JPH0220424B2 - - Google Patents
Info
- Publication number
- JPH0220424B2 JPH0220424B2 JP56118616A JP11861681A JPH0220424B2 JP H0220424 B2 JPH0220424 B2 JP H0220424B2 JP 56118616 A JP56118616 A JP 56118616A JP 11861681 A JP11861681 A JP 11861681A JP H0220424 B2 JPH0220424 B2 JP H0220424B2
- Authority
- JP
- Japan
- Prior art keywords
- gel
- substance
- food
- gas
- vapor
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 36
- 239000000126 substance Substances 0.000 claims description 36
- 230000000694 effects Effects 0.000 claims description 18
- 238000009920 food preservation Methods 0.000 claims description 13
- 239000002648 laminated material Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 239000002904 solvent Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 7
- 230000035699 permeability Effects 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 20
- 235000013305 food Nutrition 0.000 description 18
- 239000007789 gas Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- -1 ester compounds Chemical class 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 150000007524 organic acids Chemical class 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 4
- 239000003242 anti bacterial agent Substances 0.000 description 4
- 239000000417 fungicide Substances 0.000 description 4
- 239000012943 hotmelt Substances 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 235000005985 organic acids Nutrition 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000005452 food preservative Substances 0.000 description 3
- 235000019249 food preservative Nutrition 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 2
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 2
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 description 2
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 2
- 150000001241 acetals Chemical class 0.000 description 2
- 229940081735 acetylcellulose Drugs 0.000 description 2
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 2
- LLEMOWNGBBNAJR-UHFFFAOYSA-N biphenyl-2-ol Chemical compound OC1=CC=CC=C1C1=CC=CC=C1 LLEMOWNGBBNAJR-UHFFFAOYSA-N 0.000 description 2
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229920001249 ethyl cellulose Polymers 0.000 description 2
- 235000019325 ethyl cellulose Nutrition 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 2
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 2
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 2
- 229920001220 nitrocellulos Polymers 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 235000021067 refined food Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 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
- 239000003429 antifungal agent Substances 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012775 heat-sealing material Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 235000010292 orthophenyl phenol Nutrition 0.000 description 1
- 239000004306 orthophenyl phenol Substances 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229940047670 sodium acrylate Drugs 0.000 description 1
- DVQHRBFGRZHMSR-UHFFFAOYSA-N sodium methyl 2,2-dimethyl-4,6-dioxo-5-(N-prop-2-enoxy-C-propylcarbonimidoyl)cyclohexane-1-carboxylate Chemical compound [Na+].C=CCON=C(CCC)[C-]1C(=O)CC(C)(C)C(C(=O)OC)C1=O DVQHRBFGRZHMSR-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Landscapes
