JPH03129341A - Packaging member for photographic sensitive material and package using the same - Google Patents

Abstract

PURPOSE:To all waste packaging members to be substantially converted into soil when it is dumped by forming it with a synthetic polymer composition degradable by microrganisms and not producing a substance having any harmful action on the photographic sensitive material at a prescribed temperature. CONSTITUTION:The packaging member is formed with the synthetic polymer composition degradable by microorganisms and not producing any harmful substances on the photographic sensitive material at a temperature of 60 deg.C. The polymer to be used as the microorganism degradable polymer is as follows; starch derived synthetic polymers, modified starch derived synthetic polymers, hide powder, fine cellulose derive synthetic polymers, synthetic polymers produced by microorganisms, polycaprolactone derivd synthetic polymers, polyvinyl alcohol, polyethylene glycol, polyurethanes, nylons, polyesters, photodegradable synthetic polymers, CO-copolymerized polyethlene and photodegradation promotor added synthetic polymers and the like, thus permitting the obtained photosensitive material packing member to be small in environmental pollution load.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a degradable packaging member for photographic materials, and more particularly, it relates to a packaging member for a photographic material that is degradable by microorganisms (including those promoted by photodegradation) and/or The present invention relates to a packaging member for photographic materials molded from a photodegradable synthetic polymer.

[Conventional technology]

Packaging materials for photographic materials, such as light-shielding magazines, plastic cartridges, cartridges, discs, light-shielding containers for loading in bright rooms, lens-equipped film unit bodies (packaging materials such as the product name Usharundes), spools, plastic cases, light-shielding Films, light-shielding bags, etc. are made of various polyethylene resins, various polypropylene resins, various polystyrene resins, various polyamide resins, various polyester resins, and various ethylene copolymers containing light-shielding substances in order to ensure physical strength, moisture resistance, and light-shielding properties. Resin (EVA, E E A
It is molded using a highly stable synthetic polymer that is difficult to decompose, such as SL-LDPE, acid-modified polyolefin, EAA, ionomer, etc.), and ethylene vinyl alcohol copolymer resin.

For example, in Japanese Utility Model Application Publication No. 59-46356, a resin Mi containing dimethylpolysiloxane as a lubricating agent is disclosed.
A photographic film cartridge constructed of samurai is disclosed. Furthermore, Japanese Patent Application Laid-Open No. 1-260438 proposes a packaging material for photosensitive materials made of a resin composition containing two types of polyethylene resins, carbon black, a fatty acid and/or a fatty acid compound, and an antioxidant. .

The packaging material formed by molding the synthetic polymer described above is stable against light, heat, various chemicals, bacteria, and solutions such as water, from the viewpoint of ensuring the quality of photographic materials over a long period of time. is an extremely excellent and optimal packaging material. Although some of the packaging members for photographic materials are recovered and reused after use, most of them have been disposed of as industrial waste by incineration or landfill.

[Problem to be solved by the invention]

In the case of packaging members for photosensitive materials, the amount of resin used is smaller than in other fields, and most of the resin is collected and reused, so this has not been a problem.

However, as silver halide photosensitive materials and lens-attached films containing them have become popular and their usage has rapidly increased, there has been a growing demand for packaging materials for photosensitive materials that cause little or no environmental pollution. .

The synthetic resins used for packaging materials for photosensitive materials include various polyethylene resins, various polypropylene resins, various polystyrene resins, etc. in order to ensure physical strength, dimensional accuracy, complete light shielding properties, moisture resistance, etc. without adversely affecting the photographic materials. Various polyamide resins, various polyester resins, polycarbonate resins, etc. were used.

However, the above-mentioned packaging materials made of thermoplastic resin have a high calorific value, and if incinerated in large quantities, it will affect the durability of the incinerator, and even if it is landfilled, it will remain stable against heat, water, light, microorganisms (bacteria), and chemicals. Therefore, there is a problem that it does not disassemble or rot.

The purpose of the present invention is to provide a synthetic polymer for use in packaging materials for photographic materials, which, when disposed of after its intended purpose has been fulfilled, will lose strength or decompose due to naturally occurring microorganisms and/or light, and will eventually be degraded into soil. An object of the present invention is to provide a packaging member for photographic materials using a synthetic polymer that is substantially reduced.

[Means to solve the problem]

The above object of the present invention has been achieved by a degradable packaging member for photographic materials, which is characterized in that it is molded using a microbial-degradable and/or photo-degradable synthetic polymer containing a light-shielding substance during resin molding. .

That is, the packaging member for photographic light-sensitive materials of the present invention has microbial degradability and/or photodegradability when molded with resin;
It is characterized by being molded from a synthetic polymer composition that does not generate substances that have a harmful effect on photographic light-sensitive materials when humidity is adjusted for 5 days at 0''C and 60% RH. The main body of the film unit with lenses is characterized by containing a light-shielding substance in the microbially degradable and/or photodegradable synthetic polymer composition.Furthermore, the photographic film package includes:
It is configured to include the above-mentioned packaging member for photographic light-sensitive materials.

The degradable synthetic polymers used in the present invention can be roughly divided into two types: microbially degradable synthetic polymers and photodegradable synthetic polymers as shown below.

(1) Microbially degradable synthetic poly”7- (a) Synthetic polymer blended with starch (b) Synthetic polymer blended with modified starch (C) Hekai Polymer blended with skin powder and micronized cellulose (d)
Synthetic polymers produced by microorganisms (polyhydroxy polyester, etc.) (e) Synthetic polymers containing polycaprolactone (polymer itself is biodegradable by microorganisms) (f) PVA, PE
G, polyurethane, nylon, polyester, etc. (2) Photodegradable synthetic polymer (a) CO copolymerized polyethylene resin (b) Synthetic polymer added with photodegradation accelerator (photosensitizer), etc. Microbially degradable synthetic polymer used in the present invention I will explain about it.

The microbially degradable synthetic polymer according to the present invention refers to a synthetic polymer (including essentially biodegradable) that is decomposed by microorganisms when disposed of naturally.

When discarded, the photosensitive material is blended with a photodegradable synthetic polymer that is photodegraded by sunlight and promotes decomposition by microorganisms, or a non-hazardous material is included in the photographic light-sensitive material. You can also do that. For example, as a photodegradable (photodegradable) synthetic polymer, Norio Tanaka and Manabu Seno co-authored Industrial Materials Vol. 24, No. 6, pp. 61-6.
7 pages (1976), Masao Kato, Japan Rubber Association Journal, Vol. 48, 1
Materials described in No. 1, pages 665 to 672 (1975) can be used.

