JPH0338142Y2 - - Google Patents
Info
- Publication number
- JPH0338142Y2 JPH0338142Y2 JP3320886U JP3320886U JPH0338142Y2 JP H0338142 Y2 JPH0338142 Y2 JP H0338142Y2 JP 3320886 U JP3320886 U JP 3320886U JP 3320886 U JP3320886 U JP 3320886U JP H0338142 Y2 JPH0338142 Y2 JP H0338142Y2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- light
- diazo
- shielding
- heat
- 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
Links
- 239000000463 material Substances 0.000 claims description 49
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims description 28
- 230000035699 permeability Effects 0.000 claims description 13
- 239000006229 carbon black Substances 0.000 claims description 10
- 239000002356 single layer Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 239000000123 paper Substances 0.000 description 79
- 239000010410 layer Substances 0.000 description 26
- 229920001684 low density polyethylene Polymers 0.000 description 17
- 239000004702 low-density polyethylene Substances 0.000 description 17
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 16
- 239000005022 packaging material Substances 0.000 description 14
- 239000002655 kraft paper Substances 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- 238000004040 coloring Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000004806 packaging method and process Methods 0.000 description 9
- 239000003094 microcapsule Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000012790 adhesive layer Substances 0.000 description 7
- 239000011162 core material Substances 0.000 description 7
- 238000011161 development Methods 0.000 description 7
- 150000008049 diazo compounds Chemical class 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 229920000298 Cellophane Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 241000872198 Serjania polyphylla Species 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000001989 diazonium salts Chemical class 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 2
- 239000005001 laminate film Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- YYZRXNIZXRJETP-UHFFFAOYSA-N (4e)-4-diazo-n-phenylcyclohexa-1,5-dien-1-amine Chemical compound C1=CC(=[N+]=[N-])CC=C1NC1=CC=CC=C1 YYZRXNIZXRJETP-UHFFFAOYSA-N 0.000 description 1
- FFRXPGGSKOZZPD-UHFFFAOYSA-N 2-[(5-diazo-2-ethylcyclohexa-1,3-dien-1-yl)amino]ethanol Chemical compound CCC1=C(NCCO)CC(=[N+]=[N-])C=C1 FFRXPGGSKOZZPD-UHFFFAOYSA-N 0.000 description 1
- VVKHPAIJUBQTMQ-UHFFFAOYSA-N 4-(2,5-dibutoxy-4-diazocyclohexa-1,5-dien-1-yl)morpholine Chemical compound C1=C(OCCCC)C(=[N+]=[N-])CC(OCCCC)=C1N1CCOCC1 VVKHPAIJUBQTMQ-UHFFFAOYSA-N 0.000 description 1
- LRUJNDUWNJTRHJ-UHFFFAOYSA-N 4-(4-diazo-2,5-diethoxycyclohexa-1,5-dien-1-yl)morpholine Chemical compound C1=C(OCC)C(=[N+]=[N-])CC(OCC)=C1N1CCOCC1 LRUJNDUWNJTRHJ-UHFFFAOYSA-N 0.000 description 1
- XEGBZEMQPQFNIB-UHFFFAOYSA-N 4-diazo-n,n,2-trimethylcyclohexa-1,5-dien-1-amine Chemical compound CN(C)C1=C(C)CC(=[N+]=[N-])C=C1 XEGBZEMQPQFNIB-UHFFFAOYSA-N 0.000 description 1
- OAWPLNZPUZMDMF-UHFFFAOYSA-N 4-diazo-n,n-diethyl-3-methoxycyclohexa-1,5-dien-1-amine Chemical compound CCN(CC)C1=CC(OC)C(=[N+]=[N-])C=C1 OAWPLNZPUZMDMF-UHFFFAOYSA-N 0.000 description 1
- YZYFPMLAGIGAJJ-UHFFFAOYSA-N 4-diazo-n,n-diethylcyclohexa-1,5-dien-1-amine Chemical compound CCN(CC)C1=CCC(=[N+]=[N-])C=C1 YZYFPMLAGIGAJJ-UHFFFAOYSA-N 0.000 description 1
- LAXPFHMCFLHGKK-UHFFFAOYSA-N 4-diazo-n,n-dimethylcyclohexa-1,5-dien-1-amine Chemical compound CN(C)C1=CCC(=[N+]=[N-])C=C1 LAXPFHMCFLHGKK-UHFFFAOYSA-N 0.000 description 1