- Packages (AREA)
- Laminated Bodies (AREA)
Description
本発明は、基材の上に食品の保存効果を有する
蒸気を揮散するゲル状物質の層を適用し、ガス透
過性を有する素材と積層サンドイツチ化すること
で、片面もしくは両面より食品の保存効果を有す
る蒸気を揮散する積層材料を提供するものであ
る。
従来より加工食品等の食品類においては製造さ
れてから末端消費者の手に届くまでの流通段階で
の日持ちを良くするという目的で品質維持、保存
性の向上のための各種の方法が提案、適用されて
いる。その中には代表的な方法として炭酸ガス、
窒素ガスまたは混合ガスを用いたガス置換方式、
包装体内の空気を吸引し真空化する真空包装方
法、その他にレトルト殺菌方式、紫外線殺菌方
式、冷凍、冷蔵保存方式等の方法が従来より適用
されているが、いずれの方法も大規模な装置を必
要とし、また処理に多少ながら時間を要するため
に高速生産ラインに適用するには不向きである等
の短所がある。また包装体内の酸素濃度を低くす
ることにより食品の鮮度を保持する脱酸素剤使用
方式も行なわれているが、脱酸素剤を食品と別の
作業で封入する工程を要すること、水分を多く含
む食品に対しては黴や細菌の発生繁殖を防止する
効果が不十分であること等の問題があつた。
このような問題を解決する方法として本方法は
発明された。本発明の原理を以下に説明する。
従来より一部の溶媒類、有機酸類、あるいは昇
華性気化性防黴、防菌剤等の薬剤の蒸気が食品類
の品質維持、保存性向上に効果があることが一般
に知られており、本発明者らはこれらの薬剤を保
持適用した材料を得ることにより簡便かつ効果的
に食品類の品質維持、保存性向上が可能であろう
と考え、検討を開始した。しかしながら溶媒類は
液体であり、有機酸類、昇華性気化性防黴、防菌
剤の多くは、液体あるいは粉末状固体であるため
にこれらの薬剤の保持適用方法は極めて困難であ
る。例えば液状の薬剤あるいは粉末状薬剤の溶
液、分散液等を紙、布、不織布等の多孔質基材に
吸収保持させる方法が一般に考えられ適用されて
いるが、繊維間の空隙に液体を保持しているだけ
の状態であるために吸収量に限界があり、また圧
力のかかる状態、振動が加わる状態では液体が基
材から浸み出してしまう等の問題がある。
本発明者らは上記した事情を考慮し溶媒類、有
機酸類、昇華性気化性防黴、防菌剤等の薬剤を蒸
気としてのみ揮散する材料を得る方法について
種々検討を重ねた結果、ゲル状物質が少々の圧力
下においても液体を放出することがなく蒸気のみ
を放出することに着目し、溶媒類、有機酸類、省
華性気化性防黴、防菌剤等をゲル状物質として適
用することにより、常温常圧下またはそれに近い
条件下においてこれらの薬剤をその蒸気分圧によ
り蒸気の形態としてのみ放出することを特徴とす
る本発明の積層材料を得るに至つた。
以下に本発明の積層材料の構成につき図面を用
いて詳細に説明する。本発明の積層材料は第１図
に示すように、基材１の上に食品の保存効果を有
する蒸気を揮散するゲル状物質の層２を設け、さ
らにその上にガス透過性を有する素材４を重ね複
合積層化したことを特徴とするものである。
ここで、基材１としては紙、布、不織布、プラ
スチツクフイルム、金属箔等、またはこれらの複
合材等、ゲル状物質を保持適用することが可能で
ある素材であればいずれでも良い。
２は食品の保存効果を有する蒸気を揮散するゲ
ル状物質より成る層である。ここで言う食品の保
存効果を有するゲル状物質とは例えば以下の３種
類の物質が挙げられる。その１種類目としては食
品の保存効果を有する溶媒、例えばエタノール、
イソプロパノール、アセトン、プロピレングリコ
ール、グリセリン等の溶媒あるいはこれらの溶媒
のうちで水と相溶性のあるものと水の混合液をこ
れらの液体に対して可溶性を示す樹脂、例えば部
分鹸化型ポリビニルアルコール、ポリビニルアセ
タール、ポリビニルブチラール、アセチルセルロ
ース、ニトロセルロース、エチルセルロース、ヒ
ドロキシエチルセルロース、ヒドロキシプロピル
セルローズ等に溶解して高粘度のゲル状にした物
質、あるいはこれらの液体をアクリル酸―酢酸ビ
ニル共重合体、一部架橋されたアクリル酸系重合
体等、これらの液体に対して不溶性ではあるが吸
収膨潤性を示す樹脂に吸収膨潤させてゲル状にし
た物質、あるいはこれらの液体を加熱した後、Ｄ
―ソルビトールベンゾアルデヒド縮合体等の樹脂
を溶解し、冷却後寒天状にゲル化した物質等があ
る。
また、食品の保存効果を有する蒸気を揮散する
ゲル状物質の２種類目としては酢酸、プロピオン
酸、コハク酸、リンゴ酸等食品の保存効果を有す
る有機酸の水溶液をデンプン―アクリル酸ソーダ
グラフト重合体、一部架橋されたポリアクリル酸
（ソーダ）、ビニルアルコール―アクリル酸共重合
体等の水に対し不溶性ではあるが高い吸収膨潤性
を示す物質に吸収させてゲル状にした物質、ある
いは各種水溶性高分子物質に溶解して高粘度のゲ
ル状にした物質等である。
また、食品の保存効果を有する蒸気を揮散する
ゲル状物質の３種類目としてはジフエニル、オル
トフエニルフエノール、パラオキシ安息香酸エス
テル類化合物等の昇華性気化性防黴、防菌剤をエ
タノール、イソプロパノール、アセトン等の溶媒
に溶解した溶液を前述のこれらの溶媒に対する可
溶性樹脂、吸収膨潤性樹脂、すなわち、部分鹸化
型ポリビニルアルコール、ポリビニルアセター
ル、ポリビニルブチラール、アセチルセルロー
ス、ニトロセルロース、エチルセルロース、ヒド
ロキシエチルセルロース、ヒドロキシプロピルセ
ルロース等に適用しゲル状にした物質である。
これらの食品の保存効果を有する蒸気を揮散す
るゲル状物質の層を設ける方法としては、前述し
たような食品の保存効果を有する蒸気を揮散する
液体をあらかじめ可溶性物質あるいは吸収膨潤性
物質等に溶解あるいは吸収させてゲル状にした物
質を基材の上に塗布する方法（グラビアコーテイ
ング法、ブレードコーテイング法、ロールコーテ
イング法、シルクスクリーン法等）がとられる。
さらに食品の保存効果を有する蒸気を揮散する
ゲル状物質の塗布層の上にガス透過性を有する素
材４を重ねて複合積層化する。ガス透過性を有す
る素材４は食品の保存効果を有する蒸気を揮散す
るゲル状物質が直接に食品と接触し、該ゲル状物
質中に含有される成分が食品中に過剰に移行して
食品の品質、味覚等を変化させることを防止する
目的で適用するものであり、具体的には紙、布、
不織布、合成樹脂系微多孔性シート、全面に細孔
をあけたプラスチツクフイルム、あるいは酢酸ビ
ニルフイルム、グリセリン等の可塑剤を５〜10％
程度含有するポリビニルアルコールフイルム、酢
酸ビニル含有量18％以上のエチレン―酢酸ビニル
共重合体フイルム、トリアセチルセルロースフイ
ルム等が使用できる。
ガス透過性を有する素材４を重ねて積層体とし
て複合一体化する方法としては、第１図に示すよ
うに食品の保存効果を有する蒸気を揮散するゲル
状物質自体の粘着性を利用しゲル状物質の層２の
上に直接にガス透過性を有する素材４を密着させ
て積層化する方法、第２図ａに示すように基材上
全面に塗布されたゲル状物質の層２の上にゲル状
物質及びガス透過性を有する素材に対し接着性を
持つ接着剤３を部分的に塗布した後にガス透過性
