JP6616764B2 - Wet wipe sheet - Google Patents
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- JP6616764B2 JP6616764B2 JP2016231935A JP2016231935A JP6616764B2 JP 6616764 B2 JP6616764 B2 JP 6616764B2 JP 2016231935 A JP2016231935 A JP 2016231935A JP 2016231935 A JP2016231935 A JP 2016231935A JP 6616764 B2 JP6616764 B2 JP 6616764B2
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- 239000000126 substance Substances 0.000 claims description 39
- 239000000835 fiber Substances 0.000 claims description 37
- 239000000243 solution Substances 0.000 claims description 31
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 19
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 19
- 239000004745 nonwoven fabric Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229920002678 cellulose Polymers 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 6
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 6
- 239000002121 nanofiber Substances 0.000 claims description 6
- 239000008155 medical solution Substances 0.000 claims description 3
- 239000010893 paper waste Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 13
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 229920001131 Pulp (paper) Polymers 0.000 description 8
- 229920000297 Rayon Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- -1 polybutylene terephthalate Polymers 0.000 description 5
- 239000002964 rayon Substances 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 239000008213 purified water Substances 0.000 description 4
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 4
- 235000010234 sodium benzoate Nutrition 0.000 description 4
- 239000004299 sodium benzoate Substances 0.000 description 4
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 3
- ZKHQWZAMYRWXGA-UHFFFAOYSA-N Adenosine triphosphate Natural products C1=NC=2C(N)=NC=NC=2N1C1OC(COP(O)(=O)OP(O)(=O)OP(O)(O)=O)C(O)C1O ZKHQWZAMYRWXGA-UHFFFAOYSA-N 0.000 description 3
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 3
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 229960000686 benzalkonium chloride Drugs 0.000 description 3
- CADWTSSKOVRVJC-UHFFFAOYSA-N benzyl(dimethyl)azanium;chloride Chemical compound [Cl-].C[NH+](C)CC1=CC=CC=C1 CADWTSSKOVRVJC-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 229960005323 phenoxyethanol Drugs 0.000 description 3
- 239000001509 sodium citrate Substances 0.000 description 3
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 3
- 229920003169 water-soluble polymer Polymers 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- MFXOZMLAABDPCP-UHFFFAOYSA-N C(CCC)NC(O)=O.C(C(C)I)I Chemical compound C(CCC)NC(O)=O.C(C(C)I)I MFXOZMLAABDPCP-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- ZKHQWZAMYRWXGA-KQYNXXCUSA-J ATP(4-) Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O)[C@@H](O)[C@H]1O ZKHQWZAMYRWXGA-KQYNXXCUSA-J 0.000 description 1
- BFEAVHUJZJRMMY-UHFFFAOYSA-N C(C(C)I)I.C(N)(OCCCC)=O Chemical compound C(C(C)I)I.C(N)(OCCCC)=O BFEAVHUJZJRMMY-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 240000008620 Fagopyrum esculentum Species 0.000 description 1
- 235000009419 Fagopyrum esculentum Nutrition 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 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 1
- 241000254158 Lampyridae Species 0.000 description 1
- 108060001084 Luciferase Proteins 0.000 description 1
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920002413 Polyhexanide Polymers 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- UREZNYTWGJKWBI-UHFFFAOYSA-M benzethonium chloride Chemical compound [Cl-].C1=CC(C(C)(C)CC(C)(C)C)=CC=C1OCCOCC[N+](C)(C)CC1=CC=CC=C1 UREZNYTWGJKWBI-UHFFFAOYSA-M 0.000 description 1
- 229960001950 benzethonium chloride Drugs 0.000 description 1
- LLSDKQJKOVVTOJ-UHFFFAOYSA-L calcium chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Ca+2] LLSDKQJKOVVTOJ-UHFFFAOYSA-L 0.000 description 1
- 229940052299 calcium chloride dihydrate Drugs 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229960001927 cetylpyridinium chloride Drugs 0.000 description 1
- YMKDRGPMQRFJGP-UHFFFAOYSA-M cetylpyridinium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 YMKDRGPMQRFJGP-UHFFFAOYSA-M 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 210000001724 microfibril Anatomy 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229960003885 sodium benzoate Drugs 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Sanitary Thin Papers (AREA)
Description
本発明は、特に赤ちゃんのお尻拭き、大人用の身体またはお尻拭き、その他の拭取りシートとして好適に使用できる湿潤拭取り用シートに関する。 The present invention particularly relates to a wet wipe sheet that can be suitably used as a baby wipe, an adult body or hip wipe, and other wipe sheets.
