JP2020089566A - Wet sheet - Google Patents
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- JP2020089566A JP2020089566A JP2018228531A JP2018228531A JP2020089566A JP 2020089566 A JP2020089566 A JP 2020089566A JP 2018228531 A JP2018228531 A JP 2018228531A JP 2018228531 A JP2018228531 A JP 2018228531A JP 2020089566 A JP2020089566 A JP 2020089566A
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- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 39
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 108010039918 Polylysine Proteins 0.000 claims abstract description 23
- 229920000656 polylysine Polymers 0.000 claims abstract description 23
- 239000004310 lactic acid Substances 0.000 claims abstract description 14
- 235000014655 lactic acid Nutrition 0.000 claims abstract description 14
- 239000004094 surface-active agent Substances 0.000 claims abstract description 12
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 239000002253 acid Substances 0.000 claims abstract description 9
- 150000007513 acids Chemical class 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000012459 cleaning agent Substances 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 26
- 239000000835 fiber Substances 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 12
- 229920003002 synthetic resin Polymers 0.000 claims description 9
- 239000000057 synthetic resin Substances 0.000 claims description 9
- 229920000297 Rayon Polymers 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000004745 nonwoven fabric Substances 0.000 claims description 7
- 239000002964 rayon Substances 0.000 claims description 7
- 239000002280 amphoteric surfactant Substances 0.000 claims description 2
- 239000003093 cationic surfactant Substances 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 35
- 239000003599 detergent Substances 0.000 abstract description 29
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 25
- 230000001954 sterilising effect Effects 0.000 abstract description 24
- 230000006866 deterioration Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 18
- 210000004027 cell Anatomy 0.000 description 12
- 239000000243 solution Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- -1 hydrogen ions Chemical class 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 230000007935 neutral effect Effects 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 230000001580 bacterial effect Effects 0.000 description 6
- 239000002585 base Substances 0.000 description 6
- 229940001447 lactate Drugs 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000002708 enhancing effect Effects 0.000 description 5
- 235000013305 food Nutrition 0.000 description 5
- 229920001817 Agar Polymers 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 102000007327 Protamines Human genes 0.000 description 4
- 108010007568 Protamines Proteins 0.000 description 4
- 239000008272 agar Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000249 desinfective effect Effects 0.000 description 4
- 235000013373 food additive Nutrition 0.000 description 4
- 239000002778 food additive Substances 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 description 4
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 4
- 229920000053 polysorbate 80 Polymers 0.000 description 4
- 229940068968 polysorbate 80 Drugs 0.000 description 4
- 229940048914 protamine Drugs 0.000 description 4
- 239000011550 stock solution Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 241000191967 Staphylococcus aureus Species 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229920006317 cationic polymer Polymers 0.000 description 3
- 238000010411 cooking Methods 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 2
- 239000003899 bactericide agent Substances 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 239000005018 casein Substances 0.000 description 2
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 2
- 235000021240 caseins Nutrition 0.000 description 2
- 210000000170 cell membrane Anatomy 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 230000002070 germicidal effect Effects 0.000 description 2
- 230000000415 inactivating effect Effects 0.000 description 2
- 239000000787 lecithin Substances 0.000 description 2
- 235000010445 lecithin Nutrition 0.000 description 2
- 229940067606 lecithin Drugs 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 238000001139 pH measurement Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000013268 sustained release Methods 0.000 description 2
- 239000012730 sustained-release form Substances 0.000 description 2
- 229920001351 ε-poly-L-lysine Polymers 0.000 description 2
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 235000020776 essential amino acid Nutrition 0.000 description 1
- 239000003797 essential amino acid Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 235000019462 natural additive Nutrition 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000006174 pH buffer Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920006306 polyurethane fiber Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- NGSFWBMYFKHRBD-UHFFFAOYSA-M sodium lactate Chemical compound [Na+].CC(O)C([O-])=O NGSFWBMYFKHRBD-UHFFFAOYSA-M 0.000 description 1
- 239000003206 sterilizing agent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WPLOVIFNBMNBPD-ATHMIXSHSA-N subtilin Chemical compound CC1SCC(NC2=O)C(=O)NC(CC(N)=O)C(=O)NC(C(=O)NC(CCCCN)C(=O)NC(C(C)CC)C(=O)NC(=C)C(=O)NC(CCCCN)C(O)=O)CSC(C)C2NC(=O)C(CC(C)C)NC(=O)C1NC(=O)C(CCC(N)=O)NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C1NC(=O)C(=C/C)/NC(=O)C(CCC(N)=O)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)CNC(=O)C(NC(=O)C(NC(=O)C2NC(=O)CNC(=O)C3CCCN3C(=O)C(NC(=O)C3NC(=O)C(CC(C)C)NC(=O)C(=C)NC(=O)C(CCC(O)=O)NC(=O)C(NC(=O)C(CCCCN)NC(=O)C(N)CC=4C5=CC=CC=C5NC=4)CSC3)C(C)SC2)C(C)C)C(C)SC1)CC1=CC=CC=C1 WPLOVIFNBMNBPD-ATHMIXSHSA-N 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 239000003021 water soluble solvent Substances 0.000 description 1
Abstract
Description
本発明は、ウエットシートに関する。 The present invention relates to a wet sheet.
近年、人が日常生活を送る空間において、洗浄剤等を含ませたウエットシートを用いる機会が増えている。これに伴い、ウエットシートに対して求められる性能は多様化し、これに応じた技術が提案されてきた。
例えば、特許文献１には、洗浄対象物における残香性を向上させる観点から、乳化作用を有する水溶性のアニオン性ポリマー及び香料を含有する乳化液が含浸された硬質表面用ウエットシートが記載されている。また、特許文献２には、医療施設における医療機器等の汚染防止のために、殺菌剤を含浸したウエットシートが用いられることが記載されている。このウエットシートにおいて、殺菌剤の成分を医療機器等の外装のプラスティック類に影響を与えないものとする技術が記載されている。このようにウエットシートに対する用途やニーズは多岐に亘るようになってきた。
上記の殺菌剤等に関し、特許文献３には、ポリリジンと、魚の白子を酸処理して得たプロタミン等とを組み合わせた食品加工設備又は調理器具用の殺菌洗浄剤組成物が記載されている。この食品加工設備又は調理器具用の殺菌洗浄剤組成物は使用後に、すすぎを必要とする。
In recent years, there are increasing opportunities to use a wet sheet containing a cleaning agent or the like in a space where people live their daily lives. Along with this, the performance required for wet sheets has diversified, and techniques have been proposed accordingly.
For example, Patent Document 1 describes a hard surface wet sheet impregnated with an emulsion containing a water-soluble anionic polymer having an emulsifying action and a fragrance, from the viewpoint of improving the residual aroma of a cleaning object. There is. Further, Patent Document 2 describes that a wet sheet impregnated with a germicide is used to prevent contamination of medical equipment and the like in medical facilities. In this wet sheet, a technique is described in which the components of the bactericide do not affect the plastics of the exterior of medical equipment and the like. In this way, the applications and needs for wet sheets have become diverse.