- NFHQANYCNWIDTL-UHFFFAOYSA-N 4-diazo-n,n-dipropylcyclohexa-1,5-dien-1-amine Chemical compound CCCN(CCC)C1=CCC(=[N+]=[N-])C=C1 NFHQANYCNWIDTL-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 238000012695 Interfacial polymerization Methods 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910001864 baryta Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-O diazynium Chemical group [NH+]#N IJGRMHOSHXDMSA-UHFFFAOYSA-O 0.000 description 1
- JBSLOWBPDRZSMB-FPLPWBNLSA-N dibutyl (z)-but-2-enedioate Chemical compound CCCCOC(=O)\C=C/C(=O)OCCCC JBSLOWBPDRZSMB-FPLPWBNLSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- WIJIGKKVWSUYKJ-UHFFFAOYSA-N n,n-dibenzyl-4-diazocyclohexa-1,5-dien-1-amine Chemical compound C1=CC(=[N+]=[N-])CC=C1N(CC=1C=CC=CC=1)CC1=CC=CC=C1 WIJIGKKVWSUYKJ-UHFFFAOYSA-N 0.000 description 1
- PIRBHVNFZYLFJQ-UHFFFAOYSA-N n-(2,5-diethoxyphenyl)-4-methoxybenzamide Chemical compound CCOC1=CC=C(OCC)C(NC(=O)C=2C=CC(OC)=CC=2)=C1 PIRBHVNFZYLFJQ-UHFFFAOYSA-N 0.000 description 1
- URKUPUNPRLYTAP-UHFFFAOYSA-N n-(4-diazo-2,5-diethoxycyclohexa-1,5-dien-1-yl)benzamide Chemical compound C1=C(OCC)C(=[N+]=[N-])CC(OCC)=C1NC(=O)C1=CC=CC=C1 URKUPUNPRLYTAP-UHFFFAOYSA-N 0.000 description 1
- XGHSCBCFEWUDQG-UHFFFAOYSA-N n-[(4-diazo-1-methylcyclohexa-2,5-dien-1-yl)methyl]aniline Chemical compound C=1C=CC=CC=1NCC1(C)C=CC(=[N+]=[N-])C=C1 XGHSCBCFEWUDQG-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 150000003021 phthalic acid derivatives Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Packages (AREA)
- Wrappers (AREA)
Description
［産業上の利用分野］
本考案はジアゾ系感熱記録材料の包装体に関す
るものである。特に、定着可能な支持体上に、ジ
アゾ化合物、カツプリング成分及び発色助剤を含
有する記録層を設けた感熱記録材料において、ジ
アゾ化合物、カツプリング成分及び発色助剤のう
ち、少なくとも１種は有機溶剤とともに、マイク
ロカプセル中に含有されている（但し３種を同一
のマイクロカプセル中に含有する場合を除く）ジ
アゾ系感熱記録材料に最適の包装体に関するもの
である。
［従来の技術］
近年、感熱記録方法は、(1)現像が不要である。
(2)支持体が紙の場合は紙質が一般紙に近い。(3)取
り扱いが容易である。(4)発色濃度が高い。(5)記録
装置が簡単であり安価である。(6)記録時の騒音が
ない等の利点があるため、フアクシミリやプリン
ター等の分野で急速に普及している。
この感熱記録方法に使用される感熱記録材料と
しては、主どして発色濃度や発色速度に優れたロ
イコ発色型感熱記録材料が用いられている。
ロイコ発色型感熱記録材料は記録後の取り扱い
や加熱あるいは溶剤類の付着により発色し、記録
画像を汚してしまうという欠点を持つており、ま
たセロテープ中の可塑剤により消色するという欠
点を持つている。このロイコ発色型感熱記録材料
の欠点を改良した、熱記録後不要な部分の発色を
停止させる方法として、特開昭57−123086号公
報、特開昭57−125092号公報等に開示されてい
る。これはジアゾ化合物、カツプリング成分及び
アルカリ発生剤又は発色助剤からなるジアゾ系感
熱記録材料を用いて熱記録後光照射を行なつて未
末反応のジアゾ化合物を分解して発色を停止させ
るものである。
しかしこのジアゾ系感熱記録材料も保存中にプ
レカツプリングが徐々に進み、好ましくない着色
（かぶり）が発生することがある。
この対策のため特開昭57−4414号公報、特開昭
57−142636号公報にはカツプリング成分及び発色
助剤のいずれかを非極性ワツクス状物質にした
り、疎水性高分子物質（特開昭57−192944号公
報）でカプセル化することにより他の成分と隔離
することが知られている。
本考案は上記の各種のジアゾ系感熱記録材料に
も好適に用いることができるが特にジアゾ化合
物、カツプリング成分及び発色助剤のうち、少な
くとも１種を有機溶剤とともにマイクロカプセル
化し、残る成分とともに支持体上に塗布した定着
型ジアゾ系感熱記録材料に最適の包装体である。
本考案の包装体が最も適したジアゾ系感熱記録材
料は従来のマイクロカプセルを熱や圧力によつて
破壊してマイクロカプセルの芯に含有されている
反応性物質とマイクロカプセル外の反応性物質を
接触させて発色反応を生じさせるものでなく、マ
イクロカプセルの芯及び外に存在する反応性物質
を、加熱によりマイクロカプセル壁を透過させて
反応させるものである。この場合、有機溶媒が共
存すると保存時の発色かぶりが飛躍的に減少する
とともに発色速度と発色濃度が飛躍的に増大す
る。この場合マイクロカプセル壁は熱によつて融
解する必要はないむしろ壁の融点の高いほうが生
保存性がよい。
本考案の包装体に最適であるジアゾ系感熱記録
材料を詳細に説明する。芯物質となるジアゾ化合
物を有機溶媒に溶解もしくは分散した後、界面重
合や外部重合及び内部重合等の重合法により生じ
る壁物質で反応性物質と有機溶媒とを含有する芯
物質をマイクロカプセル化したものが好ましい。
壁物質としてはポリウレタン、ポリウレア、ポリ
アミド、ポリエステルが好ましい。芯物質に用い
られる有機溶媒は不溶性の高沸点の溶媒である。
沸点は180℃以上が好ましく、具体例としてはリ
ン酸エステル、フタル酸エステル、その他のカル
ボン酸エステル、脂肪酸アミド等であり、具体的
化合物としてはフタル酸ジブチル、フタル酸ジエ
チル、マレイン酸ジブチル、リン酸トリクレジル
等のエステル系の溶媒が特に好ましい。
ジアゾ化合物としては、一般式ArN2 +x-で示
されるジアゾニウム塩でありカツプリング成分と
カツプリング反応を起して発色することができる
し、また光によつて分解することができる化合物
である。（式中、Arは置換あるいは無置換の芳香
族部分を表わし、N2 +はジアゾニウム基を表わ
し、x-は酸アニオンを表わす。）
塩を形成するジアゾニウム化合物の具体例とし
ては、４−ジアゾ−１−ジメチルアミノベンゼ
ン、４−ジアゾ−１−ジエチルアミノベンゼン、
４−ジアゾ−１−ジプロピルアミノベンゼン、４
−ジアゾ−１−メチルベンジルアミノベンゼン、
４−ジアゾ−１−ジベンジルアミノベンゼン、４
−ジアゾ−１−エチルヒドロキシエチルアミノベ
ンゼン、４−ジアゾ−１−ジエチルアミノ−３−