を有する素材４を重ねて接着剤によりゲル状物質
とガス透過性を有する素材を接着して積層化する
方法、及び第２図ｂに示すように基材上部分的に
塗布されたゲル状物質に被覆されない基材の部分
に基材及びガス透過性を有する素材に対し接着性
を持つ接着剤３を塗布した後にガス透過性を有す
る素材４を重ねて接着剤により基材とガス透過性
を有する素材を接着して積層化する方法がとられ
る。
以上に述べたように製造された本発明の積層材
料は実際の使用に際しては密閉された包装容器内
に食品とともに封入するという使用法が一般的に
行なわれる。また、基材１にガス遮断性の優れた
材料としてアルミ箔（厚さ7μ以上）、エチレン―
ビニルアルコール共重合体（エチレン含有量20〜
45モル％、鹸化度96％以上）、塩化ビニリデン系
樹脂、ナイロン、ポリエチレンテレフタレート等
のフイルムまたはこれらの複合材を使用し、さら
にガス透過性を有する素材４にヒートシール性を
有する素材としてパルプとポリエチレン等の熱熔
融性樹脂繊維を混抄した不織布、熱熔融性樹脂繊
維のスパンボンデツドシート、全面に細孔のあい
た熱熔融性樹脂フイルム、熱熔融性樹脂から成る
微多孔性シート、酢酸ビニルフイルム、エチレン
―酢酸ビニル共重合体フイルム等またはこれらの
複合材を使用した場合には食品の保存効果を有す
る蒸気を揮散する面がヒートシール性を持つた積
層材料が得られ、第３図に示すようにガス透過性
を有する素材の面をヒートシールすることにより
食品の保存効果を有する蒸気を袋内にのみ揮散す
る包装袋として使用することが可能である。この
ように本発明の積層材料を使用することにより、
包装体内に食品の保存効果を有する物質がガス状
の形で揮散放出され、包装体内に封入された食品
の品質維持、及び黴、細菌等の発生繁殖の防止が
可能である。
以上詳細に述べたように本発明は従来から行な
われている食品の品質維持、保存性向上のための
方法と比較して非常に簡便に食品の品質維持、保
存性向上という目的を達成することが可能であ
り、利用範囲も広く、食品の流通上において多大
なる利用価値を有するものである。
以下に、本発明の実施例について説明するが、
本発明はこれに限定されるものではない。
＜実施例 １＞
エタノールとヒドロキシプロピルセルロース
（日本曹達製）を重量比で95／５の割合で１時間
混合撹拌して、粘度が約1.5×106cps（Ｂ型回転粘
度計による）であるゲル状物質を得た。このゲル
状物質をポリエチレンテレフタレートフイルム
12μ（ルミラー、東レ製）の上に逆格子状（格子
巾３mm、格子間隔７mm）に塗布した。ただし、塗
布量は30ｇ／m2であつた。さらに全面に接着剤を
塗布した全面に細孔のあいたポリエチレンフイル
ム50μ（穴径0.5mm、穴間隔５mm）と上記ゲル状物
質塗布ポリエチレンテレフタレートフイルム12μ
を重ねて貼り合わせ積層材料を得た。この積層材
料のポリエチレンフイルム面を内面にしてヒート
シールし袋（寸法15cm×20cm）を作り、カステラ
100ｇを封入した後完全に密封シールした。
また、比較例としてポリエチレンテレフタレー
トフイルム12μとポリエチレンフイルム60μを貼
り合わせたフイルムにより同様に袋（寸法15cm×
20cm）を作り、カステラ100ｇを封入した後完全
に密封シールした。ただし、実施例、比較例とも
に袋中のカステラを除いた空気容積は500mlであ
る。
上記のカステラを封入した袋を20℃―60％RH
の条件下に保存し、カステラ表面の黴の発生状況
を観察した結果を第１表に示す。
このように比較例のカステラには７日後に黴が
発生したが、本発明の積層材料を使用した場合に
は20日後でも黴の発生は認められず、カステラの
品質維持、保存性向上に顕著な効果を示すことが
確認された。
The present invention applies a layer of a gel-like substance that volatilizes steam that has a food preservation effect on a base material, and forms a sandwich sandwich layered with a gas-permeable material, thereby achieving a food preservation effect from one or both sides. The object of the present invention is to provide a laminated material that evaporates vapor having the following properties. Various methods have been proposed to maintain the quality and improve shelf life of foods such as processed foods in the past, with the aim of extending the shelf life of processed foods and other foods during the distribution stage from when they are manufactured until they reach the end consumer. Applied. Typical methods include carbon dioxide,
Gas replacement method using nitrogen gas or mixed gas,
Vacuum packaging methods, which suction the air inside the package to create a vacuum, and other methods such as retort sterilization, ultraviolet sterilization, freezing, and refrigerated storage methods have been used, but all of these methods require large-scale equipment. It also has drawbacks such as being unsuitable for application to high-speed production lines because it requires some processing time. In addition, oxygen absorbers are used to maintain the freshness of food by lowering the oxygen concentration inside the package, but this method requires a separate process to encapsulate the oxygen absorber and the food, and contains a large amount of moisture. For food products, there were problems such as insufficient effectiveness in preventing the growth and propagation of mold