Regarding the above-mentioned sterilizing agent and the like, Patent Document 3 describes a sterilizing detergent composition for a food processing facility or a cooking utensil in which polylysine is combined with protamine or the like obtained by acid-treating fish roe. The germicidal detergent composition for food processing equipment or cookware requires rinsing after use.
ウエットシートを使用する環境として住宅空間が挙げられる。近年では、ライフスタイルの変化に伴って、キッチン、ダイニング及びリビングを互いにボーダレス化して、ひと続きの空間にするものが見られる。また、調理機器の発達等に伴って、キッチンだけでなくダイニングやリビングに跨って調理を行ったりすることがあり、食事の場所もダイニングに限定されない。このように人の往来がしやすくなった分、汚れや菌飛散の範囲が広がりやすい。
このようなライフスタイルの変化に伴って、従来のような仕切られた空間や設備毎ではなく、人の行動を軸に、人の集う場所の様々な物を衛生管理する必要が出てきた。
そのため、手に触れる物に対し、いつでも水洗い不要で手軽に汚れの除去、除菌及び除菌後の抗菌を安心安全に行いたいというニーズが高まってきている。また、このようなニーズは、住宅空間に留まらず、職場や乗り物など人の行き来が多い様々な場所においても多くなっている。
An environment where a wet sheet is used is a residential space. In recent years, along with changes in lifestyle, it has been seen that kitchens, dining rooms, and living rooms are borderless with each other to create a continuous space. Further, with the development of cooking equipment, cooking may be performed not only in the kitchen but also over the dining room or living room, and the place of meal is not limited to the dining room. In this way, the range of stains and germs is likely to increase as much as people can easily come and go.
With such a change in lifestyle, it has become necessary to hygienically manage various things in a place where people gather, not on each partitioned space or facility as in the past, but on the behavior of people.
Therefore, there is an increasing need to easily remove stains, sterilize, and antibacterially and safely perform antibacterial and safe operation on objects that can be touched with hands, without needing to wash them with water at any time. Further, such needs are increasing not only in the residential space but also in various places where many people come and go, such as workplaces and vehicles.
しかし、除菌後に、乳幼児や子供、更にはペットなどが被洗浄物に触れる可能性があり、知らずに該被洗浄物に残留する洗浄剤の成分が体内に取り込まれないとも限らない。そのため、洗浄剤の成分の生体への影響は抑えなければならない。また、除菌された被洗浄物に手が触れる機会が多くなり、手荒れが起きないよう配慮が求められる。さらには、ウエットシートで拭き取り後の被洗浄物が洗浄剤の成分で劣化等しないよう、また、洗浄剤の成分の臭いが気にならないよう配慮しなければならない。このような生活環境に配慮したものは、特許文献１〜３には記載がない。また、特許文献３記載のプロタミンなど動物由来の殺菌成分は臭いが強すぎるため、生活環境において洗い流さずに用いるウエットシートの洗浄剤の成分としては適さない。 However, there is a possibility that an infant, a child, a pet, and the like will come into contact with the article to be washed after the sterilization, and the components of the detergent remaining on the article to be washed unknowingly may not be taken into the body. Therefore, it is necessary to suppress the influence of the components of the cleaning agent on the living body. In addition, it is necessary to take care not to get the hands rough because there are more chances that the disinfected items to be cleaned will come into contact with the hands. Furthermore, care must be taken so that the cleaning object after being wiped off with a wet sheet does not deteriorate due to the components of the cleaning agent and that the smell of the cleaning agent components is not noticeable. There is no description in Patent Documents 1 to 3 in consideration of such a living environment. Further, the bactericidal component derived from animals such as protamine described in Patent Document 3 has an excessively strong odor and is not suitable as a component of a detergent for a wet sheet used in a living environment without being washed off.
本発明は、上記の点に鑑み、汚れの除去性のみならず、除菌性及び除菌後の抗菌性に優れ、生体への影響、被洗浄物の劣化及び臭いを抑えたウエットシートに関する。 In view of the above points, the present invention relates to a wet sheet which is excellent not only in stain removability but also in sterilization properties and antibacterial properties after sterilization, and which suppresses the effects on the living body, deterioration of the object to be cleaned and odor.
本発明は、洗浄剤が基材シートに含浸されたウエットシートであって、前記洗浄剤が、ポリリジン０．０１質量％以上１．０質量％以下、乳酸、クエン酸若しくはこれらの酸のいずれかの塩、又はこれらの酸若しくは塩の２種以上の組み合わせ０．０１質量％以上１.０質量％以下、界面活性剤０．０１質量％以上１．０質量％以下を有し、シート絞り液のｐＨが６．０以上８．０以下であるウエットシートを提供する。 The present invention is a wet sheet in which a base material sheet is impregnated with a detergent, wherein the detergent is polylysine 0.01% by mass or more and 1.0% by mass or less, lactic acid, citric acid or any of these acids. Or a combination of two or more kinds of these acids or salts, and 0.01% by mass to 1.0% by mass and a surfactant from 0.01% by mass to 1.0% by mass. A wet sheet having a pH of 6.0 or more and 8.0 or less is provided.
本発明のワイピングシートは、汚れの除去性のみならず、除菌性及び除菌後の抗菌性に優れ、生体への影響、被洗浄物の劣化及び臭いを抑えたものとなる。 INDUSTRIAL APPLICABILITY The wiping sheet of the present invention is excellent not only in stain removability but also in sterilization properties and antibacterial properties after sterilization, and suppresses the influence on the living body, deterioration of the object to be cleaned and odor.
以下、本発明のウエットシートについて好ましい実施形態に基づき説明する。 Hereinafter, the wet sheet of the present invention will be described based on preferred embodiments.
本発明のウエットシートは、洗浄剤が基材シートに含浸されたものであり、人が日常生活で手に触れる様々なものの汚れ除去及び除菌清拭に用いられる。以下、汚れ除去及び除菌清拭の対象物を被洗浄物という。また、本発明において、洗浄剤とは、目に見える汚れを落とすいわゆる洗剤だけでなく、細菌を除去等する剤（殺菌剤、除菌剤及び抗菌剤等）を含む剤である。 The wet sheet of the present invention is obtained by impregnating a base sheet with a cleaning agent, and is used for stain removal and sterilization/wiping of various objects that people touch in daily life. Hereinafter, the object of stain removal and disinfection/wiping is referred to as an object to be cleaned. Further, in the present invention, the cleaning agent is not only a so-called detergent that removes visible stains, but also an agent that includes an agent that removes bacteria (bactericide, disinfectant, antibacterial agent, etc.).