メトキシベンゼン、４−ジアゾ−１−ジメチルア
ミノ−２−メチルベンゼン、４−ジアゾ−１−ベ
ンゾイルアミノ−２，５−ジエトキシベンゼン、
４−ジアゾ−１−モルホリノベンゼン、４−ジア
ゾ−１−モルホリノ−２，５−ジエトキシベンゼ
ン、４−ジアゾ−１−モルホリノ−２，５−ジブ
トキシベンゼン、４−ジアゾ−１−アニリノベン
ゼン、４−ジアゾ−1.−トルイルメルカプト−
２，５−ジエトキシベンゼン、４−ジアゾ−１，
４−メトキシベンゾイルアミノ−２，５−ジエト
キシベンゼン等が挙げられる。
酸アニオンの具体例としては、CoF2o+1COO-
（ｎは３〜９を表わす）、CmF2n+1SO3 -（ｍは２
〜８を表わす）、（ClF2l+1SO2）2CH-（ｌは１〜18
を表わす）、
等である。
ジアゾ系感熱記録材料についての公知文献とし
ては日本化学誌1985，（11）p2111〜2115に記載
されているNTT社佐藤弘次氏の“ジアゾ系感熱
記録媒体にお：る熱増感剤と熱発色特性”があ
る。
従来、上述したジアゾ系感熱記録材料の包装体
のように、遮光性等を必要とする包装材料として
は、その代表的なものとして写真感光材料（ジア
ゾ写真感光材料等も含む）用の包装材料があつ
た。そして、この写真感光材料用包装材料は種々
のタイプのものが広く実用化されており、その使
途に従つて様々の性能が要求されている。
光に曝するとその品質価値を失う写真感光材料
用包装材料としては光を完全に遮断する包装材料
が使用される。この場合、要求される特性として
はガスバリヤ性、遮光性、防湿性、物理強度（破
断強度、引裂強度、衝撃穴あき強度、ゲルボテス
ト強度、摩擦強度等）、ヒートシール適正（ヒー
トシール強度、ホツトタツク性、夾雑物シール性
等）帯電防止性、平面性、すべり特性等が挙げら
れる。これらの諸性質を単一のフイルム材料で兼
ね備えることは困難であり、従来、一般には第５
図に示すように、カーボンブラツクや顔料等を練
り込んだ高圧法低密度ポリエチレン（以後LDPE
と表示）であるLDPE遮光フイルム層５の単一フ
イルム層からなるものや、第６図に示すように、
セロハン等のフレキシブルシート層６とLDPE遮
光フイルム層５とを積層した複合ラミネートフイ
ルムや、第７に示すように、遮光性を付与した遮
光性フレキシブルシート層７とLDPEフイルム層
８とを積層した複合ラミネートフイルムがあつ
た。また、アルミニウム箔等の金属箔遮光層を用
いたものとして第８図に示すように、LDPE遮光
フイルム層５に接着層４を介して金属箔遮光層９
を積層し、さらに接着層４を介してフレキシブル
シート層６を積層したものがあつた。
本考案者は、感光物質用包装材料を改良すべく
鋭意研究を行ない、２層の一軸延伸フイルムを組
み合わせることによつて物理強度を向上させたも
の（特開昭57−6754号公報）を既に開示してい
る。
また、直鎖状低密度ポリエチレン（以後Ｌ−
LDPEと表示）樹脂を利用した包装材料について
も、ポリエチレン系ポリマーと１重量％以上の遮
光性物質からなり、全エチレン系ポリマーの50重
量％以上がＬ−LDPEである遮光性フイルムを少
なくとも一層有するものを既に開示した（特開昭
58−132555号公報）。
［考案が解決しようとする問題点］
しかしながら、以上のような従来の感熱記録材
料、ジアゾ感光材料、写真感光材料等に用いられ
てきた包装材料を、ジアゾ系感熱記録材料の包装
材料として用いた場合、これらの包装材料は厚さ
５０／１００umのポリエチレンフイルム層等のプラス
チツクからなる層を含むため、太陽光下に置かれ
たり輸送中又は保管中に高温にさらされると、熱
と湿気によりプレカツプリングが徐々に進み着色
が発生するという問題点があつた。
本考案は以上の問題点を解消し、熱遮断性に優
れかつ高温時における包装内の湿気の外部への放
出性のよいジアゾ系感熱記録材料の包装体を提供
することを目的とする。
［問題点を解決するための手段］
本考案は上記目的を達成するために、別体であ
る２枚の紙を重ね合せて包装体を構成したもので
ある。
すなわち、内面に密度が0.7〜1.0ｇ／cm3、厚さ
が30〜200μm、透湿度が50ｇ／m2・24時間以上で
ある単層の遮光紙を、外面に白色、黄色、銀色又
は淡着色で密度が0.7〜1.0ｇ／cm3、厚さが20〜
150μm、透湿度が50ｇ／m2・24時間以上である単
層の光反射紙を重ね合わせ、かつ遮光紙と光反射
紙を重ね合わせた紙の密度が0.7〜1.0ｇ／m3、厚
さが50〜250μm、透湿度が50ｇ／m2・24時間以上
である包装紙でジアゾ系感熱記録材料を包んだこ
とを特徴として構成されている。
包装紙は遮光紙と光反射紙が重ね合わせられて
構成されている。この重ね合わせは、互いに別体
である遮光紙と光反射紙を接着することなく二重
の構造にしたもである。
前記遮光紙としては染料、顔料、金属粉末等に
より黒色、赤色、青色等光吸収色に着色した紙の
ことを意味するが、本考案に最も好ましいのは１
〜15重量％のカーボンブラツクで着色した黒色の
遮光紙である。カーボンブラツクが好ましいのは
安価で不純物が少なく遮光性に優れているためで
ある。遮光紙は遮光性と透湿性と物理強度を確保
するため密度は0.7〜1.0ｇ／cm3好ましくは0.8〜
0.95ｇ／cm3に、厚さは30〜200μm、好ましくは50
〜120μm、透湿度は50ｇ／m2・24h以上、好まし
くは、100ｇ／m2・24h以上の特性が要求がされ
る。
前記光反射紙としては白色、黄色、淡着色、銀
色の紙で印刷性、透湿性、物理強度を確保するた
め密度は0.7〜1.0ｇ／cm3、好ましくは0.8〜0.95
ｇ／cm3、厚さは20〜150μm、好ましくは30〜
90μm、透湿度は50ｇ／m2・24h以上、好ましくは
100ｇ／m2・24h以上の特性が要求がされる。
光反射紙としては未晒クラフト紙、半晒クラフ
ト紙、晒クラフト紙、両更クラフト紙、両更晒ク
ラフト紙、純白包装紙、純白ロール紙、Ｓロール
紙、Ｇロール紙、片艶晒クラフト紙、筋入クラフ
ト紙、デュオストレス紙、バライタ原紙、クルパ
ツク紙、片艶クラフト紙、薄口模造紙、上質紙、
障子紙、アート原紙、遮光紙としては上記光反射
紙に着色物質を添加した色紙、色上質紙、写真用
遮光原紙等がある。特に、純白ロール紙と両更晒
クラフト紙が光反射紙としては好ましく、遮光紙
としては写真用遮光原紙の用にカーボンブラツク
で黒色に着色した紙が好ましい。
また、遮光紙と光反射紙を重ね合わせた包装紙
としては、遮光性、物理強度及び透湿性を確保す
るために、密度が0.7〜1.0ｇ／cm3、厚さが50〜
250μm、透湿度が50ｇ／m224時間以上であること
が必要である。
［作用］
本考案の感熱記録材料の包装体では、遮光紙及
び光反射紙の２枚の紙が外部の温度及び光を遮断
し、またジアゾ系感熱記録材料が50℃以上に加熱
され、包装内の湿度が高くなつたとき包装内の湿
気を透過させて外部に放出する。従つて収納した
ジアゾ系感熱記録材料を常に品質が安定した状態
に保つている。
［実施例］
本考案品１は第１図の実施態様に相当する。こ
の図において符号１は内面に設けられる遮光紙、
符号２は外面に設けられる光反射紙であり、これ
らの間に〓間３を有することができるように重ね
合わせて構成されている。そして、上記遮光紙１
には、広葉樹パルプ（Ｌ材）67重量％と針葉樹パ
ルプ（Ｎ材）27重量％とカーボンブラツク６重量
％よりなり、密度0.92ｇ／cm3、厚さ75μmの黒色
の紙を用いた。また、光反射紙２には、密度0.89
ｇ／cm3、厚さ67μmの白色の晒クラフト紙を用い
た。
本考案品２も第１図の実施態様に相当する。遮
光紙１には、本考案品１と同一組成で密度0.93
ｇ／cm3、厚さ98μmの黒色の紙を用い、光反射紙
２としては、密度0.90ｇ／cm3、厚さ55μmの白色
の純白ロール紙を用いた。
比較品１は第１図の実施態様に類似する。これ
は遮光紙１の代わりに厚さ50μmのカーボンブラ
ツクを３重量％含むLDPE遮光フイルム層５を設
け、光反射紙２には密度0.89ｇ／cm3、厚さ67μm
の本考案品１と同一の白色晒クラフト紙を用い
た。
