JPS6034456B2 - 感光材料用包装材料 - Google Patents

感光材料用包装材料

Info

Publication number
JPS6034456B2
JPS6034456B2 JP55018088A JP1808880A JPS6034456B2 JP S6034456 B2 JPS6034456 B2 JP S6034456B2 JP 55018088 A JP55018088 A JP 55018088A JP 1808880 A JP1808880 A JP 1808880A JP S6034456 B2 JPS6034456 B2 JP S6034456B2
Authority
JP
Japan
Prior art keywords
materials
packaging
film
packaging material
oriented film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP55018088A
Other languages
English (en)
Other versions
JPS56115257A (en
Inventor
睦男 赤尾
謙三 柏木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP55018088A priority Critical patent/JPS6034456B2/ja
Priority to DE19813105337 priority patent/DE3105337A1/de
Priority to US06/235,229 priority patent/US4359499A/en
Publication of JPS56115257A publication Critical patent/JPS56115257A/ja
Publication of JPS6034456B2 publication Critical patent/JPS6034456B2/ja
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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    • B32B7/04—Interconnection of layers
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    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
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    • B32B2305/188—Woven fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/24—Aluminium
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/043—HDPE, i.e. high density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2327/00—Polyvinylhalogenides
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
    • Y10T428/24901—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material including coloring matter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/24934—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including paper layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Packages (AREA)