Microbially degradable synthetic polymers are tested according to ASTM (American Standard Test Method) G21-70 (1985 Reapprov
ed), polystyrene resin and polyethylene resin were used as comparison samples, and the growth of microorganisms was evaluated, and since the former was grade 1 or 2, it was determined that the growth of microorganisms (mold) by culturing was higher than this. It refers to something, that is, something that is in the 3rd or 4th grade.

The microbially degradable synthetic polymer used in the present invention has 0ECD
Test Guideline 301 C, Modified MITI Exam (
It is preferable to use a synthetic polymer that gives a positive result for readily biodegradable properties according to I), and a synthetic polymer that gives a positive result for essentially biodegradable properties according to the modified MITI test (If).

In addition, the microbially degradable synthetic polymer used in the present invention is 6
It does not generate any substances that have a harmful effect on photographic light-sensitive materials at 0°C. This harmful effect includes, for example, fogging and deterioration of storage stability, and examples of substances having such harmful effects include hydrogen cyanide, nitrile group-containing gas, and hydrogen sulfide.

The generation of substances with harmful effects at 60°C was determined by pulverizing the sample into fine chips and heating it at 60°C.
For example, in the case of a gas containing nitrile groups, 1 g of synthetic polymer
This is because it is possible to detect the occurrence of (approximately O, OS μg or more) and predict harmful effects when used in conjunction with photographic materials.

In addition, the microbially degradable synthetic polymer used in the present invention is 4
Even when heated and humidified at 0° C. and 60% RH for 5 days, no substances harmful to the photographic material are generated. These harmful effects include, for example, fogging, sensitivity, gradation fluctuations, and deterioration of storage stability, and examples of substances that have such harmful effects include hydrogen cyanide, nitrile group-containing gases, and hydrogen sulfide.

Check the presence or absence of substances with harmful effects at 40℃ and 60%.
The humidity control for 5 days is specified by crushing the sample into fine chips and heating and controlling the sample at 40°C and 60% RH for 5 days to remove extremely small amounts of gas that may have harmful effects on photosensitive materials (for example, nitrile group-containing gases). This is because it is possible to detect the occurrence of about 0.05 μg or more per synthetic polymer itself and predict harmful effects when used in conjunction with photographic materials.

As mentioned above, the microbially degradable synthetic polymer used in the present invention is microbially degradable after disposal, and may have harmful effects on photographic materials, such as fogging or abnormalities in sensitivity or gradation. It is required that it does not cause any generation or deterioration of storage stability. Furthermore, it is easy to shape the bottom, ensures light blocking properties, abrasion resistance, antistatic properties, etc. during use, has sufficient physical strength, has low production costs, and is easy to mix with light blocking substances. It is preferable to have similar characteristics.

The microbially degradable synthetic polymer used in the present invention is, for example, Polymer, Vol.
36 (1973), amide bond (-NHCO-), urethane bond (-NHCO-0-) in the main chain.
, aliphatic ester bond (aliphatic-GO-0
-), imide bond (-N,.

・NH, or]3÷)N-> or sulfonyl bond (-3
Synthetic polymers such as polyamides,
Preferred are resins such as polyurethane, polymers having aliphatic ester bonds in their main chains, polyimides, and polysulfones.

Furthermore, there are microbially degradable synthetic polymers produced by fermentation that are reliable in microbial degradability and harmless to photographic materials, but are expensive.

Representative examples are described below.

(1) Polyester 1! (Mfcrobial Pof
yesters)Poly(3・hydroxybut
yrate): Abbreviation P (311B) (2) Copolyesters (A) Po
1y(3. hydroxybutyrate-C(1
-3-hydroxyValerate): Abbreviation P
(3HB-CO-3HV) (3HB) (3HV) (■ Commercially available as Biopol from C-I.

)(17) Po1y(3・hydroxybutyr
ate-CO-4-hydroxybutyrate)
: Abbreviation P (3HB-Co-4HB) (3HB)
(4HB) (c) Copoly (3・hydroxyalkan)
oate): Abbreviation (3) Polysaccharides (a) Bacterial cellulose ([1) Dextran (c) Pullulan (=) Curdlan 0> Xanthan gum (e) Gellan gum (4) Polyamino acids (a) ε-polylysine ( ) γ-polyglutamic acid (iii) Poly T-methyl-L-glutamate Micro-P (311A) is added to the microbially degradable synthetic polymer used in the present invention.
It is preferable to mix biodegradable plasticizers such as straight chain aliphatic hydrocarbons, such as straight chain aliphatic hydrocarbons having 8 to 32 carbon atoms, aliphatic polyesters, such as polyglycolic acid, polylactic acid, or their esters. It is also possible to improve microbial degradability by mixing these microbially degradable plasticizers with non-microbially degradable synthetic polymers such as polystyrene, polycarbonate, and polyalkylene.

Furthermore, as a promoter of microbial decomposition, starch (also called starch, which also includes modified starch, such as corn starch, potato starch, and rice starch), which is preferred because it is inexpensive and harmless to photographic materials, is blended into synthetic polymers at high concentrations. There are commercially available masterbatches, and typical commercially available product names and manufacturers are listed below, but the present invention is not limited thereto.

(a) “BCO5TAR” Canada SL, Lauren
ce 5tarch Co.

Microbially degradable synthetic polymer masterbatch &1lt
c seems to be as follows.

Cornstarch 40t% (starch surface treated with silane coupling agent) Polyethylene resin 60wt% soybean oil
Small amount (unsaturated fatty acids) (0) ”EC0STARplus Canada St, Lawrence 5tarch Co
.

(a) Organic metals with UV activity are added to EC05TAR, giving it photodegradability and microbial degradability.

(c) 'polyclean USA Archer Daniels Midland
Co.

This is a masterbatch for microbially degradable synthetic polymers, and the composition is almost the same as "EC0STAR" in (a) above.

(:) 'poly-Grade If' US A+
wpacet Co.

Almost the same composition as (a) above.

(Book) Poly-Grade II” Ampace, USA
tCo.

Almost the same composition as above (rl).

The amount added is 0.5% to 30% by weight in terms of starch concentration.
, preferably 1% to 20% by weight, particularly preferably 2% by weight
% to 10% by weight.

Representative examples of the photodegradable (also referred to as photodegradable) base polymer used in the present invention include the aforementioned "industrial materials" and the materials described in the "Journal of the Japan Rubber Association," but the present invention is limited to these. Other materials may also be used as long as they are photodegradable synthetic polymers that do not have a harmful effect on the photographic material and can ensure the necessary properties as a packaging member for photographic material. Particularly preferred photodegradable synthetic polymers are described below.

(1) A base polymer containing starch whose surface has been treated with a silane coupling agent, an unsaturated fatty acid, and an organic metal. (2) A copolymer resin of a vinyl ketone compound and a polyethylene resin, a polypropylene resin, or a polystyrene resin.