従来、赤ちゃん用お尻拭き等としては、種々の構造または成分の湿潤拭取り用シート（特許文献１、２参照）が提案されている。このような湿潤拭取り用シートにおいては、赤ちゃんの泥状の便を効率良く拭き取ることができるようになっていることが望ましい。 Conventionally, wet wiping sheets (see Patent Documents 1 and 2) having various structures or components have been proposed as baby butt wiping and the like. In such a wet wiping sheet, it is desirable that the baby's mud stool can be wiped off efficiently.
しかしながら、従来の湿潤拭取り用シートでは、赤ちゃんの泥状の便などの汚れを効率良く拭き取る性能が十分とは言えず、何度も拭き取りを繰り返す必要があった。 However, the conventional wet wiping sheet is not sufficient in efficiently wiping off dirt such as baby's mud stool, and it is necessary to repeat wiping many times.
本発明の課題は、薬液を含浸させた湿潤拭取り用シートにおいて、赤ちゃんの泥状の便などの汚れを拭き取る性能を向上させることである。 An object of the present invention is to improve the performance of wiping off dirt such as baby's mud stool in a wet wiping sheet impregnated with a chemical solution.
請求項１に記載の発明は、
不織布に対して薬液を含浸させてなる湿潤拭取り用シートにおいて、
前記薬液は、セルロースナノファイバーを含有していることを特徴とする。
The invention described in claim 1
In the wet wiping sheet formed by impregnating the non-woven fabric with the chemical solution,
The chemical solution contains cellulose nanofibers.
また、請求項２に記載の発明は、請求項１に記載の湿潤拭取り用シートにおいて、
前記薬液に、カルボキシメチルセルロースを含有していることを特徴とする。
The invention according to claim 2 is the wet wiping sheet according to claim 1,
The chemical solution contains carboxymethylcellulose.
また、請求項３に記載の発明は、請求項２に記載の湿潤拭取り用シートにおいて、
前記薬液は、水を９３．００〜９９．７９重量％、前記セルロースナノファイバーを０．００２〜０．０２重量％、及び前記カルボキシメチルセルロースを０．１０〜１．００重量％の割合で含有していることを特徴とする。
The invention according to claim 3 is the wet wiping sheet according to claim 2,
The chemical solution contains water at 93.00 to 99.79% by weight, the cellulose nanofibers at 0.002 to 0.02% by weight, and the carboxymethyl cellulose at a ratio of 0.10 to 1.00% by weight. It is characterized by.
また、請求項４に記載の発明は、請求項１〜３の何れか一項に記載の湿潤拭取り用シートにおいて、
前記不織布が、少なくとも親水性繊維を含んでいることを特徴とする。
Further, the invention according to claim 4 is the wet wiping sheet according to any one of claims 1 to 3,
The nonwoven fabric contains at least hydrophilic fibers.
本発明によれば、薬液を含浸させた湿潤拭取り用シートにおいて、赤ちゃんの泥状の便などの汚れを拭き取る性能を向上させることができる。 ADVANTAGE OF THE INVENTION According to this invention, in the wet wiping sheet impregnated with the chemical | medical solution, the performance which wipes off dirt, such as a baby's muddy stool, can be improved.
以下、本発明の実施の形態について詳述する。 Hereinafter, embodiments of the present invention will be described in detail.