Description

【発明の詳細な説明】 本発明は写真感光材料用の包装材料に関し、さらに詳細
には、十分な物理強度を有する一方、袋として用いた場
合開封が容易であり、かつ安価に製造できる写真感光材
料用の包装材料に関する。
一般に写真フィルムや印画紙等の写真感光材料は、光に
晒されるとその品質価値を矢なうため、包装に際しては
光を完全に遮るような包装材料が使用される。その包装
材料を包装袋に使用する場合には被包装物の大きさ、重
量に応じて充分な物理強度、即ち引張り強度、引裂き強
度等を持たせる必要がある。またその包装材料で感光材
料を袋詰め包装する場合は、ヒートシールにより閉口部
を完全密封し、遮光と防湿を行う関係上、、包装材料に
ヒートシール適性およびヒートシール強度を持たせるこ
とも必要である。さらに、ヒートシールをした袋では袋
が容易に開封でき、かつ切り口が良好である（乱れない
）ことが要求される。従来、上述した如き写真感光材料
用の包装袋としては、その用途により多少形態は異なる
が、袋の四方を完全にシールした状態で使用するものが
多く、そしてこのような袋を作るための包装材料として
は第１図に示す如く、カーボンブラックや顔料を練り込
んで遮光性を持たせた低密度ポリエチレンフィルム１に
紙、アルミ箔、セロフアン等の可操性層（フレキシブル
層）２を接着層３を介してラミネートして成るものが一
般に知られている。しかしながら、前述した無延伸の低
密度ポリエチレンフィルムーから成る包装材料は物理強
度及び防湿性の点で必ずしも満足するものではなく、こ
のような特性を持たせるためにはフィルム１自体の厚み
を増す必要があった。
また、遮光性を持たせるために前述した如きカーボンブ
ラックや顔料等の遮光性物質を添加するとフィルムーの
物理強度が低下する傾向があり、従ってこの遮光性を持
たせるためには前記同様にフィルム１の厚みを増す必要
があった。
しかしながらこのように厚みを増した包装材料を用いて
製袋した場合には、川 開封に際し、手で切り開くこと
が困難となり、たとえ開封ノッチを袋に設けたとしても
引裂き方向が−定しないため切り口が乱れて美観を損う
こと。
｛ｉｉ｝ 厚みが増大する分だけ包装材料の製造コスト
がアップすること。
｛ｉｉｉ｝ 厚手のフィルムに紙等を貼り合わせるとフ
ィルム自体の収縮が大きく影響し、ラミネートフィルム
のカールが大きくなって製袋が困難となる。
等の欠点があった。
本発明は、従来の写真感光材料用の包装材料の有する上
記欠点を除去し、薄手であっても十分な物理強度を有し
、開封性を有し、また安価に製造できる写真感光材料用
の包装材料を提供することを目的とする。
本発明のか）る目的は分子が一軸万向に箔酉己向した熱
可塑性配向フィルムの一面に、該熱可塑性酉己向フィル
ムの酉己向軸と直交する方向の引裂き強度よりも４・さ
し、引裂き強度を有するフレキシブル層を設けて成るこ
とを特徴とする写真感光材料用包装材料によって達成さ
れる。本発明者らは、一枚の配向フィルムは、配向軸方
向の引張り強度及び該軸と直角方向の引裂き強度は大き
いのに対し、配向軸方向の引裂き強度は極めて小さく、
かつ直線状に引き裂けることに着目し、本発明を成すに
至ったが、この詳細は以下の実施例から明らかにされよ
う。第２図は本発明の好ましい実施態様を示す断面図で
ある。
図において１′は４．５％のカーボンブラックを含む４
５〆厚の高密度ポリエチレン配向フィルム（配向角が長
さ方向に４５度）、２′は３５Ａ厚、３０夕／あの紙、
３は水分含有率が０．０３％以下、１５仏厚の低密度ポ
リエチレン接着層である。こ）に紙２′には、配向フィ
ルム１′の配向軸と直交する方向の引裂き強度より小な
る引裂き強度を有するものが用いられる。本包装材料は
以上の如き三層から成るもので、製造する場合には、配
向フィルム１′の上に低密度ポリエチレン接着層３を塗
設し、この上に紙２′をラミネートすることによって達
成される。
これらの製造工程には公知のラミネータが適用される。
以上の如く構成された包装材料を用いて包装袋を作る場
合には、袋の開封方向と前記配向フィルム１′の配向軸
とを一致させる如く包装材料を位置決めし、製袋する。
本包装材料の作用効果は次の実施例から明らかにされよ
う。実施例 本発明包装材料による袋と、従来包装材料による袋とを
同一条件で比較したところ第１表に示す結果が得られた
。
こ）に従来包装材料とは第１図に示す層構成において、
１はカーボンブラックを３％含有する５０仏厚の低密度
ポリエチレン（無配向）フィルム、２は３５仏厚３０タ
ノあの紙（但し引裂き強度に対する限定なし）、３は第
２図に示す本発明包装材料と同一の水分含有率が０．０
３％以下、１５一厚の低密度ポリエチレン接着層である
。第１表第１表から明らかなように、本発明包装材料は
、従来包装材料に較べ、物理強度、遮光性、開封性の全
ての点ですぐれ、また材料の総厚を小さくすることがで
きるので２０％のコストダウンが計れる利点がある。
以上、本発明の内容を一実施例に基き説明して来たが、
本発明は必ずしもこれに限定されるものではなく種々の
変更が可能である。
第３図及び第４図は本発明包装材料の変更例を示すもの
で、第３図は高密度ポリ工チレン配向フィルム１′の一
面に溶融した熱可塑性樹脂層２″を膜厚１３＃以上に塗
設したもの、第４図は防湿性を持たせるため、前記第２
図に示す層構成にさらに接着層３を介してアルミ箔２′
′′を競層したものである。
これら熱可塑性配向フィルム１′の一面に設けられる熱
可塑性樹脂２″あるいは紙２′、アルミ箔２川等から成
るフレキシブル層はいずれも配向フィルム１′の配向軸
と直交する方向のその引裂き強度が配向フィルム１′の
引裂き強度よりも４・さし・ことが必要であることは云
うまでもない。
本発明において配向フィルム１′の一面に設けられる層
は、紙２′や熱可塑性樹脂層２″の外熱可塑性樹脂フィ
ルムラミネート層、セロハン、アルミ箔、布、合成紙等
の従来公知のフレキシブル層を適用することができる。
また、配向フィルム１′は高密度ポリエチレンフィルム
に限らず、配向軸が長手方向に０度〜９０度、さらに好
ましくは０度及び４５度〜９０度配向したポリプロピレ
ンフィルム、ポリスチレン、ナイロン、塩化ビニリデン
、ＰＥＴ等を適用することが可能である。配向フィルム
１′の厚みは用途により異なるが、３０仏〜６０山程度
が望ましい。前記態様においては遮光性を持たせるため
配向フィルム１′に遮光性物質を含有させたが、これを
紙２′や熱可塑性樹脂層２″等のフレキシブル層又は３
の接着層に含有させてもよい。
３の接着層に水又は発泡剤等を添加して接着層中に空洞
を設けたり、又はスジ状にラミネートすることにより本
発明の効果をあげることができる。
なお遮光性物質としては、カーボンブラックの外、アル
ミ、鉄マグネシウム、スズ、亜鉛またはこれらの合金等
の金属粉末や硫酸バリウム、クレー、カオリン、タルク
、炭酸カルシウム、酸化チタン等の顔料、あるいは着色
染料等が用いられ、これらの添加量は包装材料全体で０
．１夕／で〜７夕／で（さらに好ましくは１夕／で〜５
夕／め）であることが好ましい。
以上に詳述したように、本発明に係る写真感光材料用包
装材料は、配向軸方向及び該軸と直角方向の特有の性質
を持った配向フィルムと引裂き強度の面で限定を加えた
フレキシブル層と積層して成るもので、前述したように
、本包装材料によるときは十分な物理強度が得られ、袋
として用いた場合には極めて容易に開封することができ
、かつ美しい切り口が得られ、また材料の製造コストが
安くなるという顕著な効果を奏する。
【図面の簡単な説明】
第１図は従来包装材料の層構成を示す断面図、第２図〜
第４図は本発明包装材料の層横成を示す断面図である。 １：低密度ポリエチレンフィルム、１′：配向フイルム
、２，２′，２″，２′′′：フレキシフル層、３：接
着層。第１図 第２図 第３図 第４図