(3) Ethylene/C○/VAC terpolymer resin.

Oxidative decomposition proceeds even in the absence of light.

(4) Cerium stearate additive (for PE, PP)
Or polymer chain scission due to radical generation with cerium caprylate additive (for PS).

(5) Metal-organic compounds such as iron stearate and 4-
Combination with additives like chlorobenzophenone (combination of photodegradation accelerator and pro-oxidant).

(6) Adding iron compounds and nickel or cobalt compounds to polyethylene resin, etc.

(7) Combining antioxidants and transition metals (iron, nickel, etc.) and adding them to synthetic polymers (8) Copolymer resin of ethylene and carbon monoxide (carbonyl groups dispersedly introduced into the linear chain) (as ECO copolymer) Three companies in the United States, DuPont, UCC, and Dow Chemical, are currently industrializing it).

To improve the light-shielding properties, lubricity, physical strength, etc. of molded articles made from microbially degradable and/or photodegradable synthetic polymers used in the present invention, and to impart antistatic properties, microbially degradable properties, and/or photodegradability. Therefore, antistatic agents, light-shielding substances, lubricants, reinforcing materials, fillers, etc., which are advantageous for environmental pollution, can be used in combination. Representative examples of these are described below.

The reinforcing material is preferably glass fiber, carbon fiber or asbestos fiber.

Typical examples of internal antistatic agents used in the present invention include nonionic ones such as ethylene oxide adducts of higher alcohols, ethylene oxide adducts of alkylphenols, and esters (e.g., higher fatty acids and polyvalent antistatic agents). Alcohol ester, higher fatty acid polyethylene
glycol esters, etc.), polyethers, amides (
For example, higher fatty acid amides, dialkylamides, ethylene oxide adducts of higher fatty acid adducts, etc.) are effective.

Examples of anionic acids include alkylallylphosphonic acid, adipic acid, glutamic acid, alkylsulfonates, alkylsulfates, polyoxyethylene alkylphosphates, fatty acid salts, alkylbenzenesulfonates,
For cationic systems for which alkylnaphthalene sulfonates and sodium dialkyl sulfone succinates are effective, amines (e.g., alkylamine phosphates, Schiff bases, adoamines, polyethylene ions, amidoamines and metal Preferred examples include salt complexes, alkyl esters of ξ) acids, imidacillins, amine ethylene oxide adducts, and quaternary ammonium salts.

For zwitterionic systems, N-acyl sarcosinate,
Preferred examples include aminocarboxylic acid derivatives, alanine type metal salts, imidacilline type metal salts, carboxylic acid type metal salts, dicarboxylic acid type metal salts, cyamine type metal salts, metal salts having an ethylene oxide group, and the like.

As substances that do not fall within the above range, inorganic electrolytes, metal powders, metal oxides, kaolin, silicates, carbon powders, and carbon fibers are also effective in the present invention. Graft polymerization, polymer blending, etc. are also effective.

Next, typical examples of nonionic antistatic agents used as external antistatic agents include polyhydric alcohols (e.g., glycerin, sorbitol, polyethylene glycol, polyethyl oxide, etc.), polyhydric alcohol esters, and higher alcohol ethylene- There are oxide adducts, alkylphenol ethylene oxide adducts, fatty acid ethylene oxide adducts, amides, ado-ethylene oxide adducts, amine-oxidized ethylene adducts, and in amphoteric systems, carboxylic acids ( For example, alkylalanine, etc., sulfonic acids, etc. are effective.

For anionic systems, carboxylates, sulfuric acid derivatives (e.g.
Preferred examples include alkyl sulfonates, etc.), phosphoric acid derivatives (eg, phosphonic acids, phosphoric esters, etc.), and polyester derivatives.

In the cationic type, alkylenes (e.g. alkyla fruit,
amidoamine, esteramine, etc.), vinyl nitrogen derivatives, quaternary ammonium salts (e.g., ammonium salts containing an amide group, ammonium salts containing ethylene oxide, etc.), acrylic ester derivatives, acrylic amide derivatives, vinyl ether derivatives, etc. There is.

The names and manufacturer's names of typical commercially available lubricants that promote microbial decomposition without adversely affecting photographic materials are listed below, but the present invention is not limited thereto.

(1) Silicone lubricant; various grades of dimethylpolysiloxane, carboxyl-modified silicone oil (Shin-Etsu Silicone, Toshi Silicone, etc.) (2) Oleic acid amide lubricant; Armoslip CP (
Lion Akzo), Neutron (Japan Manufacturing Co., Ltd.), Neutron E-18 (Japan Manufacturing Co., Ltd.), Amide ○ (Nitto Chemical), Al7 Rho E-10 (NOF), Diamond 0-200 (Nippon Kasei Co., Ltd.) , Diamond G-200 (Nippon Kaei), etc. (3) Erucic acid ξ-de-based lubricant; Alflow P-10 (NOF, Neutron S (Nippon Seika), etc.) (4) Stearic acid amide-based lubricant: Alflow S -10
(NOF), Neutron 2 (Japan Industrial Co., Ltd.), Diawan Tsudo 200 (Nippon Kasei), etc. (5) Bis fatty acid amide lubricants; Bisamide (Nippon Kasei), Diamond 200 Bis (Nippon Kasei), Armowax EBS ( (Lion, Akzo), etc. (6) Alkyluane ≧ lubricant: Electro Stripper TS-2 (Kao Soap), etc.

(7) Hydrocarbon lubricant; liquid paraffin, natural paraffin, microwax,
Synthetic paraffin, polyethylene wax, polypropylene wax, chlorinated hydrocarbon, fluorocarbon (8) fatty acid-based lubricant; Higher fatty acid (preferably C+z or higher), oxyfatty acid (9) ester-based lubricant; Lower alcohol ester of fatty acid, fatty acid polyester Hydrolic alcohol ester, polyglycol ester of fatty acid, fatty alcohol ester of fatty acid Q (D alcohol-based lubricant; polyhydric alcohol, polyglycol, polyglycerol 00 metal soap; lauric acid, stearic acid, ricinoleic acid, naphthenic acid, oleic acid, etc.) higher fatty acids and Li, Mg, Ca, S
r, Ba,, Zn, Cd, All! ,,S'n,
Compounds with metals such as Pb When used in the packaging of photographic materials, the amount of these lubricants that do not cause any adverse effects varies depending on the type, but is generally 0.
．． 01 to 5.0% by weight, not only when added alone but also when
More than one type may be used in combination. The preferred fatty acid amide lubricant has 8 to 50 carbon atoms, particularly preferably 15 to 35 carbon atoms.