前記洗浄剤は、（Ａ）ポリリジン０．０１質量％以上１．０質量％以下、（Ｂ）乳酸、クエン酸若しくはこれらの酸のいずれかの塩、又はこれらの酸若しくは塩の２種以上の組み合わせ０．０１質量％以上１．０質量％以下、（Ｃ）界面活性剤０．０１質量％以上１．０質量％以下を有する。本発明における洗浄剤は、上記（Ａ）〜（Ｃ）の成分を含んで前記洗浄液のｐＨを好適に制御する観点及び汚れの除去性を高める観点から、水溶液であることが好ましい。なお、上記成分の割合は、有効分の割合（％）を示す。 The detergent includes (A) polylysine of 0.01% by mass or more and 1.0% by mass or less, (B) lactic acid, citric acid or a salt of any of these acids, or two or more of these acids or salts. A combination of 0.01% by mass or more and 1.0% by mass or less and (C) a surfactant of 0.01% by mass or more and 1.0% by mass or less. The cleaning agent in the present invention is preferably an aqueous solution from the viewpoint of suitably controlling the pH of the cleaning liquid containing the components (A) to (C) and enhancing the stain removability. In addition, the ratio of the said component shows the ratio (%) of effective components.
本発明のウエットシートは前記洗浄液を含んでおり、シート絞り液のｐＨは、６．０以上８．０以下である。前記「ｐＨ６．０以上８．０以下」は、洗浄剤の液性が中性の範囲であることを意味する（本発明において上記ｐＨの範囲を単に中性ということがある。）。これにより、本発明のウエットシートを用いて被洗浄物を拭いた際に、放出される洗浄剤の液が中性の範囲のものとなる。その結果、被洗浄物に損傷等（塗装の剥がれや素材の変色等）の劣化を生じさせず、手荒れを抑えて、前述の（Ａ）及び（Ｂ）の成分の組み合わせによる除菌及び抗菌作用をより高めることができる。絞り液のｐＨは、洗浄剤の原液に対しシートへの含浸によって調整できる。 The wet sheet of the present invention contains the cleaning liquid, and the pH of the sheet squeezing liquid is 6.0 or more and 8.0 or less. The above-mentioned "pH 6.0 or more and 8.0 or less" means that the liquid property of the detergent is in the neutral range (the above-mentioned pH range may be simply referred to as neutral in the present invention). As a result, when the object to be cleaned is wiped using the wet sheet of the present invention, the liquid of the cleaning agent released is in the neutral range. As a result, the cleaning object is not deteriorated due to damage (peeling of coating, discoloration of material, etc.), hand roughness is suppressed, and sterilization and antibacterial action by the combination of the above-mentioned components (A) and (B). Can be increased. The pH of the squeezing liquid can be adjusted by impregnating the sheet with the stock solution of the cleaning agent.
中性の洗浄剤において、前記（Ａ）の成分と前記（Ｂ）の成分との組み合わせが、本発明のウエットシートにおける除菌性と除菌後の抗菌性を優れたものとする。この洗浄剤は、原液として被洗浄物に直接適用する場合よりも、本発明のウエットシートとして含浸させて被洗浄物を清拭した場合の方が、液性をより好適に制御でき、除菌及び抗菌の効果が高くなる。洗浄液を手にやさしい中性の水溶液にするためにポリリジンを中和する必要がある。中和に用いる酸等を硫酸やそのナトリウム塩とするとポリリジンの除菌効果が阻害されやすくなることが確認された。これに対し、本発明では、乳酸、クエン酸、を添加することでポリリジンの除菌及び抗菌効果が高くなる。これは、上記の組み合わせによって、カチオンポリマーであるポリリジンが菌表面へとどきやすくし、ポリリジン本来の除菌効果が発現しやすくなることによるものと考えられる。また、ナトリウム等の金属イオンはカチオン系ポリマーより先に細胞膜に吸着するのに対し、乳酸、クエン酸はカチオン性ポリマーを効率よく細胞表面に到達させると推察される。更に、洗浄液に金属イオンが含まれている場合でも、該洗浄液をシートに含浸することでシートに金属イオンが吸着し、塩濃度を下げて、よりポリリジン本来の除菌効果が発現しやすくなっていると考えられる。 In the neutral detergent, the combination of the component (A) and the component (B) makes the wet sheet of the present invention excellent in disinfecting property and antibacterial property after disinfecting. This cleaning agent is more suitable to control the liquidity in the case of being impregnated as the wet sheet of the present invention and wiping the cleaning object than in the case of directly applying it to the cleaning object as an undiluted solution, and disinfecting it. And the antibacterial effect is enhanced. It is necessary to neutralize polylysine in order to make the washing solution a neutral aqueous solution that is easy on the hands. It was confirmed that if the acid or the like used for neutralization is sulfuric acid or its sodium salt, the disinfecting effect of polylysine is likely to be inhibited. On the other hand, in the present invention, the addition of lactic acid and citric acid enhances the sterilization and antibacterial effects of polylysine. It is considered that this is because the above-mentioned combination makes it easier for polylysine, which is a cationic polymer, to reach the surface of the bacterium, so that the original bactericidal effect of polylysine is easily exhibited. Further, it is presumed that metal ions such as sodium are adsorbed to the cell membrane before the cationic polymer, whereas lactic acid and citric acid allow the cationic polymer to reach the cell surface efficiently. Further, even when the cleaning liquid contains metal ions, the sheet is impregnated with the cleaning liquid to adsorb metal ions on the sheet, which lowers the salt concentration, making it easier for the polylysine original bactericidal effect to develop. It is believed that
また、前記（Ａ）のポリリジン、前記（Ｂ）の乳酸及びリン酸は、後述のとおり天然成分由来の成分であり、食品添加物として使用される成分であるため、生体への影響は非常に小さい。また、前記（Ａ）のポリリジン、前記（Ｂ）の乳酸及びリン酸は、プロタミンのような異臭を放たない。生体への影響を抑える観点から、前記洗浄剤の水以外の成分が全て上記食品添加物として使用されるものであることが好ましい。この「食品添加物」とは、食品衛生法第１０条に基づいて厚生労働大臣の指定を受けた「指定添加物」（食品衛生法施行規則別表第一）、長年使用されてきた天然添加物であって品目が決められている「既存添加物」、「天然香料」及び「一般飲食物添加物」に挙げられたものを意味する。 In addition, the polylysine of (A) and the lactic acid and phosphoric acid of (B) are components derived from natural components as described below and are components used as food additives, so they have a great influence on the living body. small. Further, the polylysine of (A) and the lactic acid and phosphoric acid of (B) do not give off an offensive odor like protamine. From the viewpoint of suppressing the effect on the living body, it is preferable that all components other than water in the detergent be used as the food additive. This "food additive" is a "designated additive" designated by the Minister of Health, Labor and Welfare based on Article 10 of the Food Sanitation Law (Appendix 1 of the Food Sanitation Law Enforcement Regulations), a natural additive that has been used for many years. And means those listed in "existing additives", "natural flavors", and "general food and drink additives" whose items are determined.
本発明のウエットシートは、日常生活において手に触れる種々の物（被洗浄物）を拭いて洗浄剤を放出させた後、該被洗浄物の表面を洗い流さないようにして用いられる。これにより、前記被洗浄物に付着した洗浄剤の成分が残留（リーブオン）して除菌及び除菌後の抗菌作用を発現させる。本発明のウエットシートがこのように使用されることを考慮すると、前記洗浄剤は揮発性の成分を含むことが好ましい。 The wet sheet of the present invention is used by wiping various objects (objects to be cleaned) that are touched in daily life to release the cleaning agent and then not washing the surface of the object to be cleaned. As a result, the components of the detergent adhering to the object to be cleaned remain (leave on), and sterilization and an antibacterial action after sterilization are exhibited. Considering that the wet sheet of the present invention is used in this manner, it is preferable that the cleaning agent contains a volatile component.