＜湿潤拭取り用シート＞
本発明に係る湿潤拭取り用シートは、例えば不織布等のシート状の繊維集合基材に対して、精製水に各種成分を添加した薬液を含浸させたものである。
湿潤拭取り用シートは、製品形態では、複数枚積層された積層体の状態として、開閉蓋により密閉可能とされたシート取出口を有する密閉容器（例えば、特開２００８−１０５７４６号公報、特開２００７−１７６５４６号公報、特開２００７−１７６５４５号公報、特開２００７−１７６５４４号公報、特開２００６−３４１９０５号公報）や袋（例えば特開２００５−０８８９７０号公報）等の包装手段内に収容することができる。
使用に際しては、湿潤拭取り用シートを容器又は袋内に直に入れたもの、或いは湿潤拭取り用シートを直に入れた袋を容器内に入れたものから、使用者が取出口を開けて内部のシートを引き出して使用する。
かかる湿潤拭取り用シートは、例えば、赤ちゃん用のおしり拭きや身体拭きなど、人体の清掃用に用いられる。
<Wet wiping sheet>
The wet wiping sheet according to the present invention is obtained by impregnating a sheet-like fiber assembly base material such as a nonwoven fabric with chemicals obtained by adding various components to purified water.
In the form of a product, the wet wiping sheet is a hermetically sealed container having a sheet take-out port that can be hermetically sealed by an opening / closing lid as a laminated body in which a plurality of sheets are laminated (for example, Japanese Patent Laid-Open No. 2008-105746, Japanese Patent Laid-Open No. No. 2007-176546, JP-A 2007-176545, JP-A 2007-176544, JP-A 2006-341905) and bags (for example, JP-A-2005-088970) are accommodated in packaging means. be able to.
When using, the user can open the outlet from the wet wipe sheet placed directly in the container or bag, or the wet wipe sheet placed in the container. Pull out the inner sheet and use it.
Such a wet wiping sheet is used for cleaning the human body, such as baby wipes and body wipes.
＜繊維集合基材＞
繊維集合基材としては、所定の繊維を繊維素材として、例えば、スパンレース、エアスルー、エアレイド、ポイントボンド、スパンボンド、ニードルパンチ等の周知の技術により製造される不織布を用いることができる。
所定の繊維としては、天然、再生、合成を問わず用いることができるが、例えば、レーヨン、リヨセル、テンセル、コットン等のセルロース系繊維、ポリエチレン、ポリプロピレン、ポリビニルアルコール等のポリオレフィン系繊維、ポリエチレンテレフタレート、ポリブチレンテレフタレート等のポリエステル繊維、ナイロン等のポリアミド系繊維が挙げられる。これらは単独で、或いは２種以上を組み合わせて使用することができる。
本発明では少なくとも親水性繊維を含有するものが好ましい。本発明の薬液を用いた湿潤拭き取りシートは、親水性繊維を含んだ不織布のほうが親水性繊維を含まない不織布と比べて、泥状の便などの汚れの拭き取り効果が高いためである。
親水性繊維としては、綿、パルプなどの天然繊維、レーヨン、キュプラなどの再生繊維などを使用することができる。これらの繊維の中でも特にはレーヨンが好適である。レーヨンは、吸水性に富み、取り扱いが容易であると共に、一定長の繊維を安価に入手することができる。かかる親水性繊維は、基材中に４０〜７０重量％の含有比で配合するのがより望ましい。親水性繊維の含有量が４０重量％未満である場合には、十分な柔軟性と保水性を与えることが出来ず、７０重量％を超える場合には、湿潤時強度が低すぎて破れなどが生じ易くなるとともに、容器からポップアップ式で取り出す際に伸びが生じ過ぎるようになる。
本発明のシート状基材の場合、基材の目付け量は２０〜８０ｇ／ｍ２、特に３０〜６０ｇ／ｍ２程度であるのが好ましい。基材の目付け量が３０ｇ／ｍ２未満では汚れの保持能力が乏しくなり、６０ｇ／ｍ２を超えると柔軟性が乏しくなる。
<Fiber assembly base material>
As the fiber assembly base material, a predetermined fiber can be used as a fiber material, and for example, a nonwoven fabric manufactured by a well-known technique such as spun lace, air through, air laid, point bond, spun bond, needle punch, or the like can be used.
