosensitive strip container.◎Generally, the slit opening width of the photosensitive strip container drawer is also placed on the upper tongue and upper tongue of the slit opening. Since the length of the pile of the light-shielding terempu cloth, that is, the thickness of the terempu cloth, also varies, it has been impossible to maintain a constant light-shielding property and draw-out resistance value.

In addition, in the case of the light-shielding terempu cloth with an electrostatic flocking structure shown in Fig. 11, although the production process is slightly simplified, it has a simple structure in which adhesive is applied to tricot etc. and then electro-flocked to fix the pile. P4 does not stick or has weak adhesion.
It was impossible to put it into practical use because of the large number of gaps in the illumination.

The present invention improves these problems of the prior art, and can maintain complete visibility even if the slit opening width of the outlet is wide or the thickness of the terremp fabric is short, and the photosensitive strip material is It is an object of the present invention to provide a photosensitive strip container that has low resistance to pulling out and unwinding and is free from meandering and scratches.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention is intended to form a terempu cloth with a knitted structure, and to form fitting grooves and protrusions on each terempu cloth.

That is, the photosensitive strip container of the present invention includes a core around which the strip-shaped photosensitive material is wound into a roll, a drawer opening from which the strip-shaped photosensitive material is pulled out, an upper tongue of the drawer outlet, and a colored container. In a light-shielding container having a light-shielding terremp cloth,
The light-shielding terempu cloth has a knitted structure, and is characterized in that one side of the fabric has a concave line and the other side has a convex line that approximately fits into the concave line. It is something.

The upper tongue of the outlet of the photosensitive strip container of the present invention and the light-shielding terremp cloth provided on the upper tongue have grooves formed on one side and protrusions formed on the other side. The concave portion and the convex portion are provided in a substantially fitted state when the telescope cloth is provided on the upper tongue and the upper tongue to prevent light from passing through to the inside of the container.

Therefore, as long as light-shielding properties can be ensured, the concave portions and the convex portions can be formed into various straight or curved shapes such as rectangular, triangular, and arcuate shapes. In addition, the substantially fitted state may be in a state in which they are in contact with each other, or in a state in which the protruding strip is inserted into the concave strip with a gap.

It is sufficient that there is at least one set of the concave stripes and the convex stripes, but they may be formed in several strips, or both may be formed on the same light-shielding terempu cloth. Furthermore, the shape of these grooved stripes and protruding stripes in a plan view does not necessarily have to be linear, and may be formed, for example, in a V-shape or the like.

In addition, the length of the light-shielding terempu cloth is appropriately determined depending on the shape of the concave stripes and the convex stripes, but for example, in the case of a rectangular shape, the long pile should be 0.8 mm or more, and the short pile is 0.7- or more, that is, the length of the long pile is short /4
It is preferable that the length obtained by subtracting the length of the file is 0.14 or more.

The reason for this is that when these long piles and short piles are placed on the upper tongue and the upper tongue, they interlock at a point of 0.1 or more, so the light shielding properties are reduced. This is because even if there is, it can be secured.

The light-shielding terempu cloth has a loop-shaped glossy or fluffy/4'
yl and the combination of these two, /4'yl. The loop-shaped pile is a pile formed in a loop (loop) shape, and the fluffy i4 pile is a pile formed in a fluffy shape by opening the loop-shaped glossy pile.

These nobles are colored at the 9th corner to ensure light-blocking properties. This coloring may be done using dyes, pigments, etc. as long as light blocking properties are ensured, and the color is not particularly limited, but black is preferred in order to ensure sufficient light blocking properties.

The fraying and shedding of the cut surface occurs during fiber opening (shirring) / 4' It is preferable to use loop-shaped piles in order to prevent the generation of yarn waste, but terempu cloth In terms of surface flexibility and light-shielding properties, it is inferior to opened fluffy pile, and since the looped pile Terremp fabric has directionality, it is difficult to pull out or unwind the strip-shaped photosensitive material from the slit opening. Sometimes it becomes meandering and scratches are more likely to occur.