比較品２は第４図の実施態様に相当する。この
態様は遮光紙１と光反射紙２を接着層４で積層し
て構成されたものである。そして、遮光紙１及び
光反射紙２は本考案品１と同様の紙が用いられ、
接着層４にはLDPE樹脂のエクストルージヨンラ
ミネート接着層を用いた。
従来品１は第５図の実施態様に相当し、LDPE
遮光フイルム層５として厚さ70μmでカーボンブ
ラツクを３重量％含むものを用いた。
従来品１は第６図の実施態様に相当し、フレキ
シブルシート層６として密度0.87ｇ／cm3、厚さ
80μmの末晒クラフト紙を用い、LDPE遮光フイ
ルム層５としてカーボンブラツクを３重量％含む
エクストルージヨンラミネートフイルム層を用い
た。
以上のような包装紙で包装した包装形態を第２
図及び第３図に基づいて説明する。
第２図は、袋形式の包装形態を示す斜視図で、
遮光紙１と光反射紙２が両側端で接着されて袋状
に形成されている。
第３図は、ジアゾ系感熱記録材料を包装した状
態を示す斜視図である。図において、符号１０は
ジアゾ系感熱記録材料で、この記録材料10は、巾
210mm、内径３インチの紙巻芯１１に巻き付けら
れている。
次に、前述した本考案品１〜２、比較品１〜
２、従来品１〜２の包装紙で、帯状のジアゾ系感
熱記録材料を第３図のように包装し、55℃の恒温
槽に42時間入れた後の着色（かぶり）をマクベス
濃度として求めた。
結果を下記の表に示す。
[Industrial Application Field] The present invention relates to a package for a diazo thermosensitive recording material. In particular, in a heat-sensitive recording material in which a recording layer containing a diazo compound, a coupling component, and a coloring aid is provided on a fixable support, at least one of the diazo compound, coupling component, and coloring aid is an organic solvent. The present invention also relates to a package optimal for diazo-based heat-sensitive recording materials contained in microcapsules (except when three types are contained in the same microcapsule). [Prior Art] In recent years, thermal recording methods (1) do not require development;
(2) If the support is paper, the paper quality is similar to ordinary paper. (3) Easy to handle. (4) High color density. (5) The recording device is simple and inexpensive. (6) Because it has advantages such as no noise during recording, it is rapidly becoming popular in fields such as facsimiles and printers. As the heat-sensitive recording material used in this heat-sensitive recording method, a leuco color-forming heat-sensitive recording material, which is excellent in color density and color development speed, is mainly used. Leuco color-forming heat-sensitive recording materials have the disadvantage that they develop color when handled or heated after recording, or when solvents are attached to them, staining the recorded image, and they also have the disadvantage of being discolored by the plasticizer in the cellophane tape. There is. A method for improving the drawbacks of this leuco coloring type heat-sensitive recording material and stopping color development in unnecessary areas after thermal recording is disclosed in JP-A-57-123086, JP-A-57-125092, etc. . This uses a diazo-based heat-sensitive recording material consisting of a diazo compound, a coupling component, and an alkali generator or a color-forming aid, and then irradiates it with light to decompose the unreacted diazo compound and stop color development. be. However, this diazo-based heat-sensitive recording material also undergoes gradual pre-coupling during storage, and undesirable coloring (fogging) may occur. To counter this problem, Japanese Patent Application Laid-Open No. 57-4414,
No. 57-142636 discloses that either the coupling component or the coloring aid is made into a non-polar wax-like substance or encapsulated with a hydrophobic polymeric substance (Japanese Patent Laid-Open No. 1982-192944). known to isolate. The present invention can be suitably used for the above-mentioned various diazo-based heat-sensitive recording materials, but in particular, at least one of the diazo compound, coupling component, and color development aid is microencapsulated together with an organic solvent, and the remaining components are added to the support. This package is ideal for fixing type diazo heat-sensitive recording materials coated on top.