Claims (1)

    【特許請求の範囲】
  1. １ 分子が一軸に配向し遮光性物質を含む熱可塑性配向
    フイルムの一面に、低密度ポリエチレン接着層を介して
    、該熱可塑性配向フイルムの配向軸と直交する方向の引
    裂き強度よりも小さい引裂き強度を有するフレキシブル
    層を設けて成ることを特徴とする写真感光材料用包装材
    料。
JP55018088A 1980-02-15 1980-02-15 感光材料用包装材料 Expired JPS6034456B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP55018088A JPS6034456B2 (ja) 1980-02-15 1980-02-15 感光材料用包装材料
DE19813105337 DE3105337A1 (de) 1980-02-15 1981-02-13 Verpackungsmaterial fuer fotosensible materialien
US06/235,229 US4359499A (en) 1980-02-15 1981-02-17 Packaging material for photosensitive materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55018088A JPS6034456B2 (ja) 1980-02-15 1980-02-15 感光材料用包装材料

Publications (2)

Publication Number Publication Date
JPS56115257A JPS56115257A (en) 1981-09-10
JPS6034456B2 true JPS6034456B2 (ja) 1985-08-08

Family

ID=11961882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55018088A Expired JPS6034456B2 (ja) 1980-02-15 1980-02-15 感光材料用包装材料

Country Status (3)

Country Link
US (1) US4359499A (ja)
JP (1) JPS6034456B2 (ja)
DE (1) DE3105337A1 (ja)

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Also Published As

Publication number Publication date
DE3105337A1 (de) 1981-12-17
DE3105337C2 (ja) 1989-08-24
JPS56115257A (en) 1981-09-10
US4359499A (en) 1982-11-16

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