Therefore, it is preferable to use a mixture of 90 to 20% loop pile and 10 to 80% fuzzy pile in proportions within the above range depending on the type of strip-shaped light-sensitive material. It is preferable that the looped glossy piles and the fluffy piles on the light-shielding terempu cloth be arranged in a uniform state depending on the mixing ratio. In addition, the fuzzy pile is formed taller than the loop-like pile, so that the surface part of the terempu cloth has the fuzzy pile, and the middle part and below has both the fuzzy pile and the loop-like pile. This is preferable in terms of prevention of hair removal, flexibility, light-shielding properties, etc.

There are various methods for making a light-shielding terempu cloth with such a structure, but in each method, a loop-shaped pile is formed into a knitted fabric with a different surface. Velpet, which is made by weaving twill yarn into a ground fabric with a woven structure, such as that disclosed in Japanese Utility Model Publication No. 46-20539, is inferior to light-shielding terempu fabric with a knitted structure in terms of quality, and is therefore unsuitable for the present invention.

The first method for making terempu cloth with loop-shaped piles is to apply so-called horizontal knitted stockinette, such as circular knitting or flat knitting, to a loop-shaped pile.
There is a method of making a light-shielding terempu cloth by brushing a so-called warp-knitted stockinette such as tricot knit, raschel knit, Milanese knit, etc. into a loop-shaped /4' coil.

Methods for directly producing knitted fabrics having loop-shaped piles without napping include a method using a circular knitting machine and a method using a circular sock knitting machine. A typical circular knitted twill is the sinker pile. (For details, see Textile Engineering vol. 1.33, N17 of the Textile Machinery Society Journal)
1980) P390-397).

Particularly preferred is knitted fabric that uses black-colored polyester fibers, acrylic fibers, or fibers containing 50% or more of nylon fibers and has loop-shaped no.9 coils produced on a circular knitting machine.
After manufacturing stockinette using a sinker, 4-il type light-shielding terempu cloth, and a tricot vertical knitting machine, the horizontal threads were hooked with a needle and pulled out in a loop shape and raised to create a loop-shaped i4-il fabric. It is a French pile type blackout cloth. To use it as a light-shielding terempu cloth, 10 to 80% of the loop-shaped pile formed in this way must be cut and opened (
A light-shielding terempu cloth with 90 to 20% of the looped pile remaining (shirred) is preferred.

Further, in order to prevent the shape of the light-shielding terempu cloth from deforming, the base cloth may be impregnated with a heat-set sealing adhesive.

In the present invention, the ground fabric and pile of the light-shielding terempu cloth are synthetic fibers made of thermoplastic resins (nylon fibers, acrylic fibers, polyester fibers, vinylon fibers, vinyl chloride fibers, vinylidene copolymer fibers, polypropylene fibers, polyethylene fibers, Polycarbonate fibers, etc.) can be cut using a melt cutting method such as heat slitting or ultrasonic slitting to prevent the cut surface from fraying, and the quality is uniform and has low hygroscopicity. It is preferable because it is superior to natural fibers in various respects such as good heat setting properties and high physical strength.

However, depending on the required characteristics, single fibers such as synthetic fibers, rayon, acetate, cotton, silk, etc., specially processed fibers, or fibers obtained by mixing and spinning two or more types of fibers may be selectively used.

The above-mentioned light-shielding thermometer cloth is provided on the upper tongue and the upper tongue of the outlet of the light-shielding container for the strip-shaped photosensitive material. Band-shaped photosensitive materials include all kinds of strip-shaped photosensitive materials such as color photographic paper, computerized phototypesetting film, computerized phototypesetting paper, JIS 135 type photographic film (Leica Film λ thermal paper, photosensitive resin film, microfilm, etc.). This includes all containers that store a strip-shaped photosensitive material wound into a roll around a core and draw out the strip-shaped photosensitive material from an outlet.For example, light-shielding containers for color photographic paper, film cartridges, These include light-shielding containers for phototypesetting, light-shielding containers for microfilm, etc.

In the present invention, various methods can be used to provide the light-shielding terreme cloth on the container body, and all known methods can be used.

For example, there is a method in which various types of adhesives are applied to the area where the terempu cloth is attached on the container body, and then a light-shielding terempu cloth cut to a predetermined size is affixed, or a hot-melt adhesive is applied to the page after applying a sealant to the terempu cloth. There is a method of pasting the adhesive by cutting it to a predetermined size, placing it at the attachment location, and melting and reactivating it using heat, ultrasonic waves, high frequency waves, etc. Further, there are also methods of using a sealing adhesive that serves as both a sealing agent and an adhesive, a method of using a double-sided adhesive tape, and all known bonding methods are possible. The method of using double-sided adhesive tape is often applied when the container body is made of a material that is easily deformed and has low rigidity, such as paperboard or corrugated cardboard.