In order to mold a packaging member using a microbially degradable and/or photodegradable synthetic polymer, various molding methods can be selected depending on the composition and physical properties of the microbially degradable and/or photodegradable synthetic polymer.

Next, typical molding methods are shown.

(1) Secondary processing for spinning...non-woven fabric, light-shielding fabric (2) Laminate molding (3) Film forming (4) Calendar bottom shape (sheet) (5) Compression molding (6) Transfer molding ( 7) Injection molding (8) Ejection molding (9) Extrusion molding (sheets, films) 00) Blow bottom shape 00 Inflation molding (film) 02) Foam molding, etc. The light-shielding materials used in the present invention are shown below.

In particular, carbon black, which is photochemically stable, has a large light-shielding ability, has a resin oxidation prevention effect, an anti-blocking effect, an antistatic effect, and a long-term heat-seal strength retention effect, and is inexpensive, and microbially degradable skin powder and starch. It is preferable to include an organic compound such as wood flour as a light-blocking substance. Among carbon blacks, the free sulfur content is 2.
00ppm or less, average particle size 10-120u, pH
is 6.0 to 8.5, oil absorption is 60d/100g or more,
Furnace carbon black with a volatile content of 3.0% or less is particularly preferred.

In addition to the above-mentioned carbon black, the following substances can be used as the light-shielding substance.

(1) Inorganic compounds A, oxides: silica, diatomaceous earth, aluminum oxide, titanium oxide, iron oxide, zinc oxide, magnesium oxide, antimony oxide, barium ferrite, strontium ferrite, beryllium oxide, pumice, pumice balloon , alumina fibers, etc. B, hydroxides...aluminum hydroxide, magnesium hydroxide, basic magnesium carbonate, etc.C0 carbonates...calcium carbonate, magnesium carbonate,
Dolomite, dawsonite, etc., (sulfite)...calcium sulfate, barium sulfate, ammonium sulfate, calcium sulfite, etc.E, silicates...talc, clay, mica, asbestos, glass fiber, glass balloon, glass peas, Calcium silicate, F.

G.

Montmorillonite, bentonite, etc. Carbon...Graphite, carbon fiber, carbon hollow spheres, etc.Other...Iron powder, copper powder, lead powder, tin powder, stainless steel powder,
Burr pigment, aluminum powder, molybdenum sulfide, poron fiber, silicon carbide fiber, brass fiber, potassium titanate, lead zirconate titanate, zinc borate, barium metaborate, calcium borate, sodium borate, aluminum paste, etc. (2) ) Organic compound wood flour (pine, oak, sawdust), shell fiber (almond, peanut, rice husk), various colored fibers,
For example, carbon black, which is particularly preferable as a light-absorbing light-shielding material, will be described in detail, such as cotton, jute, paper strips, cellophane strips, nylon fibers, polypropylene fibers, starch, aromatic polyamide fibers, crushed paper, and cotton linco.

The amount added is preferably 0.05 to 20% by weight, 0.05
If it is less than 0.5% by weight, the light shielding property, antistatic property, antiblocking property, and antioxidation property will be insufficient and the kneading cost will increase (if the wall thickness of the packaging member is 200 nm or less, 0.5% by weight or more) Preferably) If it exceeds 20% by weight, the physical strength will decrease, the moldability will deteriorate, and more dust will be generated.1.
Contaminates photographic materials with black color.

Furthermore, the amount of moisture absorbed increases, which not only causes foaming during molding and deteriorates the appearance, but also increases the generation of free sulfur, which deteriorates the storage stability of the photographic material.

It is preferable to knead carbon black into the lens-equipped photographic material package so that the surface reflection density of the package is 1.2 or more, preferably 1.4 or more, from the viewpoint of ensuring light-shielding properties.

Carbon black can be used in various forms such as dry color liquid color, paste color, master patch pellets, compound color pellets, and granular color pellets, but the master patch method using master patch pellets is preferred in terms of cost, prevention of workplace pollution, etc. It is preferable. In the special publication No. 40-26196, there is! Japanese Patent Publication No. 43-10362 describes a method for preparing a masterbatch of polymer-carbon black by dispersing a carbon blank in a solution of a polymer dissolved in a solvent. It describes how to make it.

The applicant also published a resin composition for colored master bunches in JP-A No. 6.
This is proposed in the publication No. 3-186740.

Carbon black can be classified by raw material: gas furnace black, oil finesse black, channel black, anthracene black, acetylene black, ketchiene carbon black, conductive carbon black, thermal black, lamp black, oil smoke, powder smoke,
There are animal black, vegetable black, etc.

In the present invention, furnace carbon black is preferable for the purpose of improving light shielding properties, cost, and physical properties. Carbon blacks that are expensive but have an antistatic effect include acetylene carbon black, conductive carbon black, and Ketchen, which is a modified by-product carbon black. Carbon black is preferred. If necessary, it is also preferable to mix two or more types according to the required characteristics.

For the purpose of improving moldability, various thermoplastic resins are preferably added to the microbially degradable and/or photodegradable synthetic polymer.
It can be used by kneading up to 0% by weight, particularly preferably up to 30% by weight.

For example, the following resins can be included.

(1) Ethylene-butene-1 copolymer resin (2) Propylene-butene-1 copolymer resin (3) Ethylene-propylene-butene-1 terpolymer resin (4) Polybutene-1 resin (5) Styrene resin ( 6) Polymethyl methacrylate resin (7) Styrene acrylonitrile resin (8) ABS resin (9) Polypropylene resin (10) Crystalline propylene-α-olefin copolymer resin (11) Modified polypropylene resin (12) Modified polyethylene resin ( 13) Polypropylene/maleic anhydride graft copolymer resin (14) Chlorinated polyolefin resin (mainly chlorinated polyethylene resin) (15) Ethylene-based ionomer resin (resin in which a copolymer of ethylene and unsaturated acid is cross-linked with metal) ) (16) Polymethylpentene resin (17) Vinyl chloride/propylene copolymer resin (18)
Ethylene-vinyl alcohol copolymer resin (19) Cross-linked polyethylene resin (cross-linked by ray irradiation, chemical cross-linking, etc.) (20) Polyisobutylene resin (21> Ethylene-vinyl chloride copolymer resin (22) 1
．． 2-Polybutadiene resin (23) L-LDPE resin (24) LDPE resin (25) MDPE resin (26) E E A resin (27) E V A resin (28) Propylene-ethylene copolymer resin, etc. Also microbially degradable And/or in the photodegradable synthetic polymer, various additives required depending on the required properties may be added in necessary amounts, for example 0. O
It may be added in an amount of about 1 to 30% by weight, preferably,
Use additives that are microbially degradable and/or photodegradable and are advantageous for environmental conservation.