The diazo-based heat-sensitive recording material for which the package of the present invention is most suitable can destroy conventional microcapsules by heat or pressure to separate the reactive substances contained in the core of the microcapsules and the reactive substances outside the microcapsules. Rather than causing a coloring reaction upon contact, the reactive substance present in the core and outside of the microcapsule is caused to react by passing through the microcapsule wall by heating. In this case, when an organic solvent coexists, color fog during storage is dramatically reduced, and color development speed and color density are dramatically increased. In this case, the microcapsule wall does not need to be melted by heat; rather, the higher the melting point of the wall, the better the shelf life. The diazo thermosensitive recording material that is most suitable for the package of the present invention will be explained in detail. After dissolving or dispersing the diazo compound as the core material in an organic solvent, the core material containing the reactive substance and the organic solvent is microencapsulated with a wall material produced by polymerization methods such as interfacial polymerization, external polymerization, and internal polymerization. Preferably.
Preferred wall materials are polyurethane, polyurea, polyamide and polyester. The organic solvent used for the core material is an insoluble high boiling point solvent.
The boiling point is preferably 180°C or higher, and specific examples include phosphoric acid esters, phthalic acid esters, other carboxylic acid esters, fatty acid amides, etc. Specific compounds include dibutyl phthalate, diethyl phthalate, dibutyl maleate, phosphorus, etc. Ester solvents such as tricresyl acid are particularly preferred. The diazo compound is a diazonium salt represented by the general formula ArN 2 + x - , which can develop a color by causing a coupling reaction with a coupling component, and can be decomposed by light. (In the formula, Ar represents a substituted or unsubstituted aromatic moiety, N 2 + represents a diazonium group, and x - represents an acid anion.) Specific examples of diazonium compounds that form salts include 4-diazo -1-dimethylaminobenzene, 4-diazo-1-diethylaminobenzene,
4-Diazo-1-dipropylaminobenzene, 4
-diazo-1-methylbenzylaminobenzene,
4-Diazo-1-dibenzylaminobenzene, 4
-Diazo-1-ethylhydroxyethylaminobenzene, 4-diazo-1-diethylamino-3-
Methoxybenzene, 4-diazo-1-dimethylamino-2-methylbenzene, 4-diazo-1-benzoylamino-2,5-diethoxybenzene,
4-Diazo-1-morpholino-2,5-diethoxybenzene, 4-diazo-1-morpholino-2,5-dibutoxybenzene, 4-diazo-1-anilinobenzene , 4-diazo-1.-tolylmercapto-
2,5-diethoxybenzene, 4-diazo-1,
Examples include 4-methoxybenzoylamino-2,5-diethoxybenzene. A specific example of an acid anion is C o F 2o+1 COO -
(n represents 3 to 9), CmF 2n+1 SO 3 - (m is 2
~8), (ClF 2l+1 SO 2 ) 2 CH - (l represents 1 ~ 18
), etc. A known document regarding diazo-based thermosensitive recording materials is "Thermal sensitizers and thermal color development in diazo-based thermosensitive recording media" by Hiroji Sato of NTT Corporation, which is described in Nippon Kagaku Shishi 1985, (11) p. 2111-2115. There are "characteristics". Conventionally, packaging materials for photographic light-sensitive materials (including diazo photographic light-sensitive materials, etc.) are typical examples of packaging materials that require light-shielding properties, such as the above-mentioned packaging for diazo heat-sensitive recording materials. It was hot. Various types of packaging materials for photographic materials have been widely put into practical use, and various performances are required depending on the intended use. Packaging materials that completely block light are used as packaging materials for photographic materials that lose their quality value when exposed to light. In this case, the required properties are gas barrier properties, light blocking properties, moisture proofing properties, physical strength (breaking strength, tear strength, impact puncture strength, gelbo test strength, friction strength, etc.), heat sealability (heat seal strength, hot tack properties, etc.) , contaminant sealing properties, etc.), antistatic properties, flatness, sliding properties, etc. It is difficult to combine these properties in a single film material, and conventionally, the fifth
As shown in the figure, high-pressure low-density polyethylene (hereinafter referred to as LDPE) with carbon black, pigments, etc.
LDPE light-shielding film layer 5 (shown as ), as shown in Figure 6,
A composite laminate film in which a flexible sheet layer 6 such as cellophane and an LDPE light-shielding film layer 5 are laminated, and a composite in which a light-shielding flexible sheet layer 7 with light-shielding properties and an LDPE film layer 8 are laminated as shown in No. 7. The laminated film is hot. In addition, as shown in FIG. 8, a metal foil light shielding layer 9 such as an aluminum foil is attached to an LDPE light shielding film layer 5 via an adhesive layer 4.