As the predetermined fiber, it can be used regardless of natural, regenerated, or synthetic. Examples thereof include polyester fibers such as polybutylene terephthalate, and polyamide fibers such as nylon. These can be used alone or in combination of two or more.
In the present invention, those containing at least hydrophilic fibers are preferred. This is because the wet wipe sheet using the chemical solution of the present invention has a higher effect of wiping off dirt such as mud stool in a non-woven fabric containing hydrophilic fibers than in a non-woven fabric containing no hydrophilic fibers.
Examples of hydrophilic fibers that can be used include natural fibers such as cotton and pulp, and regenerated fibers such as rayon and cupra. Among these fibers, rayon is particularly preferable. Rayon is rich in water absorption and is easy to handle, and a certain length of fiber can be obtained at low cost. It is more desirable to blend such hydrophilic fibers in the base material at a content ratio of 40 to 70% by weight. When the content of the hydrophilic fiber is less than 40% by weight, sufficient flexibility and water retention cannot be given, and when it exceeds 70% by weight, the strength when wet is too low, and the tearing is caused. In addition to being easily generated, it becomes excessively stretched when taken out from the container in a pop-up manner.
In the case of the sheet-like base material of the present invention, the basis weight of the base material is preferably 20 to 80 g / m 2 , particularly about 30 to 60 g / m 2 . When the basis weight of the base material is less than 30 g / m 2 , the dirt holding ability is poor, and when it exceeds 60 g / m 2 , the flexibility is poor.
＜薬液＞
薬液は、水（精製水）、セルロースナノファイバー（以下、ＣＮＦと称す）を含有しており、泥状の便の拭き取り性の高さの点から、薬液全体を１００．００重量％としたときに、ＣＮＦ２％水溶液を０．１０〜１．００重量％の割合で、すなわち、ＣＮＦを０．００２〜０．０２重量％含有していることが好ましい。
<Chemical solution>
The chemical solution contains water (purified water) and cellulose nanofiber (hereinafter referred to as CNF), and when the entire chemical solution is 100.00% by weight from the point of high wiping property of mud stool In addition, it is preferable that the CNF 2% aqueous solution is contained at a ratio of 0.10 to 1.00% by weight, that is, 0.002 to 0.02% by weight of CNF.
薬液には、ほかに、カルボキシメチルセルロース、ヒドロキシエチルセルロースなどの水溶性高分子、プロピレングリコール、ジプロピレングリコール、１，３−ブタンジオールなどの多価アルコール、塩化ベンゼトニウム、安息香酸ナトリウム、塩化セチルピリジニウム、及び塩酸ポリヘキサメチレンビグアニド等を含有することができるが、含有し得る成分はこれらに限定されない。 Other chemicals include water-soluble polymers such as carboxymethylcellulose and hydroxyethylcellulose, polyhydric alcohols such as propylene glycol, dipropylene glycol and 1,3-butanediol, benzethonium chloride, sodium benzoate, cetylpyridinium chloride, and Although polyhexamethylene biguanide hydrochloride etc. can be contained, the component which can be contained is not limited to these.
ＣＮＦは、水分を保持する特性を有し、且つ安全性が高い素材であって、パルプ繊維を解繊して得られる微細なセルロース繊維であり、一般的に繊維幅がナノサイズ（１ｎｍ以上、１０００ｎｍ以下）のセルロース微細繊維を含むセルロース繊維をいうが、平均繊維幅は、１００ｎｍ以下の微細繊維が好ましい。平均繊維幅の算出は、例えば、一定数の数平均、メジアン、モード径（最頻値）などを用いる。 CNF is a highly safe material that has the property of retaining moisture and is a fine cellulose fiber obtained by defibrating pulp fibers. Generally, the fiber width is nano-sized (1 nm or more, 1000 nm or less), and the average fiber width is preferably 100 nm or less. The average fiber width is calculated using, for example, a certain number average, median, mode diameter (mode), and the like.