前記（Ａ）のポリリジンは、必須アミノ酸の１つであるＬ−リジンの低分子天然ホモポリマーであり（ε−ポリ−Ｌ−リジン、ＥＰＬ）、細菌による発酵によって生産される。すなわち、天然成分由来の抗菌剤である。ポリリジンの分子量は、除菌及び抗菌作用をより高める観点から、２０００以上が好ましく、３０００以上がより好ましく、４０００以上がさらに好ましい。また、ポリリジンの分子量は、安定性の観点から、８０００以下が好ましく、７０００以下がより好ましく、６０００以下がさらに好ましい。具体的には、ポリリジンの分子量は、２０００以上８０００以下が好ましく、３０００以上７０００以下がより好ましく、４０００以上６０００以下がさらに好ましい。
ポリリジンの前記洗浄剤にける含有割合は、除菌及び抗菌作用をより高める観点から、０．０５質量％以上が好ましく、０．１質量％以上がより好ましい。また、ポリリジンの前記洗浄剤にける含有割合は、安全性の観点から、１．０質量％以下が好ましく、０．５質量％以下がより好ましい。具体的には、ポリリジンの前記洗浄剤にける含有割合は、０．０５質量％以上１．０質量％以下が好ましく、０．１質量％以上０．５質量％以下がより好ましい。
The polylysine (A) is a low molecular weight natural homopolymer of L-lysine, which is one of the essential amino acids (ε-poly-L-lysine, EPL), and is produced by fermentation by bacteria. That is, it is an antibacterial agent derived from natural ingredients. The molecular weight of polylysine is preferably 2,000 or more, more preferably 3,000 or more, still more preferably 4,000 or more, from the viewpoint of further enhancing sterilization and antibacterial action. From the viewpoint of stability, the molecular weight of polylysine is preferably 8,000 or less, more preferably 7,000 or less, and even more preferably 6000 or less. Specifically, the molecular weight of polylysine is preferably 2,000 or more and 8,000 or less, more preferably 3,000 or more and 7,000 or less, still more preferably 4,000 or more and 6,000 or less.
The content ratio of polylysine in the detergent is preferably 0.05% by mass or more, and more preferably 0.1% by mass or more, from the viewpoint of further enhancing sterilization and antibacterial action. From the viewpoint of safety, the content ratio of polylysine in the detergent is preferably 1.0% by mass or less, more preferably 0.5% by mass or less. Specifically, the content ratio of polylysine in the detergent is preferably 0.05% by mass or more and 1.0% by mass or less, and more preferably 0.1% by mass or more and 0.5% by mass or less.
前記（Ｂ）の成分については、乳酸又はクエン酸のいずれかであってもよく、乳酸塩又はクエン酸塩のいずれかであってもよく、これらの２種以上を組み合わせたものであってもよい。乳酸及びクエン酸は、洗浄剤の液性がｐＨ６．０以上８．０以下の中性の範囲にある状況下において、酢酸に比べて、除菌性及び抗菌性が高い。これは、中性の洗浄液中において非解離分子の割合が多くなり、該非解離分子が本発明のウエットシートから放出された際に、微生物の細胞膜を通過しやすいことによる。すなわち、より多くの非解離分子が微生物の細胞内で解離して、微生物が細胞内の水素イオンの排出にエネルギーを消耗し、細胞内のｐＨの変化により活動を妨げる作用をすることになる。これによって前記（Ｂ）の成分の抗菌力が高いものとなる。
そのため、前記（Ｂ）の成分には、酢酸を除く、乳酸、クエン酸又はこれらのいずれかの塩が含まれる。乳酸塩及びクエン酸塩としては、Ｎａ、Ｋ、Ｃａ等のアルカリ金属塩が挙げられる。前記（Ｂ）の成分としては、乳酸塩又はクエン酸であることが好ましく、この場合の洗浄剤は前述の水溶液であることが好ましい。これにより、乳酸塩、クエン酸塩が水に溶解して解離すると同時に、水の存在により乳酸分子と乳酸イオンの平衡状態、クエン酸分子とクエン酸イオンとの平衡状態が生じ、前述の除菌及び抗菌作用を発現する。また、乳酸塩、クエン酸塩は、ｐＨ緩衝剤として洗浄剤の中性を保ちやすく作用（緩衝作用）する。例えば、塩分を含む汚れが付着した被洗浄物を本発明のウエットシートを用いて拭いた場合、塩分のナトリウムイオンが本発明のウエットシートに吸着され、該ウエットシート内の洗浄剤のｐＨをｐＨ緩衝作用によって新たに平衡状態へと制御できる。その際、ナトリウムイオンが本発明のウエットシートに吸着されたまま、平衡状態における乳酸分子及びクエン酸分子がさらに放出されて前述の除菌及び抗菌作用が続く。このような観点から、前記（Ｂ）の成分には、乳酸ナトリウム塩、クエン酸ナトリウム塩が含まれることが好ましい。この場合、前記（Ｂ）の乳酸ナトリウム塩、クエン酸ナトリウム塩は、ナトリウムが多い環境下で活動が抑制されやすい前記（Ａ）のポリリジンの除菌及び抗菌作用をより活発させる助剤として作用する。
The component (B) may be either lactic acid or citric acid, either lactate or citrate, or a combination of two or more thereof. Good. Lactic acid and citric acid have higher bactericidal properties and antibacterial properties than acetic acid in the situation where the liquid properties of the detergent are in the neutral range of pH 6.0 or more and 8.0 or less. This is because the proportion of non-dissociated molecules in the neutral washing solution increases, and when the non-dissociated molecules are released from the wet sheet of the present invention, they easily pass through the cell membrane of the microorganism. That is, more non-dissociated molecules are dissociated in the cells of the microorganism, and the microorganism consumes energy for excretion of hydrogen ions in the cells, and acts to prevent the activity due to the change in intracellular pH. As a result, the component (B) has a high antibacterial activity.
Therefore, the component (B) includes lactic acid, citric acid, or a salt of any of these except acetic acid. Examples of lactate and citrate include alkali metal salts such as Na, K and Ca. The component (B) is preferably lactate or citric acid, and the detergent in this case is preferably the above-mentioned aqueous solution. As a result, lactate and citrate are dissolved in water and dissociated, and at the same time, the equilibrium state of lactic acid molecules and lactate ions and the equilibrium state of citric acid molecules and citrate ions are generated due to the presence of water. And develops an antibacterial effect. In addition, lactate and citrate act as pH buffers to easily maintain the neutrality of the detergent (buffer action). For example, when an article to be cleaned with stains containing salt is wiped using the wet sheet of the present invention, sodium ions of the salt are adsorbed to the wet sheet of the present invention, and the pH of the cleaning agent in the wet sheet is adjusted to pH. A new equilibrium state can be controlled by the buffer action. At that time, the lactic acid molecules and the citric acid molecules in the equilibrium state are further released while the sodium ions are adsorbed on the wet sheet of the present invention, and the above-mentioned sterilization and antibacterial action continues. From such a viewpoint, it is preferable that the component (B) contains a sodium lactate salt and a sodium citrate salt. In this case, the sodium salt of lactic acid and the sodium salt of citric acid of (B) act as an auxiliary agent for activating the sterilization and antibacterial action of polylysine of (A) whose activity is easily suppressed in an environment containing a lot of sodium. ..