Representative examples of additives are described below, but the present invention is not limited thereto.

(Additive types) (Representative examples) (1) Plasticizers; phthalate esters, glycol esters, fatty acid esters (2) Stabilizers; zinc-based, alkaline earth metal-based, organic tin-based, etc. (3) Electrostatic charge Prevention recommendations: Cationic surfactants, anionic surfactants, nonionic surfactants, bifacial active agents, various carbon blacks, metal powders, graphite, etc. (4) Flame retardants: Phosphate esters, halogenated phosphoric acids Esters, halides, inorganic substances, phosphorous-containing polyols, etc. (5) Filling materials: alumina, kaolin, clay calcium carbonate, mica, talc, titanium oxide, silica, etc. (6) Reinforcing materials: glass roving, metal fibers, glass fibers , glass milled fiber, asbestos fiber, carbon fiber, etc. (7) Coloring agent; Inorganic pigment (Af, Fe, 0., Ti
Zn, ZnO1CdS, etc.), pigments (carbon black, dyes, etc.), etc. (8> Blowing agents: inorganic blowing agents (ammonia carbonate, soda bicarbonate), organic blowing agents such as troso-based, azo-based), etc. (9) Prevention of deterioration Agents: UV absorbers, antioxidants, metal deactivators, peroxide decomposers, etc. (10) Cuffing agents: Silane-based, titanate-based, chromium-based, aluminum-based, etc.

A feature of the microbially degradable and/or photodegradable synthetic polymer compositions used in the present invention and the packaging members using them is that they do not have any harmful effects on the photographic materials contained therein.

This harmful effect can be tested, for example, as follows: 100 g of chips of several lengths of the packaging member sample used in the present invention, together with the photographic material used for packaging, are placed at a temperature of 4.
60% RH (relative humidity) with 0°C and 100g of glycerin
for 5 days! 11 A sample is prepared in a moistened stainless steel sealed container of about 6000 aj, and the photographic light-sensitive material is evaluated based on the results of fogging, sensitivity, and gradation variation due to development processing. Alternatively, this sample may be tested according to 3B, 1.1.
1. Treat the sample in a manner similar to the aeration method, and collect the generated hydrogen cyanide in a sodium hydroxide solution. The cyanide ions in this collection liquid are determined by the above-mentioned test method 38.2 pyridine-pyrazolone absorptiometric method.

The packaging member for photographic light-sensitive materials according to the present invention is a member used for packaging photographic light-sensitive materials, such as cartridges, magazines, plastic cartridges, spools, disks, plastic cases (round, square, and valve-fitting). type, hinge type, etc.), light-shielding containers for loading in bright rooms, light-shielding films, laminated films, packaging bags, light-shielding terem cloth, blister packaging, etc., as well as films with lenses (product names: Utsurun desu Hi, Utsurun). It is used for the packaging unit bodies of flash cameras, etc., and for photographic film cartridges with a special structure as disclosed in Japanese Patent Application Laid-Open No. 1-231045.

The packaging member of the present invention has -i
Silver halide photosensitive materials, diazo photosensitive materials, photosensitive resins, direct positive photosensitive materials, self-developing photosensitive materials, photosensitive materials for lithographic printing ( It can be used for packaging various photosensitive products such as heat-sensitive materials, magnetic tapes, and pressure-sensitive materials in addition to photosensitive materials such as PS plates).

In addition to the above-mentioned photographic materials, it is also suitable as a packaging member for photosensitive materials such as foodstuffs, pharmaceuticals, and chemicals whose quality deteriorates due to exposure to light, oxygen, etc.

〔Example〕

Next, examples of the present invention will be described. However, it is not limited to this.

Example 1 St, Lawrence 5tarch Co, Lt.
d biodegradable plastic masterbatch (product name [I
C05TAR) 15% by weight, 801% by weight of copolyamide resin (trade name: Ube Nylon) manufactured by Ube Industries ■, and 5% by weight of ethylene-modified resin (trade name: Atmer) manufactured by Mitsui Petrochemical ■; 20% by weight of ethylene modified resin (trade name: Atmer) manufactured by Mitsui Petrochemical ■ and the above biodegradable plasticif masterbatch (trade name: EC0ST)
AR) 10% by weight and ethylene 4- manufactured by Mitsui Petrochemical ■
Methylpentene-1 copolymer resin 66.95n%, fatty acid amide lubricant manufactured by Lion Akzo (trade name: Armoslip cp>o, osz%), and Furnace carbon black manufactured by Mitsubishi Kasei■5% by volume. thickness consisting of 3
A photographic material packaging member sample kl was obtained, which was made of a light-shielding simultaneous two-layer coextruded blown film with a total thickness of 50 mm and an inner layer of 0 tna. Using this packaging material, a three-sided sealed flat bag is made, 50 sheets of photographic film are inserted into the protective paper, and the bag is sealed and JIS Z-
A vibration test was conducted using 0232.

As a comparative product, a light-shielding single-layer blown silane film sample a having a thickness of 50 nm and consisting of 97% by weight of a conventionally used low-density homopolyethylene resin and 3% by weight of furnace carbon black was used.

As a result, sample Nal according to the present invention is surprisingly superior to comparative products in terms of vibration test results, physical strength such as tensile strength, tear strength, impact puncture strength, and bag tearing strength, as well as heat seal strength and heat seal suitability. In addition, after use, the outer polyamide resin layer, which accounts for 40% of the packaging material, and 6
It was found that all of the inner polyolefin resin layer, which accounted for 0%, was decomposed by microorganisms.

The material of each sample of the packaging member for photographic light-sensitive materials used in the present invention is determined according to ASTM G21-70 (Reapproved
It was tested using the microbial degradability test method (visual observation method) described in 1985) and was shown to be essentially biodegradable. The results are shown in Table 1.

In all of Samples ①, ②, and ② in Table 1, the amount of the predetermined nitrile group-containing gas produced was 0.01 ng/g or less.

Example 2 Bleached kraft paper with a basis weight of 35 g/nf was laminated on the outside of a flexible polyurethane foam (polyether-based, apparent density 0.045 g/d) with a thickness of 2 mm via an adhesive layer around the wet laminate, On the inside, a 20% thick extrusive laminate film layer consisting of 55% by weight of low-density homopolyethylene resin, 42% by weight of ethylene-butene-1 copolymer resin, and 5% by weight of furnace carbon black is directly applied. Packaging member sample NC made of film
Obtained LII.

As a comparative product, a packaging material sample having the same layer structure as the sample NaI of the present invention was used, except that a cross-linked polyethylene foam having a thickness of 21 fil was used instead of the flexible polyurethane foam having a thickness of 2 fil.