There was one in which a flexible sheet layer 6 was further laminated via an adhesive layer 4. The inventor of the present invention has conducted extensive research to improve packaging materials for photosensitive materials, and has already developed a material with improved physical strength by combining two layers of uniaxially stretched film (Japanese Patent Laid-Open No. 57-6754). Disclosed. In addition, linear low-density polyethylene (hereinafter L-
Regarding packaging materials using resin (denoted as LDPE), it must also have at least one layer of a light-shielding film consisting of a polyethylene polymer and 1% or more of a light-shielding substance, with 50% or more of the total ethylene-based polymer being L-LDPE. have already disclosed something (JP-A-Sho
58-132555). [Problems to be solved by the invention] However, the packaging materials that have been used for conventional heat-sensitive recording materials, diazo-based photosensitive materials, photographic photosensitive materials, etc., as described above, are used as packaging materials for diazo-based heat-sensitive recording materials. Since these packaging materials contain a layer of plastic, such as a 50/100 um thick polyethylene film layer, they may be exposed to heat and moisture when placed in sunlight or exposed to high temperatures during transportation or storage. There was a problem in that the coupling gradually progressed and coloring occurred. The object of the present invention is to solve the above-mentioned problems and provide a package for a diazo-based heat-sensitive recording material that has excellent heat insulation properties and good release of moisture inside the package to the outside at high temperatures. [Means for Solving the Problems] In order to achieve the above object, the present invention constitutes a package by overlapping two separate sheets of paper. In other words, a single layer of light-shielding paper with a density of 0.7 to 1.0 g/cm 3 , a thickness of 30 to 200 μm, and a moisture permeability of 50 g/m 2 for 24 hours or more is used on the inner surface, and white, yellow, silver, or light colored paper is used on the outer surface. When colored, the density is 0.7~1.0g/cm 3 and the thickness is 20~
A single layer of light-reflecting paper with a thickness of 150 μm and a moisture permeability of 50 g/m 2 for 24 hours or more is stacked, and the density of the paper is 0.7 to 1.0 g/m 3 and the thickness is a stack of light-shielding paper and light-reflecting paper. The diazo heat-sensitive recording material is wrapped in a wrapping paper having a diameter of 50 to 250 μm and a moisture permeability of 50 g/m 2 for 24 hours or more. The wrapping paper is made up of a layer of light-shielding paper and light-reflecting paper. This superposition creates a double structure in which the light-shielding paper and the light-reflecting paper, which are separate from each other, are not glued together. The above-mentioned light-shielding paper refers to paper colored with light-absorbing colors such as black, red, and blue using dyes, pigments, metal powders, etc., and the most preferable paper for the present invention is 1.
It is a black light-shielding paper colored with ~15% by weight carbon black. Carbon black is preferred because it is inexpensive, contains few impurities, and has excellent light-shielding properties. The density of the light-shielding paper is 0.7 to 1.0 g/ cm3 , preferably 0.8 to 1.0, to ensure light-shielding properties, moisture permeability, and physical strength.
0.95g/ cm3 , thickness is 30-200μm, preferably 50
~120 μm, and the water vapor permeability is required to be 50 g/m 2 ·24 h or more, preferably 100 g/m 2 ·24 h or more. The light-reflecting paper is white, yellow, lightly colored, or silver-colored paper with a density of 0.7 to 1.0 g/cm 3 , preferably 0.8 to 0.95 to ensure printability, moisture permeability, and physical strength.
g/ cm3 , thickness 20~150μm, preferably 30~
90μm, moisture permeability 50g/ m2・24h or more, preferably
Characteristics of 100g/m 2 for 24 hours or more are required. Light reflective papers include unbleached kraft paper, semi-bleached kraft paper, bleached kraft paper, double-glazed kraft paper, double-glazed kraft paper, pure white wrapping paper, pure white roll paper, S-roll paper, G-roll paper, and single-glazed bleached kraft paper. paper, veined kraft paper, duostress paper, baryta base paper, kurpatsk paper, single-gloss kraft paper, thin imitation paper, high-quality paper,
Examples of shoji paper, art base paper, and light-shielding paper include colored paper obtained by adding a coloring substance to the above-mentioned light-reflecting paper, colored wood-free paper, light-shielding base paper for photographs, and the like. In particular, pure white roll paper and double-sided bleached kraft paper are preferred as the light-reflecting paper, and as the light-shielding paper, paper colored black with carbon black for use as light-shielding base paper for photography is preferred. In addition, in order to ensure light-shielding properties, physical strength, and moisture permeability, wrapping paper made by laminating light-shielding paper and light-reflecting paper has a density of 0.7 to 1.0 g/cm 3 and a thickness of 50 to 50 g/cm 3 .
250 μm and a moisture permeability of 50 g/m 2 for 24 hours or more. [Function] In the heat-sensitive recording material package of the present invention, the two sheets of paper, the light-shielding paper and the light-reflecting paper, block external temperature and light, and the diazo-based heat-sensitive recording material is heated to 50°C or higher, and the packaging When the humidity inside becomes high, the moisture inside the package is allowed to permeate and released to the outside. Therefore, the quality of the stored diazo thermosensitive recording material is always kept stable. [Example] The product 1 of the present invention corresponds to the embodiment shown in FIG. In this figure, reference numeral 1 denotes a light-shielding paper provided on the inner surface;
Reference numeral 2 denotes a light-reflecting paper provided on the outer surface, which is stacked one on top of the other so that there is a space 3 between them. Then, the above light-shielding paper 1
For this purpose, black paper with a density of 0.92 g/cm 3 and a thickness of 75 μm, consisting of 67% by weight of hardwood pulp (L material), 27% by weight of softwood pulp (N material), and 6% by weight of carbon black, was used. In addition, the light reflective paper 2 has a density of 0.89.