前記（Ｂ）の成分の前記洗浄剤にける含有割合は、除菌及び抗菌作用をより高める観点から、０．１質量％以上が好ましく、０．３質量％以上がより好ましい。また、前記（Ｂ）の成分の前記洗浄剤にける含有割合は、仕上がりの観点から、１．０質量％以下が好ましく、０．５質量％以下がより好ましい。具体的には、前記（Ｂ）の成分の前記洗浄剤にける含有割合は、０．１質量％以上１．０質量％以下が好ましく、０．３質量％以上０．５質量％以下がより好ましい。 The content ratio of the component (B) in the detergent is preferably 0.1% by mass or more, and more preferably 0.3% by mass or more, from the viewpoint of further enhancing the disinfection and antibacterial action. Further, the content ratio of the component (B) in the cleaning agent is preferably 1.0% by mass or less, and more preferably 0.5% by mass or less, from the viewpoint of finish. Specifically, the content ratio of the component (B) in the detergent is preferably 0.1% by mass or more and 1.0% by mass or less, and more preferably 0.3% by mass or more and 0.5% by mass or less. preferable.
前記（Ｃ）の界面活性剤は、洗浄剤における洗浄基剤となる成分であり、ウエットシートにおいて通常用いられるものを特に制限なく採用することができる。この界面活性剤は、本発明のウエットシートの洗浄剤において、液安定性を高め、前記（Ａ）の成分及び前記（Ｂ）の成分が分離するのを防ぐことができる。
この界面活性剤の前記洗浄剤にける含有割合は、基材損傷性を低減する観点から、１．０質量％以下が好ましく、０．５質量％以下がより好ましい。また、前記界面活性剤の前記洗浄剤にける含有割合は、洗浄性を高める観点から、０．０１質量％以上が好ましく、０．０５質量％以上がより好ましい。具体的には、前記界面活性剤の成分の前記洗浄剤にける含有割合は、０．０１質量％以上１．０質量％以下が好ましく、０．０５質量％以上０．５質量％以下がより好ましい。
The surfactant (C) is a component serving as a cleaning base in the cleaning agent, and those usually used in wet sheets can be adopted without particular limitation. This surfactant can enhance the liquid stability and prevent the component (A) and the component (B) from being separated from each other in the wet sheet detergent of the present invention.
The content ratio of this surfactant in the detergent is preferably 1.0% by mass or less, and more preferably 0.5% by mass or less, from the viewpoint of reducing the damage to the substrate. In addition, the content ratio of the surfactant in the detergent is preferably 0.01% by mass or more, and more preferably 0.05% by mass or more, from the viewpoint of enhancing detergency. Specifically, the content ratio of the surfactant component in the detergent is preferably 0.01% by mass or more and 1.0% by mass or less, and more preferably 0.05% by mass or more and 0.5% by mass or less. preferable.
前記（Ｃ）の界面活性剤としては、非イオン界面活性剤、陽イオン界面活性剤若しくは両性界面活性剤又はこれら２種以上の組み合わせであることがより好ましい。すなわち、陰イオン界面活性以外のものであることが好ましい。これにより、＋の荷電を持つ前記（Ａ）のポリリジンと界面活性剤との間でのコンプレックスの発生を抑えて、ポリリジンによる除菌及び抗菌作用をより発現させやすくすることができる。 The surfactant (C) is more preferably a nonionic surfactant, a cationic surfactant or an amphoteric surfactant, or a combination of two or more thereof. That is, it is preferably one other than the anionic surfactant. As a result, generation of a complex between the polylysine (A) having a positive charge and the surfactant can be suppressed, and sterilization and antibacterial action by polylysine can be more easily exhibited.
本発明における前記洗浄剤は、水を含んだ水溶液とすることが好ましい。また、前記（Ａ）〜（Ｃ）の成分に加えて、他の成分を含有するものであってもよい。他の成分としては、例えば溶剤、色素、防腐剤、香料、ｐＨ調整剤などが挙げられる。これらの他の成分は、前述の食品添加物として使用されるものであることが好ましく、その添加量は本発明のウエットシートの目的に即して適宜設定されることが好ましい。 The cleaning agent in the present invention is preferably an aqueous solution containing water. Further, in addition to the components (A) to (C), other components may be contained. Examples of other components include solvents, pigments, preservatives, fragrances, and pH adjusters. These other components are preferably used as the above-mentioned food additives, and the addition amount thereof is preferably set appropriately in accordance with the purpose of the wet sheet of the present invention.
前記溶剤としては水溶性であることが好ましい。水溶性溶剤としては、例えば一価アルコール、多価アルコール及びその誘導体から選ばれる１種以上のものが好適である。特に仕上がり性の点から蒸気圧２６７Ｐａ（２ｍｍＨｇ）以上のものが好ましい。例えば、エタノール、イソプロピルアルコール、プロパノール、エチレングリコールモノメチルエーテル、プロピレングリコールモノメチルエーテル等が好ましい。溶剤は、洗浄剤中に、１．８質量％以上４０質量％以下、特に０．４質量％以上２０質量％以下含有されることが好ましい。 The solvent is preferably water-soluble. As the water-soluble solvent, for example, one or more kinds selected from monohydric alcohols, polyhydric alcohols and derivatives thereof are suitable. Particularly, from the viewpoint of finishability, a vapor pressure of 267 Pa (2 mmHg) or more is preferable. For example, ethanol, isopropyl alcohol, propanol, ethylene glycol monomethyl ether, propylene glycol monomethyl ether and the like are preferable. The detergent preferably contains 1.8% by mass or more and 40% by mass or less, and particularly 0.4% by mass or more and 20% by mass or less in the detergent.
本発明のウエットシートに用いられる基材シートは、繊維シートが好ましく、不織布がより好ましい。不織布としては、ウエットシートに通常用いられるものを特に制限なく採用することができる。清拭操作時の強度を保持する観点から、合成樹脂繊維が混用されてなるものが好ましい。該合成樹脂繊維の具体例としては、ポリエステル繊維（ポリエチレンテレフタレート等）、ポリエチレン繊維、ポリプロピレン繊維、ポリエステル−ポリエチレン芯鞘繊維、ポリプロピレン−ポリエチレン芯鞘繊維、アクリル繊維、ナイロン繊維、ビニロン（ポリビニルアルコール系繊維）ポリ塩化ビニリデン繊維、ポリウレタン繊維等が挙げられる。さらには高密度ポリエチレンポリプロピレン等の共重合体系の繊維も合成樹脂繊維に含まれる。 The base sheet used for the wet sheet of the present invention is preferably a fibrous sheet, more preferably a non-woven fabric. As the non-woven fabric, those usually used for wet sheets can be used without particular limitation. From the viewpoint of maintaining the strength during the wiping operation, it is preferable to use a mixture of synthetic resin fibers. Specific examples of the synthetic resin fiber include polyester fiber (polyethylene terephthalate, etc.), polyethylene fiber, polypropylene fiber, polyester-polyethylene core-sheath fiber, polypropylene-polyethylene core-sheath fiber, acrylic fiber, nylon fiber, vinylon (polyvinyl alcohol fiber). ) Polyvinylidene chloride fiber, polyurethane fiber and the like can be mentioned. Further, fibers of a copolymer system such as high density polyethylene polypropylene are also included in the synthetic resin fibers.