As a result, inventive product sample ■ not only has excellent physical strength such as tear strength and impact puncture strength, but surprisingly, the bleached kraft paper and flexible polyurethane foam are decomposed by microorganisms after use. More than 99% of this will return to the soil.

Example 3 Polyamide resin manufactured by Ube Industries (trade name: Ube Nylon)
70.5% by weight, 15% by weight of glass fiber, 10% by weight of cornstarch surface-treated with a silane coupling agent, 2% by weight of soybean oil, 2% by weight of calcium stearate, and 0.5% by weight of the furnace carbon black. Using the resin composition, an injection molding machine manufactured by Sumitomo Heavy Industries (2) with a mold clamping pressure of 150 tons was used to obtain a main body sample (2) of a photosensitive material packaging unit with a lens according to FIG. 1 of JP-A-63-226643.

FIG. 1 shows an exploded perspective view of the main body of the packaging unit. In this figure, reference numeral 1 denotes the main body of the packaging unit, and the photographic material 2 is housed inside the main body 1 of the packaging unit.

This product has superior physical strength over a wide temperature range from low to high temperatures compared to conventional polystyrene products, and has excellent heat resistance, so it will not deform even if left in a car or exposed to sunlight. I didn't. Furthermore, surprisingly, it has the physical strength to be reused several times as a packaging member for a photosensitive material packaging unit, has no harmful effect on photographic materials, and is returned to soil through microbial decomposition over time after use. It turns out it can be done.

Approximately 100 cm of 135 size Fuji Color Super HG 400 film manufactured by Fuji Photo Film ■ can be wound and stored to create a photosensitive material packaging unit with a lens. This color film is rated C by Fuji Photo Film.
Color development processing was performed using N-16. Furthermore, instead of conventional injection molded products using polystyrene resin, polypropylene resin, or polyethylene resin, sample N according to the present invention was used.
The following injection molded packaging members for photographic light-sensitive materials using polyamide resin α■ were compared with conventional injection molded packaging members made of polystyrene resin, polypropylene resin, and polyethylene resin, and the results were also approximately the same as sample Nα■ of the present invention. obtained surprisingly good results.

Examples 4 to 9 As shown in Example 3, 70.5% by weight of polyamide resin manufactured by Ube Industries (trade name: Ube Nylon), 15% by weight of glass fiber, and 10% by weight of corn starch surface-treated with a silane coupling agent. and 2% by weight of soybean oil, 2% by weight of calcium stearate, and 0% by weight of furnace carbon black.
Using a nylon resin composition containing 5% by weight, it is possible to make, for example, the following packaging member sample for photographic light-sensitive materials according to the present invention.

Example 4 As an example of a disk film cartridge,
There is one shown in FIG. 1 of the specification of Japanese Utility Model Application No. 63-120251. This disc film cartridge is shown in FIG. 2. This figure shows the cartridge in an open state, and a disc film is loaded into the film loading section 4 of this cartridge 3.

Embodiment 5 An example of a spool for photographic film is shown in FIG. 1 of Japanese Utility Model Application No. 63-115147. This photographic film spool 5 is shown in FIG.

Embodiment 6 An example of a film cartridge is shown in FIG. 1 of Japanese Patent Laid-Open No. 63-271440. This film cartridge is shown in FIG. In this figure, reference numeral 6 denotes a film cartridge, which is formed by connecting two cylindrical bodies at exposed parts, and a photographic material 7 is loaded between the bodies.

Example 7 Examples of containers for photographic film cartridges include:
There is one shown in Japanese Patent Application Laid-Open No. 63-204252.

This photographic film cartridge container 8 is shown in FIG.

In particular, there is no light shielding material on the peripheral wall of the cartridge container! (
carbon black, etc.) may not be included.

Example 8 An example of the instant film pack 'JR main body (top plate, bottom plate) is Utility Model 62-6813.
There is one shown in Specification No. 8. The container body of this instant film pack is shown in FIG.

In this figure, reference numeral 9 is a top plate, 10 is a side plate, and 11 is a bottom plate, and these plates 9, 10, and 11 form a box-shaped container body 12. A photographic material 13 is housed inside this via a skirt or the like.

Example 9 An example of a main body for a photographic film pack is shown in FIG. 3 of Japanese Utility Model Application No. 62-53445.

This main body for a photographic film pack is shown in FIG. 7. In this figure, reference numeral 14 is a main body for a photographic film pack, and a photosensitive material unit 15 is housed inside this main body 14 for a photographic film pack.

The polyamide resin used in Examples 4 to 9 of the present invention is essentially microbially degradable, is particularly compatible with carbon black, is used in combination with non-polluting reinforcing materials such as glass fiber, and can be disposed of naturally. However, it is possible to obtain a packaging member for photosensitive materials that is eventually returned to the soil and has reduced environmental pollution.

Example 10 Low density homopolyethylene resin (MI 23g/10 minutes, density 0.924g/cd)
89.8% by weight BCOSTAR (SL, Lawrence 5tarch Co+ starch-based biodegradable synthetic mer master batch)
io wt% oleic acid
o, in amount% phenolic antioxidant 0
．． Using 1% by weight of the above resin compound, a cap for a film batrone (photo shown in FIG. 5) was molded by an injection molding method. Compared to conventional products made of low-density homopolyethylene resin, this material was whiter and more opaque, had a growth rank of 4 for microorganisms, and was degradable by microorganisms, which significantly reduced environmental pollution.

Example 11 High-density homopolyethylene resin (MT 1.1 g/10 min, density 0.954 g/aJ)
20wt ethylene-4 methylpentene-1 copolymer resin (MI 2.1g/10min, density 0.920
g/d) 66.85% by weight BCO5TARPlus (Surface treated starch + OV active photo- and microbially degradable synthetic polymer masterbatch manufactured by SL, Lawrence 5tarch Co)
10 weight carbon black
3% by weight (pH 7.7 - average particle size 21ma) Erucic acid amide 0.05% by weight Antioxidants (phenolic 0.05% by weight, phosphorus 0.05% by weight)
aix) 0.1% by weight A light-shielding film with a thickness of 10 nm was molded using the above resin composition by a inflation film molding method.

Compared to the conventional light-shielding film that does not contain EC0STARPlus, this film has a light-shielding ability that is more than 10% higher, no blocking occurs, and the growth level of microorganisms has improved from grade 1 to grade 4, with improved microbial decomposition. It was something that I had. Furthermore, it is photodegradable, and due to the synergistic effect with the light absorption properties of carbon black after use, when it is disposed of under sunlight, its strength decreases significantly and it easily disintegrates.