White bleached kraft paper of g/cm 3 and thickness of 67 μm was used. The product 2 of the present invention also corresponds to the embodiment shown in FIG. Light-shielding paper 1 has the same composition as product 1 of the present invention and has a density of 0.93.
A black paper with a density of 0.90 g/cm 3 and a thickness of 55 μm was used as the light - reflecting paper 2. Comparative product 1 is similar to the embodiment of FIG. Instead of the light-shielding paper 1, an LDPE light-shielding film layer 5 containing 3% by weight of carbon black with a thickness of 50 μm is provided, and the light-reflecting paper 2 has a density of 0.89 g/cm 3 and a thickness of 67 μm.
The same white bleached kraft paper as in Product 1 of the present invention was used. Comparative product 2 corresponds to the embodiment shown in FIG. This embodiment is constructed by laminating a light-shielding paper 1 and a light-reflecting paper 2 with an adhesive layer 4. The light-shielding paper 1 and the light-reflecting paper 2 are the same paper as the product 1 of the present invention,
For the adhesive layer 4, an extrusion laminate adhesive layer of LDPE resin was used. Conventional product 1 corresponds to the embodiment shown in Fig. 5, and is made of LDPE
As the light-shielding film layer 5, a film having a thickness of 70 μm and containing 3% by weight of carbon black was used. Conventional product 1 corresponds to the embodiment shown in FIG. 6, and the flexible sheet layer 6 has a density of 0.87 g/cm 3 and a thickness.
An extrusion laminate film layer containing 3% by weight of carbon black was used as the LDPE light-shielding film layer 5 using 80 μm bleached kraft paper. The packaging form of wrapping paper as described above is the second method.
This will be explained based on the diagram and FIG. FIG. 2 is a perspective view showing a bag-type packaging form;
A light-shielding paper 1 and a light-reflecting paper 2 are glued together at both ends to form a bag shape. FIG. 3 is a perspective view showing a packaged state of the diazo thermosensitive recording material. In the figure, reference numeral 10 is a diazo thermosensitive recording material, and this recording material 10 has a width of
It is wound around a paper core 11 having a diameter of 210 mm and an inner diameter of 3 inches. Next, the above-mentioned present invention products 1 to 2, comparative products 1 to 2,
2. Wrap a band-shaped diazo thermosensitive recording material in the wrapping paper of conventional products 1 and 2 as shown in Figure 3, and place it in a constant temperature bath at 55℃ for 42 hours.The coloration (fog) is determined as the Macbeth concentration. Ta. The results are shown in the table below.
【表】
表の評価及び試験方法は下記による。
優−非常に優れている 良−優れている
可−実用限度内 改良不要−問題あり
不可−実用不可
厚さ−JIS Ｐ−8118に準ずる。
透湿度−JIS Ｚ−0208に準ずる。
遮光性−ジアゾ系感熱記録材料を各包装材料を
使用して包装した後８万ルツクスの光に１時
間さらし遮光性をジアゾ感熱記録材料の着色
（かぶり）の程度により、検出、評価する。
実施例中のLDPEエクストルージヨン接着層４
及びLDPEフイルム層８としては三井ポリケミカ
ル社製ミラソン14（MI5.1g／10分、密度0.919ｇ／
cm3）そしてカーボンブラツクとしては三菱化成社
製オイルフオーネスブラツク＃44B（平均粒子径
21mu、PH7.7）を、LDPE遮光フイルム層５とし
ては日本ユニカー製DFD−0111（MI2.4g／10分、
密度0.923ｇ／cm3）をそれぞれ使用した。
以上の実施例は本考案のジアゾ系感熱記録材料
の包装材料として好ましい実施態様の代表例を示
したものであるが、本考案は以上に限定されるも
のでなく他の遮光紙と光反射紙との組み合わせが
可能である。
［考案の効果］
本考案の感熱記録材料の包装体は、別体である
遮光紙と光反射紙で構成され、包装内の湿気を良
好に外部へ放出するとともに、外部の温度を有効
に遮断して内部が高温になるのを防止するので、
プレカツプリングによる着色（かぶり）の発生が
大巾に減少し、ジアゾ系感熱記録材料の熱記録前
の保存性が極めて良好で安定した品質の状態を確
保できる。[Table] The evaluation and test methods for the table are as follows. Excellent - Very good Good - Excellent Fair - Within practical limits No improvement required - Problems Impossible - Not practical Thickness - Conforms to JIS P-8118. Moisture permeability - Conforms to JIS Z-0208. Light-shielding property - After packaging the diazo-based heat-sensitive recording material using each packaging material, it is exposed to light of 80,000 lux for one hour, and the light-shielding property is detected and evaluated by the degree of coloring (fogging) of the diazo-based heat-sensitive recording material. LDPE extrusion adhesive layer 4 in the example
And as the LDPE film layer 8, Mirason 14 manufactured by Mitsui Polychemical Co., Ltd. (MI5.1g/10 minutes, density 0.919g/
cm 3 ) and the carbon black used was Mitsubishi Kasei's oil-fired black #44B (average particle size
21mu, PH7.7), and as the LDPE light shielding film layer 5, Nippon Unicar DFD-0111 (MI2.4g/10 minutes,
A density of 0.923 g/cm 3 ) was used, respectively. The above examples show representative examples of preferred embodiments as packaging materials for the diazo thermosensitive recording material of the present invention, but the present invention is not limited thereto, and other light-shielding papers and light-reflecting papers may be used. A combination is possible. [Effects of the invention] The packaging body for the heat-sensitive recording material of the present invention is composed of separate light-shielding paper and light-reflecting paper, which effectively releases moisture inside the packaging to the outside and effectively blocks outside temperature. to prevent the inside from becoming hot,
The occurrence of coloring (fogging) due to pre-coupling is greatly reduced, and the storage stability of the diazo-based heat-sensitive recording material before heat recording is extremely good, and a stable quality state can be ensured.