また、不織布としては、前記合成樹脂繊維と他の天然繊維（木綿等）や再生繊維（レーヨン等）とが混合されたものであることがより好ましい。これにより、洗浄剤の保持性と放出性を両立させ、かつ、被洗浄物に付着した液状の汚れに対する吸水性を向上させることができる。 Further, the non-woven fabric is more preferably a mixture of the synthetic resin fiber and other natural fiber (cotton etc.) or recycled fiber (rayon etc.). This makes it possible to achieve both retention and release of the cleaning agent and improve water absorption of liquid stains attached to the object to be cleaned.
上記の不織布の製造方法としは、この種の物品において通常用いられる方法を適宜採用することができる。例えば、湿式法、乾式法、抄紙法、接着法（ケミカルボンディング、サーマルボンディング）、機械結合法（ニードルパンチ法、水流交絡法）、スパンボンド法、交合法などが挙げられ、これらを組み合わせたものであってもよい。 As a method for manufacturing the above-mentioned nonwoven fabric, a method usually used in this kind of article can be appropriately adopted. For example, a wet method, a dry method, a papermaking method, a bonding method (chemical bonding, thermal bonding), a mechanical bonding method (needle punch method, hydroentangling method), a spunbond method, a mating method, and the like, and combinations thereof May be
本発明のウエットシートの基材シートは、レーヨンと合成樹脂繊維とを混合したものであることが好ましく、これらの混合繊維を有するスパンレース不織布であることがより好ましい。 The base sheet of the wet sheet of the present invention is preferably a mixture of rayon and synthetic resin fiber, and more preferably a spunlaced nonwoven fabric having these mixed fibers.
基材シートにおけるレーヨンの質量割合は、洗浄液徐放量の観点から、９０質量％以下が好ましく、８５質量％以下がより好ましく、８０質量％以下が更に好ましい。また、基材シートにおけるレーヨンの質量割合は、シート強度の観点から、５０質量％以上が好ましく、６０質量％以上がより好ましく、７０質量％以上が更に好ましい。具体的には、基材シートにおけるレーヨンの質量割合は、５０質量％以上９０質量％以下が好ましく、６０質量％以上８５質量％以下がより好ましく、７０質量％以上８０質量％以下が更に好ましい。したがって、基材シートにおける合成樹脂繊維の質量割合は、１０質量％以上５０質量％以下が好ましく、１５質量％以上４０質量％以下がより好ましく、２０質量％以上３０質量％以下が更に好ましい。 The mass ratio of rayon in the substrate sheet is preferably 90% by mass or less, more preferably 85% by mass or less, and further preferably 80% by mass or less from the viewpoint of the sustained release amount of the cleaning liquid. From the viewpoint of sheet strength, the mass ratio of rayon in the substrate sheet is preferably 50% by mass or more, more preferably 60% by mass or more, and further preferably 70% by mass or more. Specifically, the mass ratio of rayon in the substrate sheet is preferably 50% by mass or more and 90% by mass or less, more preferably 60% by mass or more and 85% by mass or less, and further preferably 70% by mass or more and 80% by mass or less. Therefore, the mass ratio of the synthetic resin fibers in the substrate sheet is preferably 10% by mass or more and 50% by mass or less, more preferably 15% by mass or more and 40% by mass or less, and further preferably 20% by mass or more and 30% by mass or less.
本発明のウエットシートにおいて、前述の洗浄剤の含有割合は、徐放性の観点から、前記基材シートの質量に対して１００質量％以上が好ましく、１５０質量％以上がより好ましく、２００質量％以上が更に好ましい。また、該洗浄剤の含有割合は、液保持性の観点から、前記基材シートの質量に対して１０００質量％以下が好ましく、５００質量％以下がより好ましく、３００質量％以下が更に好ましい。具体的には、前記洗浄剤の含有割合は、前記基材シートの質量に対して１００質量％以上１０００質量％以下が好ましく、１５０質量％以上５００質量％以下がより好ましく、２００質量％以上３００質量％以下が更に好ましい。 In the wet sheet of the present invention, the content ratio of the above-mentioned cleaning agent is preferably 100% by mass or more, more preferably 150% by mass or more, and 200% by mass from the viewpoint of sustained release. The above is more preferable. In addition, the content ratio of the cleaning agent is preferably 1000% by mass or less, more preferably 500% by mass or less, and further preferably 300% by mass or less with respect to the mass of the substrate sheet from the viewpoint of liquid retention. Specifically, the content ratio of the cleaning agent is preferably 100% by mass or more and 1000% by mass or less, more preferably 150% by mass or more and 500% by mass or less, more preferably 200% by mass or more and 300% by mass with respect to the mass of the base material sheet. It is more preferably not more than mass%.
以下、本発明を実施例に基づきさらに詳しく説明するが、本発明はこれにより限定して解釈されるものではない。なお、本実施例において「部」および「％」とは特に断らない限りいずれも質量基準である。また、下記表中の「−」は項目名に該当する値や事項を有さないこと等を意味する。 The present invention will be described in more detail based on the following examples, but the invention is not intended to be limited thereto. In the examples, “parts” and “%” are based on mass unless otherwise specified. In addition, "-" in the table below means that there is no value or item corresponding to the item name.
（実施例１〜６）
表１に記載の洗浄剤を調製し、レーヨン８０％及び合成樹脂繊維（芯鞘型合成樹脂繊維、芯：ポリプロピレン、鞘：ポリエチレン）２０％を混合したスパンレース不織布（坪量４０ｇ／ｍ２）に含浸させた。含浸はスポイトからの滴下の方法によって行った。含浸させた不織布シートを２００ｍｍ×１４０ｍｍに裁断して実施例１〜６のウエットシート試料１〜６とした。なお、洗浄剤の各成分は、表１に示す配合率に原料有効分の割合を掛けた分を含有させた（以下、各比較例においても同様。）。
(Examples 1 to 6)
A spunlace non-woven fabric (basis weight 40 g/m 2 ) prepared by preparing the cleaning agent shown in Table 1 and mixing 80% rayon and 20% synthetic resin fiber (core-sheath type synthetic resin fiber, core: polypropylene, sheath: polyethylene) Was impregnated into. The impregnation was performed by the method of dropping from a dropper. The impregnated non-woven sheet was cut into 200 mm×140 mm to obtain wet sheet samples 1 to 6 of Examples 1 to 6. In addition, each component of the cleaning agent contained a content obtained by multiplying the blending ratio shown in Table 1 by the ratio of the raw material effective component (hereinafter, the same applies to each comparative example).