Example 12 As the outer layer, high-density homopolyethylene resin (Ml 1.1 g/10 min, density 0.954 g/d)
10 wt% ethylene/4 methylpentene-1 copolymer resin (MI 2.1 g/10 min, density 0.920 g/
d) 66.75 wt. EC0STARPlus (Surface treated starch + organometallic doped photo- and microbially degradable synthetic polymer masterbatch with UV activation, manufactured by St. Lawrence 5tarch Co) 1
5% by weight Titanium oxide (anatase type) 8% by weight Barium stearate 0.1% by weight
Erucic acid amide 0.05% by weight antioxidant (phenolic 0.05% by weight, phosphorus 0.05% by weight)
1x) 0.1% by weight Thickness 40n
As the inner layer, ethylene octene-1 copolymer resin (Ml 4g/10 min, density 0.925g/cffl)
10% by weight low density homopolyethylene resin (Ml 2.4g/10min, density 0.923g/a0
10% by weight HCOSTARPlus (surface-treated starch from St. Lawrence 5tarch Co + organometallic-doped photo- and microbially degradable synthetic polymer masterbatch with UV activation)
10% by weight carbon black (pH 7.7, average particle size 21mJI)
3wt% oleic acid adduct 0.0
5 weight antioxidant (phenolic) 0.0
It consists of two layers, 5% by weight and 30mm thick.

A light-shielding two-layer coextruded blown film with a total thickness of 70Q was molded. Since the outer layer of this light-shielding film is white, it is possible to distinguish between the outer layer and the inner layer under safelight during the photographic material packaging process, and it has excellent writability, bag-making suitability (heat sealability, etc.), and excellent physical strength. A packaging member,
The growth rank of microorganisms was also grade 4 in both the inner layer and the outer layer, and the layer had both microbial and photodegradable properties. Due to the synergistic effect of titanium oxide and EC05TARPlus, the outer layer loses its strength in a short period of time when discarded under sunlight, making it easy to disintegrate, greatly reducing environmental pollution.

Example 13 The outer layer was made of the same resin composition as Invention Product 11 and had a thickness of 25 mm, and the inner layer was made of ethylene-butene-1 copolymer resin (?tI 2.0 g/10 min, density 0.905 g/cd
) 89.95% by weight Petroleum resin (“Vetrogin 120” manufactured by Mitsui Petrochemicals) 10% by weight
Antioxidant (phenolic) 0.05% by weight
It consists of 2M of thickness IOQ. Light-shielding 2N with a thickness of 35n
The inner layer of the coextruded blown film was laminated to a total thickness of 70 fm by adhesion through blocking using nip roll pressure and far-infrared lamp heating before the nip roll.
This is a light-shielding laminated film.

This product had excellent physical strength and heat sealability before being disposed of under sunlight.

The outer layer has a microbial growth rank of 4th grade, and both the inner and outer layers are photodegradable when discarded under sunlight after use, making it easy to dispose of as the strength can be reduced in a short period of time. Ta.

Example 14 Ethylene-4 methylpentene-1 copolymer resin (formerly 2.
1g/10min・Density 0.920g/cffl) 4
0% by weight NUC-NULL-P (Photodegradable copolymer resin of ethylene and carbon monoxide manufactured by UCC, USA) 55.95% by weight Carbon black (p) 17. 'l average particle diameter 21 mμ)
3wt% oleic acid straw 0.0
5% by weight synthetic liquor 1% by weight A light-shielding film having a thickness of 10 nm was molded using the above resin composition by an inflation film molding method. This product had excellent film forming properties, physical strength, heat sealability, and lubricity. However, after use, it is photodegradable and rapidly loses its elongation and strength when exposed to ultraviolet light (sunlight is also acceptable), making it easy to dispose of.

Example 15 Propylene-ethylene random copolymer resin (Ml 4
0g/10min・Ethylene content: 13% by weight) 62.2% by weight Ethylene-4 methylpentene-1 copolymer resin (MI
10g/10min・Density 0.925g/c4)
20% by weight carbon black (p)17. 'l average particle diameter 21u) 0
．． 3% by weight calcium carbonate 15
Weight% Nucleating agent (1,3,2,4 dibenzylidene sorbitol) 0.2% Antioxidant (Irganox 1010 manufactured by Ciba Geigy) 0.1
Weight% Sorbitan monostearate) 0.5 weight 11
% Barium stearate 0.4% by weight
Oleic acid amide 0.3% by weight Benzophenone 1% by weight By injection molding method using the above polyolefin resin composition,
The lens-equipped packaging unit shown in FIG. 1 was molded. This product was superior in physical strength, injection moldability, heat resistance, etc. to conventional polystyrene products. In addition, when discarded under sunlight after use, the strength decreased and it was easy to crush, and it was photodegradable and had excellent disposal properties.

Example 16 Using the same polyolefin resin composition as Invention Product 15, a spool for photographic film as shown in FIG. 3 was molded by injection molding. This spool had excellent physical strength, injection moldability, and heat resistance, a small coefficient of static friction, and a small photographic film winding torque. In addition, after use, when discarded under sunlight, the strength decreases and it has photodegradability, making it easier to crush, so it has excellent disposal properties.

Example 17 Using the same polyolefin resin composition as Invention Product 15, a main body of a plastic photographic film cartridge shown in FIG. 1O of JP-A-1-231045 was molded by injection molding.

This plastic photographic film cartridge 16 is shown in FIG. 8, where 17 is a main body and 18 is a cap. Like Inventive Product 15, this product also has excellent properties during use, and when discarded under sunlight after use, it has photodegradability, is easy to crush, and has excellent disposal properties. Ta.

Invention product 18 Propylene-ethylene random copolymer resin (Ml 4
．． Og/10 min・Ethylene content 3% by weight) 93% by weight Petroleum resin (“Vetrogin 120” manufactured by Mitsui Petrochemicals) 5% by weight
Nucleating agent (1,3,2,4 dibenzylidene sorbitol)
0.2% by weight Antioxidant (Irganox 1010 manufactured by Ciba Geigy) 0.1
Weight% Sorbitan monostearate 0.5% by weight Oleic acid amide 0.2% by weight Benzophenone 1% by weight
The photographic film cartridge container body shown in the figure was molded. This product is transparent and allows you to see the sealed photographic film cartridge inside the container, has excellent physical strength and injection moldability, and is easy to dispose of as it easily disintegrates when discarded in sunlight after use. Ta.