Preferably, a foamed sheet, a foamed coating layer, or an elastic layer as described in JP-A-59-201848 is provided between the container body and the light-shielding terrestrial cloth. Particularly preferred is a method using a double-sided adhesive tape in which adhesive is applied to both sides of a foam sheet.

[Effect]

In the photosensitive strip container of the present invention, the light-shielding terempu cloth is formed in a knitted structure, so that the pile is structured to go around the warp of the ground cloth. Therefore, the pile threads will not come off and the band-shaped photosensitive material will not be damaged.

Even if the light-shielding terempu cloth is not brought into contact or strongly contacted, the light is blocked by the convex stripes and does not penetrate into the interior. In addition, the strip-shaped photosensitive material is not pressed by the light-shielding terremp cloth, and the pulling out and rewinding operations become smooth.

〔Example〕

Hereinafter, one embodiment of the photosensitive strip container of the present invention will be described based on the drawings.

The first (b) is an enlarged sectional view of the outlet portion of the photosensitive strip container. In this figure, a terremp cloth 17m with one long pile portion A and two short pile portions B is provided on the upper tongue 27 of the slit opening of the outlet 19 or 23 via an adhesive 31, and on the other hand, on the slit opening The tongue 28 is provided with a terem cloth 17b having two long t4 pile portions A and one short pile portion B. And the long pile part A of the above-mentioned one terempu cloth 17m is the convex strip part 29.
Therefore, the short /4 ile part B of the other telescope cloth 17b
is a grooved line portion 30, and these protruding line portions 29 and grooved line portions 30 substantially abut and fit together.

FIG. 2 is an enlarged cross-sectional view of another embodiment, in which a light-shielding terremp cloth 17 is provided, which has an increased number of long pile portions A and short pile portions B compared to the example shown in FIG.

The fpJ3 diagram is used in Figures 1 and 2.
14 is a schematic side cross-sectional view of a preferable semi-cut type light-shielding terempu cloth 17.

FIG. 4 is a schematic diagram showing the structure of the knitted fabric. In FIG. 3, reference numeral 11 denotes a ground fabric made of stockinette (knitted fabric) formed by knitting warp threads 12 as shown in FIG. 4. This ground cloth 1
The warp yarns 12 of 1 are provided with loop-shaped p'll piles 14 and fluff-like j4 piles 15 approximately alternately to form a loop-shaped pile 14.
Particularly preferred is a light-shielding terempu cloth that is of a semi-cut type in which the fluffy/matrix fibers 15 are approximately half and half. Further, most of the tip of the fluffy pile 15 is generally formed to protrude beyond the tip of the loop-shaped pile 14. In addition, it is characteristic that the long part A and the short part of these IJI files have a striped structure.

FIG. 5 is a schematic side cross-sectional view of another example of the light-shielding thermometer cloth 17. The light-shielding terremp cloth 17 of this example is a light-shielding terremp cloth that is knitted only with the fluff-like pile 15 impregnated with the filler adhesive 16 on the ground cloth 11, and is structured in a striped manner with long and short pile lengths. .

FIG. 6 shows an example of a photosensitive strip container used for color photographic paper, computer-generated photographic paper, and the like.

In this figure, reference numeral 18 denotes a container body, which is made of plastic or paper. A drawer opening 19 is formed at a corner of the container body 18, and an upper tongue 27 and an upper tongue 2 of the outlet are formed.
A light-shielding telescope cloth 17 having long and short segments of /4 tile is provided on both sides of the fabric.

Also provided inside is a core 25 around which color photographic paper 20 as a band-shaped photosensitive material is wound in a roll.

FIG. 7 shows an example in which the photosensitive strip container shown in FIG. 6 is sealed with a moisture-proof film 21 in order to further ensure product preservation, moisture-proofing properties, and, if necessary, light-shielding properties. . This moisture-proof film 21 is a laminated film of an aluminum vacuum-deposited thermoplastic resin film layer and a heat-sealing layer.
It is made of a film having moisture-proofing properties and, if necessary, light-shielding properties, such as a thermoplastic resin blown silane film. Then, the container body 18 is sealed with the sealing portion 24 by heat sealing or the like.