and bacteria. This method was invented as a method to solve such problems. The principle of the present invention will be explained below. It has been generally known that the vapors of some solvents, organic acids, sublimation-vaporizing antifungal agents, antibacterial agents, etc. are effective in maintaining the quality and improving the preservability of foods. The inventors thought that it would be possible to easily and effectively maintain the quality and improve the preservability of foods by obtaining materials that retain and apply these drugs, and began investigations. However, solvents are liquids, and many organic acids, sublimation-vaporizable fungicides, and antibacterial agents are liquids or powdered solids, so it is extremely difficult to retain and apply these agents. For example, a method is generally considered and applied in which a solution or dispersion of a liquid or powdered drug is absorbed and retained in a porous substrate such as paper, cloth, or nonwoven fabric. There is a limit to the amount of absorption due to the fact that the liquid is only in a state where the base material is wet, and there are also problems such as the liquid seeping out from the base material when pressure is applied or vibration is applied. Taking into account the above circumstances, the present inventors have conducted various studies on methods for obtaining materials that volatilize chemicals such as solvents, organic acids, sublimable vaporizable fungicides, and antibacterial agents only as vapor. Focusing on the fact that substances do not release liquid but only vapor even under slight pressure, we apply solvents, organic acids, flame-reducing vaporizable fungicides, antibacterial agents, etc. as gel-like substances. As a result, we have obtained the laminated material of the present invention, which is characterized in that it releases these drugs only in the form of vapor depending on its vapor partial pressure at or near normal temperature and pressure. The structure of the laminated material of the present invention will be explained in detail below with reference to the drawings. As shown in FIG. 1, the laminated material of the present invention is provided with a layer 2 of a gel-like material that evaporates vapor and has a food preservation effect on a base material 1, and further has a gas permeable material 4 on top of the layer 2. It is characterized by being made into a composite laminate by overlapping them. Here, the base material 1 may be any material that can hold and apply a gel-like substance, such as paper, cloth, nonwoven fabric, plastic film, metal foil, or a composite material thereof. 2 is a layer made of a gel-like substance that evaporates steam and has a food preservation effect. The gel-like substances that have a food preservation effect mentioned here include, for example, the following three types of substances. The first type is a solvent that has a food preservation effect, such as ethanol,