Example 19 Impact-resistant polystyrene resin containing 168% by weight of butadiene rubber 87.5% by weight petroleum resin (vetrozin 120″ manufactured by Mitsui Petrochemicals) 10% by weight carbon black (pH 7.7, average particle size 21 mμ) 0
．． 5% by weight Linear polydimethylsiloxane (viscosity 20,000 CS"KP-96" manufactured by Shin-Etsu Chemical) 1% by weight Stearic acid 0.5% by weight
Valmitic acid monoglyceride 0.5% by weight Using the above-mentioned impact-resistant polystyrene resin material, the main body of the lens-equipped packaging unit shown in FIG. 1 was molded by an injection molding method. This product had excellent injection moldability, dimensional accuracy, and physical strength, and when discarded under sunlight after use, the strength decreased and it became easily disintegrated, making it easy to dispose of.

Example 20 A spool for photographic film as shown in FIG. 3 was molded by injection molding using the same impact polystyrene resin composition as Invention Product 19. This product has physical strength, injection moldability,
The spool had excellent dimensional accuracy, a low coefficient of static friction, and a low photographic film winding torque. In addition, if you dispose of it under sunlight after use, the strength will decrease and it will disintegrate easily.
It was easy to dispose of.

Example 21 A plastic photographic film cartridge as shown in FIG. 8 was molded by injection molding using the same high-impact polystyrene resin assembly as in Invention Product 19.

This product had excellent injection moldability, physical strength, dimensional accuracy, and light shielding properties, and was excellent in disposability, as if it was discarded in sunlight after use, its strength would decrease and it would easily disintegrate.

The above is a typical example of a packaging member for a photographic light-sensitive material molded using a bottom polymer having typical microbial degradability and/or photodegradability (photodegradability). Although examples have been described, the present invention is not limited to these, and the invention is described in claims (1) to (6), embodiments, and the specification. packaging materials for photographic light-sensitive materials not mentioned in the specifications, molded using various microbially degradable and/or photodegradable (photodegradable) base polymers that do not have a harmful effect on the photographic light-sensitive materials. Packaging members for photographic light-sensitive materials, or packaging members for photographic light-sensitive materials molded using a synthetic polymer main chain obtained by adding one or more types of various microbial decomposition accelerators and/or various photodegradation accelerators to various synthetic polymers. It includes all.

〔Effect of the invention〕

By using the packaging member for photographic light-sensitive materials of the present invention,
In particular, even if the packaging material used in a lens-equipped photographic material packaging unit is disposed of naturally after the photographic material is used, it will eventually be returned to the soil because it has microbial degradability and/or photodegradability (photodegradability). It is possible to significantly reduce environmental pollution and respond to the further spread of photographic materials.

[Embodiment]

The following embodiments are possible within the technical scope of the present invention.

(1) Microbially degradable synthetic polymer has (a) amide bond (-NHCO-), urethane bond (-NH-GO-0-), aliphatic ester bond (alipha sulfonyl bond (SO□-)) in the polymer main chain. (0) Synthetic polymer biosynthesized using microorganisms and recovered, for example, from lines 12 to 11 on page 11 of the specification. 12 pages 16
The various microbially degradable synthetic polymers listed in row 1, preferably propionic acid and glucose, can be combined with hydrogen bacterial Alealig.
Poly-3-hydroxybutyre (3HB) and poly-3 produced when metabolized by Enes Eutrophus
- Copolymer of hydroxyvalerate (311V) (trade name "Biopol" from ICI, UK, etc., 3) IB-C
o-3HV) and 4-hydroxybutyric acid and fructose as carbon sources.
Poly-3-hydroxybutyrate (3HB
) and 4-hydroxybutyrate (4HB) in a bottom shape using an aliphatic polyester such as a copolymer (3HB-CO-4HB).

(2) It has at least one component of polyamide, polyurethane, a polymer having an aliphatic ester bond in its main chain, polyimide, or polysulfone, and further contains at least 50% by weight of the sum of these components or a synthetic polymer composition. The packaging member for a photographic light-sensitive material according to claim (1) or the embodiment (1), which contains a light-shielding substance.

(3) A film with a lens, characterized in that the microbially degradable and/or photodegradable synthetic polymer composition according to the embodiment items (1) to (6) contains a reinforcing material. unit body.

(4) A photographic film package comprising the packaging member for photographic light-sensitive materials according to embodiments (1) to (6).

(5) The microbially degradable synthetic polymer composition according to claims (1) and (4) and the photodegradable synthetic polymer composition according to claim (6) have light-absorbing and light-shielding properties. A packaging member for a photographic material and a package using the same, characterized in that the packaging member contains a substance and one or more of a lubricant, a surfactant, and a coupling agent as a dispersion improver.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of the main body of the lens-equipped packaging unit obtained in Example 3, Example 15, and Example 19. FIG. 2 is a schematic cross-sectional view of the disc film cartridge obtained in Example 4. FIG. 3 is a perspective view of the photographic film spool obtained in Example 5, Example 16, and Example 2o, and FIG. 4 is a perspective view of the film cartridge obtained in Example 6. FIG. 5 is a cross-sectional view of the photographic film cartridge containers obtained in Example 7, Example 1o, and Example 18. FIG. 6 is a schematic cross-sectional view of the instant film bag container obtained on the day of the example. FIG. 7 is a perspective view of the main body for a photographic film back obtained in Example 9. FIG. 8 is an exploded perspective view of the photographic film cartridges obtained in Examples 17 and 21. 1...Packaging unit body 2.7.13...Photosensitive material 3...Disc film cartridge 5...Spool for photographic film 6...Film cartridge 8...Container for photographic film cartridge 12 ... Instant film bag container main body 14 ... Main body for photographic film back 16 ... Photographic film cartridge

Claims (6)

[Claims] (1) When molded with resin, it has microbial degradability and can be heated to 60°C.
A packaging member for photographic light-sensitive materials, characterized in that it is molded from a synthetic polymer composition that does not generate substances that have a harmful effect on photographic light-sensitive materials. (2) When molded with resin, it has microbial degradability and can be heated to 40°C.
A packaging member for photographic light-sensitive materials, characterized in that it is molded from a synthetic polymer composition that does not generate substances that have harmful effects on photographic light-sensitive materials when the humidity is adjusted to 60% RH for 5 days. (3) Photodegradable and 40°C 60°C when resin molding
%RH A packaging member for a photographic light-sensitive material, characterized in that it is molded from a synthetic polymer composition that does not generate substances that have a harmful effect on the photographic light-sensitive material when humidity is adjusted for 5 days. (4) A lens characterized by containing a reinforcing material in the microorganism and/or photodegradable synthetic polymer composition according to claim (1), (2), or (3). Film unit body with (5) The microorganism and/or photodegradable synthetic polymer composition according to claim (1), (2), or (3) contains a light-shielding substance. Film unit body with lens (6) A photographic film packaging body comprising the packaging member for photographic light-sensitive materials according to claim (1), (2), or (3).