FIG. 8 shows an example of a JIS 135 type photographic film or Torone, which is a photosensitive strip container intended for JIS 135 type photographic film. In this figure, the reference numeral 22 is the cartridge main body, and this Noctrone main body 22
Two plates with a small gap are formed protruding from the drawer opening 2.
3 is formed. A light-shielding telescope cloth 17 having long and short striped piles is provided on both sides of the outlet 23, and a core (spool) 25 on which JIS 135 type photographic film is wound in a roll is provided inside the box. .

Next, the results of an experiment comparing the characteristics of the product of the present invention and conventional products will be explained.

(Inventive product 1) The light-shielding terempu cloth has a semi-cut pile with the knitting structure shown in Fig. 3, and the warp (ground thread) 12 is made of 5
Using 0 denier polyester yarn and 50 denier polyester yarn also manufactured by Kijin ■ as Nonoil 14.15,
Stockinette (knitting) using a tricot knitting machine (vertical knitting machine)
1. After manufacturing the horizontal thread and pulling it out in a loop by hooking the thread running horizontally with a needle, the long pile A in Fig. 1 becomes 1. h1 Short twill B is cut and opened (shirred) to a pile length of 0.8 m to make a fluffy twill of 30 m.
%, looped iJ? It has a tricot knit structure with 70% fiber.

The light-shielding container for color photographic paper loaded with room light is shown in FIG. 6, in which this light-shielding terremp cloth is attached to the upper tongues 27 and 28 of the drawer opening using double-sided adhesive tape.

(Product of the present invention ■) A 50-denier nylon yarn manufactured by Toshi ■ was used as the warp (ground yarn) 12, and a 50-denier nylon yarn also manufactured by Toshi ■ was used as the twill 15, with a double raschel knitting structure as shown in Figure 5. A light-shielding terempu cloth having a side cross-sectional structure consisting of long and short feather-like piles 15 as shown was prepared. this is,
The cross-sectional structure shown in Fig. 1 is a light-shielding terempu cloth consisting only of fluff-like piles that have been cut and opened (shirred) to a pile length of 1.1 layers (long pile A f)E and 1.1 layer (short pile B) of 0.9 m (short pile B). Then, the JIS 135 type JIS 135 m photographic film cartridge drawer opening 23 upper tongue 27 and upper tongue 28 of the JIS 135 m photographic film drawer opening 23 of Fig. 8 were affixed with hot melt adhesive so that these long and short segmented /4 holes fit together. A light-shielding container for photographic film.

(Conventional product ■) The light-shielding terempu cloth is Velpet with the weaving structure shown in Figure 9, with 150 denier rayon thread as the warp (ground thread) 2, pile 4 and L thread/# pile length 1, 1 wm. - A length of 75 denier rayon thread is used. This is a light-shielding container for color photographic paper loaded with indoor light, as shown in FIG. 6, which is the same as product I of the present invention.

(Conventional product ■) This is a JIS 135 type photographic film cutronais, which is a light shielding container for JIS 135 type photographic film, as shown in Fig. 8, which is the same as the present invention product ■, which uses the same light-shielding terrestrial cloth as the conventional product I.

The results of comparing the characteristics above are shown in Table 1.

Evaluation is based on the following ◎: Very good.

O: Excellent.

・；Within practical limits.

M: Needs improvement, problems.

×: Not practical.

The test method is as follows: A: Judging the light power of color photographic paper or JIS 135 type photographic film (FUJI Color HR-100ASA sensitivity 1oo) by current processing when exposed to light for 30 minutes under an illumination intensity of 80,000 lux.

B: Color photographic paper or JIS 135 type photographic film (FUJ
When I-color HR-100) was pulled out, the cut surface was frayed, and the cut pieces were broken.

Pile loss was determined from the state of adhesion to the strip of color photographic paper or JIS 135 type photographic film (FUJI Color HR-100) photoresist film that was in contact with the light-shielding terrestrial cloth.

C: Color photographic paper or JIS 135 type photographic film (
FUJI Color HR-100) is used as a strip of color photographic paper or JIS when pulling out or unwinding from the slit opening.
135 type photographic film (FUJI color HR-Zoo
) Judging from the meandering condition.