Solvents such as isopropanol, acetone, propylene glycol, glycerin, etc. or mixtures of these solvents that are compatible with water and water can be used with resins that are soluble in these liquids, such as partially saponified polyvinyl alcohol, polyvinyl Highly viscous gel-like substances dissolved in acetal, polyvinyl butyral, acetyl cellulose, nitrocellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, etc., or these liquids are mixed with acrylic acid-vinyl acetate copolymer, partially cross-linked. After heating these liquids, D
- There are substances that dissolve resins such as sorbitol benzaldehyde condensates and gel into agar after cooling. In addition, the second type of gel-like substance that volatilizes vapor that has a food preservative effect is a starch-sodium acrylate graft polymer containing an aqueous solution of an organic acid that has a food preservative effect, such as acetic acid, propionic acid, succinic acid, and malic acid. Substances made into a gel by being absorbed into substances that are insoluble in water but exhibit high absorption and swelling properties, such as coalesced or partially crosslinked polyacrylic acid (soda), vinyl alcohol-acrylic acid copolymers, or various other substances. It is a substance that is dissolved in a water-soluble polymer substance to form a highly viscous gel. In addition, the third type of gel-like substances that volatilize vapor and have a food preservation effect include sublimable vaporizable mold and fungicides such as diphenyl, orthophenylphenol, and paraoxybenzoic acid ester compounds, as well as ethanol and isopropanol. , a solution dissolved in a solvent such as acetone is added to the above-mentioned soluble resins and absorbent swelling resins for these solvents, namely partially saponified polyvinyl alcohol, polyvinyl acetal, polyvinyl butyral, acetylcellulose, nitrocellulose, ethylcellulose, hydroxyethylcellulose, hydroxyl. It is a gel-like substance applied to propylcellulose, etc. As a method for providing a layer of a gel-like material that evaporates the vapor that has the effect of preserving food, the liquid that evaporates the vapor that has the effect of preserving food as described above is dissolved in advance in a soluble substance or absorbent swelling substance. Alternatively, a method (gravure coating method, blade coating method, roll coating method, silk screen method, etc.) of applying an absorbed gel-like substance onto the base material is used. Further, a gas-permeable material 4 is layered on top of a coating layer of a gel-like material that evaporates vapor and has a food preservation effect to form a composite layer. The gas-permeable material 4 has a gel-like substance that evaporates vapor that has a food-preservative effect and comes into direct contact with the food, and the components contained in the gel-like substance migrate into the food excessively, causing the food to deteriorate. It is applied for the purpose of preventing changes in quality, taste, etc. Specifically, it is applied to paper, cloth,
Non-woven fabric, synthetic resin microporous sheet, plastic film with pores on the entire surface, vinyl acetate film, 5-10% plasticizer such as glycerin