（比較例１〜９）
表２に記載の洗浄剤を調製した以外は、実施例１と同様にして比較例１〜９のウエットシート試料Ｃ１〜Ｃ９を作製した。
(Comparative Examples 1 to 9)
Wet sheet samples C1 to C9 of Comparative Examples 1 to 9 were prepared in the same manner as in Example 1 except that the cleaning agents shown in Table 2 were prepared.
（比較例１０〜１５）
表３に記載の洗浄剤を調製した以外は、実施例１と同様にして比較例１０〜１５のウエットシート試料Ｃ１０〜Ｃ１５を作製した。
(Comparative Examples 10 to 15)
Wet sheet samples C10 to C15 of Comparative Examples 10 to 15 were prepared in the same manner as in Example 1 except that the cleaning agents shown in Table 3 were prepared.
（比較例１６〜２２）
表４に記載の洗浄剤を調製した以外は、実施例１と同様にして比較例１６〜２２のウエットシート試料Ｃ１６〜Ｃ２２を作製した。
(Comparative Examples 16 to 22)
Wet sheet samples C16 to C22 of Comparative Examples 16 to 22 were prepared in the same manner as in Example 1 except that the cleaning agents shown in Table 4 were prepared.
（１）洗浄剤原液のｐＨの測定
ＨＯＲＩＢＡ ＬＡＱＵＡ ｐＨ/ＩＯＮ ＭＥＴＥＲ Ｆ−７２（商品名、株式会社堀場製作所製）を用いて測定した。
（２）絞り液のｐＨの測定
洗浄原液を一様にシートに対し２５０％含浸し、絞ぼり液を前記（１）に示した装置を用いて測定した。
(1) Measurement of pH of undiluted detergent solution It was measured using HORIBA LAQUA pH/ION METER F-72 (trade name, manufactured by Horiba Ltd.).
(2) Measurement of pH of squeezing liquid The sheet was uniformly impregnated with the undiluted solution for washing at 250%, and the squeezing liquid was measured using the apparatus described in (1) above.
（３）除菌性能の試験
下記のとおり、黄色ブドウ球菌として”Staphylococcus aureus NBRC12732”を用いて、日本薬局方 微生物限度試験法 Ｂー５３１の試験方法（懸濁法）に基づき除菌性能の試験を行った。除菌試験において得られた値が２．０以上で除菌性が高いと評価される。
（洗浄原液の場合）
試料として作製した各ウエットシートの原液を１０ｍｌ採取し、２５℃で保温した。１０ｍｌの洗浄原液は、各実施例および各比較例につき２つずつ用意した。次いで、黄色ブドウ球菌（Ｓ．ａｕｒｅｕｓ）の菌母液（１０８ｃｅｌｌｓ／ｍｌ）を、０．１ｍｌ前記絞り液と混合し接種したサンプルを各々２種作成した。接種後、５分間保持（接触）し、各液体洗浄性組成物に対して、計２種のサンプルを作成した。混合時の菌濃度はそれぞれ１０６ｃｅｌｌｓ／ｍｌであった。各サンプルを２５℃の保温状態で５分間静置した。その後、各サンプル１ｍｌを不活化剤のＬＰ（ポリシンおよびポリソルベート８０）液９ｍｌに入れ、不活化し、菌濃度を１０５ｃｅｌｌｓ／ｍｌとした。次いで、ＬＰ液に入れたサンプル０．１ｍｌをシャーレ内のＳＣＤＬＰ寒天培地（ＳｏｙｂｅａｎＣａｓｅｉｎ Ｄｉｇｅｓｔ Ａｇａｒ ｗｉｔｈ Ｌｅｃｉｔｈｉｎ ａｎｄ Ｐｏｌｙｓｏｒｂａｔｅ８０）に塗沫し、該シャーレを回転させ、コンラージ棒で広げた。このときの菌濃度は１０４ｃｅｌｌｓ／シャーレであった。その後、恒温槽で３５℃にて２４時間培養して、コロニー数を測定した。
除菌活性値：ｌｏｇ（初期植え付け菌体数）−ｌｏｇ（所定時間後の菌体数）
（絞り液の場合）
試料として作製した各ウエットシートから絞り液を１０ｍｌ採取し、以下、洗浄原液の場合と同様な操作で除菌性能の試験を行った。
(3) Test of sterilization performance As described below, the test of sterilization performance was performed using "Staphylococcus aureus NBRC12732" as Staphylococcus aureus based on the test method (suspension method) of the Japanese Pharmacopoeia B-531. I went. When the value obtained in the sterilization test is 2.0 or more, it is evaluated that the sterilization property is high.
(In case of undiluted solution)
10 ml of the stock solution of each wet sheet prepared as a sample was sampled and kept at 25°C. Two 10 ml washing stock solutions were prepared for each example and each comparative example. Then, 0.1 ml of S. aureus mother liquor (10 8 cells/ml) was mixed with 0.1 ml of the squeezing liquid to prepare two inoculated samples. After inoculation, the sample was kept (contacted) for 5 minutes, and two kinds of samples in total were prepared for each liquid detersive composition. The bacterial concentration at the time of mixing was 10 6 cells/ml, respectively. Each sample was allowed to stand for 5 minutes while kept at 25°C. Then, 1 ml of each sample was put into 9 ml of an inactivating agent LP (polycin and polysorbate 80) solution to inactivate it, and the bacterial concentration was adjusted to 10 5 cells/ml. Then, 0.1 ml of the sample contained in the LP liquid was spread on SCDLP agar medium (Soybean Casein Digest Agar with Lecithin and Polysorbate 80) in a petri dish, and the petri dish was rotated and spread with a large bar. The bacterial concentration at this time was 10 4 cells/dish. Then, it culture|cultivated at 35 degreeC in a thermostat for 24 hours, and measured the number of colonies.
Sterilization activity value: log (number of cells initially planted)-log (number of cells after a predetermined time)
(In case of throttling liquid)
10 ml of the squeezing liquid was sampled from each wet sheet prepared as a sample, and the sterilization performance test was conducted by the same operation as in the case of the stock solution for washing.