D = Strip color photographic paper or JIS 135 type photographic film (FUJI Color HR-100) through slit opening 1
Strip color photographic paper or J when pulled out at a speed of m/s
IS 135 type photographic film (FUJI color HR-1
00) Judging from the occurrence of scratches on the photoresist film surface.

E: Cost ratio when the conventional product is set as 100.

Substantially similar results were obtained when the material was used as a light-shielding terremp cloth for a light-shielding container of the Japanese Patent Publication No. 59-36736 format.

〔Effect of the invention〕

The light-shielding terremp cloth of the photosensitive strip container of the present invention is formed with grooves and protrusions that fit into each other, even if the tips of the piles of the upper and lower terremp cloths are not in contact with each other with a predetermined density. Light is blocked in the middle to ensure light-blocking properties. Therefore, even if the width of the slit opening of the outlet is made wide, or the pile length of the terremp cloth is made short, light-shielding properties can always be ensured. In addition, since the upper and lower telescope cloths can be weakly contacted or left in contact within a range that can ensure light-shielding properties, the resistance to pulling out and unwinding the strip-shaped photosensitive material can be greatly reduced, and the light-shielding container can be Manufacturing suitability is also improved and the occurrence of defective products can be greatly reduced.

In addition, since the blackout terempu cloth is constructed as a knitted fabric,
The pile is formed integrally with the base fabric, so there is almost no generation of cutting debris during the manufacturing and processing processes, and the strip-shaped photosensitive material is in contact with the light-shielding terremp cloth even under high temperature and high humidity. The adhesion of the Noryl cut layer and the tanning and pile wandering on the photoresist film surface are extremely poor. Furthermore, the pile does not fall off even without impregnating it with a filler adhesive, and it is possible to attach it to a light-shielding container using only double-sided adhesive tape.

Furthermore, it is less expensive than the conventional velpet weave light-shielding terempu cloth, and the knitting speed is several times faster than the weaving speed, so it can be manufactured efficiently.

[Brief explanation of drawings]

FIG. 1 is an enlarged sectional view of the outlet portion of one embodiment of the photosensitive strip container according to the present invention, and FIG. 2 is an enlarged sectional view of the outlet portion of another embodiment. FIG. 3 is a schematic side sectional view of a light-shielding terempu cloth, FIG. 4 is a schematic diagram showing the structure of the same knitted fabric as above, and FIG. 5 is a schematic side sectional view of another example of the shading terempu cloth. Figure 6 is a perspective view of a photosensitive strip container used for color photographic paper, etc. Figure 7 is a perspective view showing an example of the same sealed with a moisture-proof film, and Figure 8 is a container for carrying JIS 135 type photographic film. This is the photosensitive strip container in question. Fig. 9 is a schematic diagram of a side cross section of a conventional light-shielding terempu cloth, Fig. 10 is a schematic diagram of a plane of the same base cloth, and Fig. 11 is a side cross-sectional view of another conventional shading terempu cloth. be. 17... Light-shielding terempu cloth, 19.23... Drawer opening,
20... Band-shaped photosensitive material, 25... Core, 27...
Upper tongue, 28... Upper tongue, 29... Convex ridge, 30...
Concave section. Patent issuer: Fuji Photo Film Co., Ltd. Agent
Patent attorney 1) Masahiro Naka and 1 other figure 1 figure 2 figure 3 figure 40 5th cause 1f

Claims (3)

[Claims] (1) A light-shielding container having a core around which a strip-shaped photosensitive material is wound into a roll, an outlet from which the strip-shaped photosensitive material is pulled out, and colored light-shielding terrestrial cloth provided on the upper and lower tongues of the outlet. The light-shielding terempu cloth is formed in a knitted structure, and one side thereof is formed with a grooved line, and the other side is formed with a convex line that substantially fits into the grooved line. Photosensitive strip container (2) The concave portion and the convex portion are formed to have a rectangular cross section, and the pile length of the convex portion is 0.8 mm or more, and the length of the pile of the concave portion is determined from the length of the pile of the convex portion. The photosensitive strip container according to claim 1, wherein the length after subtracting the length is 0.1 mm or more. (3) The light-shielding terempu cloth is composed of a loop-shaped pile formed of sinker pile or French pile, and a fluff-like pile formed by opening a part or substantially all of the loop-shaped pile. Photosensitive strip container according to item 1 or 2