Polyvinyl alcohol film containing a certain amount of vinyl acetate, ethylene-vinyl acetate copolymer film containing 18% or more of vinyl acetate, triacetyl cellulose film, etc. can be used. As shown in Figure 1, a method of stacking gas-permeable materials 4 to form a composite laminate is to use the adhesiveness of the gel-like substance itself, which volatilizes vapor that has the effect of preserving food, to form a gel-like material. A method of laminating a material 4 having gas permeability directly on a layer 2 of a substance, as shown in FIG. After partially applying an adhesive 3 having adhesive properties to a gel-like substance and a gas-permeable material, a gas-permeable material 4 is stacked on top of the gel-like substance and a gas-permeable material. A method of adhesion and lamination, and adhesion to the base material and a gas permeable material on the part of the base material that is not covered by the gel-like substance partially applied on the base material as shown in FIG. 2b. A method is used in which after applying an adhesive 3 having a gas permeability, a gas permeable material 4 is layered, and the base material and the gas permeable material are adhered to each other with the adhesive to form a laminate. In actual use, the laminated material of the present invention produced as described above is generally sealed together with food in a sealed packaging container. In addition, for the base material 1, aluminum foil (thickness of 7μ or more), ethylene foil, etc.
Vinyl alcohol copolymer (ethylene content 20~
45 mol%, saponification degree of 96% or more), vinylidene chloride resin, nylon, polyethylene terephthalate, etc., or a composite material thereof, and in addition to the gas permeable material 4, pulp and heat sealing material are used. Non-woven fabric mixed with hot-melt resin fibers such as polyethylene, spunbonded sheets of hot-melt resin fibers, hot-melt resin films with pores all over the surface, microporous sheets made of hot-melt resins, vinyl acetate films. , ethylene-vinyl acetate copolymer film, etc., or a composite material thereof, a laminated material with a heat-sealable surface that evaporates vapor and has a food preservation effect can be obtained, as shown in Figure 3. By heat-sealing the surface of the gas-permeable material, it is possible to use the bag as a packaging bag that evaporates vapor, which has a food preservation effect, only into the bag. By using the laminated material of the present invention in this way,
Substances that have a food preservation effect are volatilized and released in gaseous form within the package, making it possible to maintain the quality of the food enclosed within the package and prevent the growth and propagation of mold, bacteria, and the like. As described in detail above, the present invention achieves the purpose of maintaining food quality and improving preservability much more easily than conventional methods for maintaining food quality and improving preservability. It can be used in a wide range of applications, and has great utility value in food distribution. Examples of the present invention will be described below.
The present invention is not limited to this. <Example 1> Ethanol and hydroxypropyl cellulose (manufactured by Nippon Soda) were mixed and stirred at a weight ratio of 95/5 for 1 hour, and the viscosity was approximately 1.5 x 10 6 cps (as measured by a B-type rotational viscometer). A gel-like substance was obtained. This gel-like substance is made into polyethylene terephthalate film.