（４）抗菌性能の試験
前記（３）と同じ黄色ブドウ球菌を用いて、下記のとおり、ＪＩＳＺ２８０１「抗菌加工製品−抗菌性試験方法・抗菌効果」に記載の試験方法に基づき抗菌性能の試験を行った。抗菌試験において得られた値が２．０以上で除菌性が高いと評価とされる。
試料として作製した各ウエットシートで５ｃｍ×５ｃｍのＰＰ樹脂を拭き乾燥しサンプルとした。
黄色ブドウ球菌（Ｓ．ａｕｒｅｕｓ）の菌母液を０．１ｍｌを１/２００に希釈した普通ブイヨン培地液１０ｍｌに入れ調整した。調整した菌液を、サンプルであるＰＰ樹脂に０．４ｍｌ接種後、菌液の乾燥を防ぐようにフィルムを覆いかぶせ、２４時間保持（接触）した。その時の環境は３５℃、湿度９０％とした。その後、不活化剤のＬＰ（ポリシンおよびポリソルベート８０）液１０ｍｌに入れ、不活化し、次いで、ＬＰ液に入れたサンプル０．１ｍｌをシャーレ内のＳＣＤＬＰ寒天培地（ＳｏｙｂｅａｎＣａｓｅｉｎ Ｄｉｇｅｓｔ Ａｇａｒ ｗｉｔｈ Ｌｅｃｉｔｈｉｎ ａｎｄ Ｐｏｌｙｓｏｒｂａｔｅ８０）に塗沫し、該シャーレを回転させ、コンラージ棒で広げた。このときの菌濃度は１０４ｃｅｌｌｓ／シャーレであった。その後、恒温槽で３５℃にて２４時間培養して、コロニー数を測定した。
抗菌活性値：ｌｏｇ（初期植え付け菌体数）−ｌｏｇ（所定時間後の菌体数）
(4) Test of antibacterial performance Using the same Staphylococcus aureus as in (3) above, a test of antibacterial performance is carried out based on the test method described in JIS Z2801 "Antibacterial processed product-antibacterial test method/antibacterial effect" as follows. went. When the value obtained in the antibacterial test is 2.0 or more, it is evaluated as having high bactericidal property.
Each wet sheet prepared as a sample was wiped and dried with a 5 cm×5 cm PP resin to give a sample.
A mother liquor of S. aureus was prepared by adding 0.1 ml of 1/200 to 10 ml of a normal broth medium solution. 0.4 ml of the adjusted bacterial solution was inoculated on a sample PP resin, covered with a film so as to prevent the bacterial solution from being dried, and kept (contacted) for 24 hours. The environment at that time was 35° C. and the humidity was 90%. Then, 10 ml of LP (polycin and polysorbate 80) solution of an inactivating agent is put in and inactivated, and then 0.1 ml of the sample put in the LP solution is put in SCDLP agar medium (Soybean Casein Digest Agar with Lecithin and Polysorbate 80) in a petri dish. It was smeared, the petri dish was rotated, and spread with a conradi stick. The bacterial concentration at this time was 10 4 cells/dish. Then, it culture|cultivated at 35 degreeC in a thermostat for 24 hours, and measured the number of colonies.
Antibacterial activity value: log (number of cells initially planted)-log (number of cells after a predetermined time)
（５）匂い試験
調整した試験液を５０ｍｌ用意し、試験液の匂いを下記３段階臭気強度表示法で官能評価を行った。官能評価は３人で行い、３人の３段階臭気強度表示法による得点の平均（小数点第一位四捨五入）を求めた。
〔３段階臭気強度表示法〕
３：匂わない
２：匂う
１：強く匂う
(5) Odor test 50 ml of the adjusted test liquid was prepared, and the odor of the test liquid was sensory-evaluated by the following three-stage odor intensity display method. The sensory evaluation was performed by three persons, and the average of the scores (rounded to one decimal place) by the three-stage odor intensity display method was calculated.
[3-level odor intensity display method]
3: Do not smell 2: Smell 1: Smell strongly
上記試験の結果を下記表１〜４に示す。 The results of the above test are shown in Tables 1 to 4 below.
上記表１〜４に示すように、前記（Ａ）の成分と前記（Ｂ）の成分との組み合わせを有さない比較例１〜１１、比較例１３〜２２では、ウエットシートから被洗浄物に放出された洗浄剤を想定した絞り液による抗菌活性値は２．０未満であり、抗菌効果が十分でなかった。比較例１２は、プロタミンを使用していたため、魚臭が発生し、本発明のウエットシートの使用には適さないものであった。
これに対し、実施例１〜６では、前記（Ａ）の成分と前記（Ｂ）の成分との組み合わせを有することにより、気になる臭いも無く、絞り液による抗菌活性値３．３、３．５、４．７と基準２．０の１．６倍以上の抗菌効果を示していた。
As shown in Tables 1 to 4 above, in Comparative Examples 1 to 11 and Comparative Examples 13 to 22 which do not have the combination of the component (A) and the component (B), the wet sheet is used to be cleaned. The antibacterial activity value by the squeezing liquid assuming the released cleaning agent was less than 2.0, and the antibacterial effect was not sufficient. Since Comparative Example 12 used protamine, it produced fish odor and was not suitable for use in the wet sheet of the present invention.
On the other hand, in Examples 1 to 6, by having the combination of the component (A) and the component (B), there was no annoying odor, and the antibacterial activity values 3.3 and 3 by the squeezing liquid were 3 and 3. The antibacterial effect was 0.5 times or more and 1.6 times or more of the standard 2.0.
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| JP2018228531A Active JP7270368B2 (en) | 2018-12-05 | 2018-12-05 | wet sheet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115778849A (en) * | 2022-12-19 | 2023-03-14 | 江苏百赛飞生物科技有限公司 | Antibacterial wet tissue capable of being used for cleaning hands and mouths of infants |
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| JPH11113780A (en) * | 1997-10-14 | 1999-04-27 | Asahi Chem Ind Co Ltd | Sterile wet tissue |
| JP2000239699A (en) * | 1999-02-22 | 2000-09-05 | Lion Corp | Cleaning sheet |
| JP2002233471A (en) * | 2001-02-09 | 2002-08-20 | Chisso Corp | Wet tissue |
| JP2003339567A (en) * | 2002-05-27 | 2003-12-02 | Asahi Kasei Corp | Wet tissue |
| JP2005000479A (en) * | 2003-06-13 | 2005-01-06 | Daio Paper Corp | Cleaning sheet |
| JP2007029264A (en) * | 2005-07-25 | 2007-02-08 | Asahi Kasei Chemicals Corp | Wet wiper |
| JP2018027916A (en) * | 2016-08-18 | 2018-02-22 | 株式会社Adeka | Bacteria removing sheet |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11113780A (en) * | 1997-10-14 | 1999-04-27 | Asahi Chem Ind Co Ltd | Sterile wet tissue |
| JP2000239699A (en) * | 1999-02-22 | 2000-09-05 | Lion Corp | Cleaning sheet |
| JP2002233471A (en) * | 2001-02-09 | 2002-08-20 | Chisso Corp | Wet tissue |
| JP2003339567A (en) * | 2002-05-27 | 2003-12-02 | Asahi Kasei Corp | Wet tissue |
| JP2005000479A (en) * | 2003-06-13 | 2005-01-06 | Daio Paper Corp | Cleaning sheet |
| JP2007029264A (en) * | 2005-07-25 | 2007-02-08 | Asahi Kasei Chemicals Corp | Wet wiper |
| JP2018027916A (en) * | 2016-08-18 | 2018-02-22 | 株式会社Adeka | Bacteria removing sheet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115778849A (en) * | 2022-12-19 | 2023-03-14 | 江苏百赛飞生物科技有限公司 | Antibacterial wet tissue capable of being used for cleaning hands and mouths of infants |
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| JP7270368B2 (en) | 2023-05-10 |
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