第１図は本考案の一実施例の包装紙の部分断面
図で、第２図は袋形式の包装形態を示す斜視図で
あり、第３図は帯状ジアゾ系感熱材料の包装形態
を示す斜視図である。第４図は比較品の包装材料
の部分断面図で、第５図〜第８図は従来の包装材
料の部分断面図である。
１……遮光紙、２……光反射紙、３……〓間、
４……接着層、５……LDPE遮光フイルム層、６
……フレキシブルシート層、７……遮光フレキシ
ブルシート層、８……LDPEフイルム層、９……
金属箔遮光層、１０……紙巻芯、１１……ジアゾ
系感熱記録材料。
Fig. 1 is a partial sectional view of a wrapping paper according to an embodiment of the present invention, Fig. 2 is a perspective view showing a bag-type packaging form, and Fig. 3 is a perspective view showing a packaging form of a band-shaped diazo heat-sensitive material. It is a diagram. FIG. 4 is a partial sectional view of a comparative packaging material, and FIGS. 5 to 8 are partial sectional views of conventional packaging materials. 1... Light-shielding paper, 2... Light-reflecting paper, 3... Between,
4... Adhesive layer, 5... LDPE light-shielding film layer, 6
...Flexible sheet layer, 7... Light-shielding flexible sheet layer, 8... LDPE film layer, 9...
Metal foil light-shielding layer, 10... paper-wrapped core, 11... diazo thermosensitive recording material.
Claims (1)
200μm、透湿度が50ｇ／m2・24時間以上である
単層の遮光紙を、外面に白色、黄色、銀色又は
淡着色で密度が0.7〜1.0ｇ／cm3、厚さが20〜
150μm、透湿度が50ｇ／m2・24時間以上である
単層の光反射紙を重ね合わせ、かつ遮光紙と光
反射紙を重ね合わせた紙の密度が0.7〜1.0ｇ／
m3、厚さが50〜250μm、透湿度が50ｇ／m2・24
時間以上である包装紙でジアゾ系感熱記録材料
を包んだことを特徴とする感熱記録材料の包装
体。 (2) 前記遮光紙は１〜15重量％のカーボンブラツ
クを含んでいる実用新案登録請求の範囲第１項
記載の感熱記録材料の包装体。[Scope of claims for utility model registration] (1) The inner surface has a density of 0.7 to 1.0 g/cm 3 and a thickness of 30 to
A single-layer light-shielding paper with a diameter of 200 μm and a moisture permeability of 50 g/m 2 for 24 hours or more, with a white, yellow, silver, or light color on the outer surface, a density of 0.7 to 1.0 g/cm 3 , and a thickness of 20 to
A single layer of light-reflecting paper with a diameter of 150μm and a moisture permeability of 50g/ m2 /24 hours or more is stacked, and the density of the paper is 0.7 to 1.0g/
m3 , thickness 50-250μm, moisture permeability 50g/ m2・24
1. A package for a heat-sensitive recording material, characterized in that a diazo-based heat-sensitive recording material is wrapped in a wrapping paper that is longer than 1 hour. (2) The heat-sensitive recording material package according to claim 1, wherein the light-shielding paper contains 1 to 15% by weight of carbon black.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3320886U JPH0338142Y2 (en) | 1986-03-10 | 1986-03-10 | |
| US07/022,135 US4903834A (en) | 1986-03-10 | 1987-03-05 | Package for thermosensitive recording materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3320886U JPH0338142Y2 (en) | 1986-03-10 | 1986-03-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62146773U JPS62146773U (en) | 1987-09-16 |
| JPH0338142Y2 true JPH0338142Y2 (en) | 1991-08-12 |
Family
ID=30840603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3320886U Expired JPH0338142Y2 (en) | 1986-03-10 | 1986-03-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0338142Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3711374B2 (en) * | 1995-12-08 | 2005-11-02 | 昭和電工株式会社 | Outer packaging bag |
-
1986
- 1986-03-10 JP JP3320886U patent/JPH0338142Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62146773U (en) | 1987-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0443310Y2 (en) | ||
| US4378392A (en) | Laminate to extend the life of photographs | |
| US4452846A (en) | Film for packaging light-sensitive materials | |
| US4513050A (en) | Material for packaging light-sensitive materials | |
| JPS58173653A (en) | Packing material for photosensitive substance | |
| US4876125A (en) | Gusset bag for photographic photosensitive materials | |
| JPS6128984B2 (en) | ||
| JPH0363185A (en) | Infrared absorption nickel-dithiolene dye complex for dye donor element for use in laser induced dye thermal transfer | |
| JPH0530619B2 (en) | ||
| JPH0517037B2 (en) | ||
| US6619478B2 (en) | Light-shielding packaging system for photosensitive web roll | |
| US4903834A (en) | Package for thermosensitive recording materials | |
| JPH0338142Y2 (en) | ||
| EP1011021B1 (en) | Light-shielding packaging system for photosensitive web roll | |
| US20010022278A1 (en) | Light shielding packaging system for photosensitive web roll | |
| JP2005289401A (en) | Thermally recordable packaging material | |
| JPH04251784A (en) | Wrapping material capable of detecting local pressure and shock | |
| JP7427956B2 (en) | Method for manufacturing paper packaging materials and paper packaging bags | |
| JP2731960B2 (en) | Packaging method of photosensitive material | |
| JPH066351Y2 (en) | Packaging material for photographic light-sensitive material containing dye | |
| JPH0712996Y2 (en) | Packaging material for photosensitive materials | |
| JPH0687140B2 (en) | Method for manufacturing roll-shaped photosensitive material package | |
| JP4680084B2 (en) | Thermal transfer recording material, thermal transfer recording method and thermal transfer recording dye | |
| JPH0376688A (en) | Thermal transfer material | |
| JP2000112086A (en) | Package for photographic film |