It was applied in a reciprocal grid pattern (grid width 3 mm, grid spacing 7 mm) on 12μ (Lumirror, manufactured by Toray Industries). However, the coating amount was 30 g/m 2 . Furthermore, a 50μ polyethylene film with pores on the entire surface coated with adhesive (hole diameter 0.5mm, hole spacing 5mm) and a 12μ polyethylene terephthalate film coated with the gel-like substance mentioned above.
were laminated to obtain a laminated material. Heat-seal this laminated material with the polyethylene film side inside to make a bag (dimensions 15cm x 20cm) and make a castella bag.
After enclosing 100 g, it was completely sealed. In addition, as a comparative example, a bag (dimensions 15 cm ×
20cm), filled with 100g of castella cake, and then sealed completely. However, in both Examples and Comparative Examples, the air volume in the bag excluding the castella cake was 500 ml. Place the bag containing the castella above at 20℃ - 60%RH.
Table 1 shows the results of observing the appearance of mold on the surface of Castella cakes after storage under these conditions. As described above, mold developed on the castella castella of the comparative example after 7 days, but when the laminated material of the present invention was used, no mold was observed even after 20 days, which was significant in maintaining the quality of the castella and improving its shelf life. It was confirmed that this effect was effective.
【表】
〓 る 〓
[Table] 〓 〓
第１図、第２図ａ，ｂは本発明の積層材料の断
面図、第３図は本発明の積層材料の使用例の断面
図である。
１…基材、２…ゲル状物質の層、３…接着剤、
４…ガス透過性を有する素材。
1, 2a and 2b are cross-sectional views of the laminated material of the present invention, and FIG. 3 is a cross-sectional view of an example of use of the laminated material of the present invention. 1... Base material, 2... Gel-like substance layer, 3... Adhesive,
4...Material having gas permeability.
Claims (1)
いは溶液を、前記溶媒あるいは溶液に対して可溶
性を示す樹脂に溶解して高粘度のゲル状にした物
質、または、前記溶媒あるいは溶液に対して不溶
性であるが、吸収膨潤性を示す樹脂に吸収膨潤さ
せてゲル状にして物質のいずれかからなるゲル状
物質の層およびガス透過性を有する素材を複合積
層化した食品保存効果を有する積層材料。1 A highly viscous gel-like substance obtained by dissolving a solvent or solution that has a food preservation effect on a base material in a resin that is soluble in the solvent or solution, or A laminated material having a food preservation effect, which is a composite lamination of a layer of a gel-like substance made of a substance that is insoluble but absorbs and swells with a resin that exhibits absorption-swelling properties and is made into a gel, and a material that has gas permeability. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56118616A JPS5820442A (en) | 1981-07-29 | 1981-07-29 | Laminating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56118616A JPS5820442A (en) | 1981-07-29 | 1981-07-29 | Laminating material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5820442A JPS5820442A (en) | 1983-02-05 |
| JPH0220424B2 true JPH0220424B2 (en) | 1990-05-09 |
Family
ID=14740946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56118616A Granted JPS5820442A (en) | 1981-07-29 | 1981-07-29 | Laminating material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5820442A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0225477U (en) * | 1988-08-06 | 1990-02-20 | ||
| JPH0366822U (en) * | 1989-11-01 | 1991-06-28 | ||
| JP5913456B2 (en) * | 2014-07-08 | 2016-04-27 | 株式会社プロテックス | Air purifier |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590535A (en) * | 1978-12-28 | 1980-07-09 | Nippon Synthetic Chem Ind Co Ltd:The | Membranous substance |
| JPS56159166A (en) * | 1980-05-12 | 1981-12-08 | Toyo Boseki | Laminate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS612027Y2 (en) * | 1978-10-04 | 1986-01-23 |
-
1981
- 1981-07-29 JP JP56118616A patent/JPS5820442A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590535A (en) * | 1978-12-28 | 1980-07-09 | Nippon Synthetic Chem Ind Co Ltd:The | Membranous substance |
| JPS56159166A (en) * | 1980-05-12 | 1981-12-08 | Toyo Boseki | Laminate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5820442A (en) | 1983-02-05 |
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