ＣＮＦとして使用可能なパルプ繊維としては、例えば、広葉樹パルプ（ＬＢＫＰ）、針葉樹パルプ（ＮＢＫＰ）等の化学パルプ、晒サーモメカニカルパルプ（ＢＴＭＰ）、ストーングランドパルプ（ＳＧＰ）、加圧ストーングランドパルプ（ＰＧＷ）、リファイナーグランドパルプ（ＲＧＰ）、ケミグランドパルプ（ＣＧＰ）、サーモグランドパルプ（ＴＧＰ）、グランドパルプ（ＧＰ）、サーモメカニカルパルプ（ＴＭＰ）、ケミサーモメカニカルパルプ（ＣＴＭＰ）、リファイナーメカニカルパルプ（ＲＭＰ）等の機械パルプ、茶古紙、クラフト封筒古紙、雑誌古紙、新聞古紙、チラシ古紙、オフィス古紙、段ボール古紙、上白古紙、ケント古紙、模造古紙、地券古紙、更紙古紙等から製造される古紙パルプ、古紙パルプを脱墨処理した脱墨パルプ（ＤＩＰ）などが挙げられる。これらは、本発明の効果を損なわない限り、単独で用いてもよく、複数種を組み合わせて用いてもよい。 Examples of pulp fibers that can be used as CNF include chemical pulp such as hardwood pulp (LBKP) and softwood pulp (NBKP), bleached thermomechanical pulp (BTMP), stone grand pulp (SGP), and pressed stone grand pulp (PGW). ), Refiner Grand Pulp (RGP), Chemi Grand Pulp (CGP), Thermo Grand Pulp (TGP), Grand Pulp (GP), Thermo Mechanical Pulp (TMP), Chemi Thermo Mechanical Pulp (CTMP), Refiner Mechanical Pulp (RMP) Waste paper manufactured from mechanical pulp, tea waste paper, craft envelope waste paper, magazine waste paper, newspaper waste paper, flyer waste paper, office waste paper, corrugated waste paper, Kami white waste paper, Kent waste paper, imitation waste paper, local paper waste paper, waste paper waste paper, etc. Pulp and waste paper pulp were deinked Such as ink pulp (DIP), and the like. These may be used singly or may be used in combination of plural kinds as long as the effects of the present invention are not impaired.
ＣＮＦの製造に用いられる解繊方法としては、例えば、高圧ホモジナイザー法、マイクロフリュイダイザー法、グラインダー磨砕法、ビーズミル凍結粉砕法、超音波解繊法等の機械的手法が挙げられるが、これらの方法に限定されるものではない。
なお、上記解繊方法などにより機械的処理のみ施した（変性させていない）ＣＮＦ、即ち、官能基未修飾のＣＮＦは、リン酸基やカルボキシメチル基などの官能基修飾されたものに対し、熱安定性が高いため、より幅広い用途に使用可能であるが、リン酸基やカルボキシメチル基などの官能基修飾されたＣＮＦを本発明に使用することも可能である。
Examples of the defibrating method used for the production of CNF include mechanical methods such as a high-pressure homogenizer method, a microfluidizer method, a grinder grinding method, a bead mill freeze pulverizing method, and an ultrasonic defibrating method. It is not limited to.
In addition, CNF that has been subjected only to mechanical treatment by the defibration method or the like (not modified), that is, CNF that has not been modified with a functional group is modified with a functional group such as a phosphate group or a carboxymethyl group. Since it has high thermal stability, it can be used in a wider range of applications. However, CNF modified with a functional group such as a phosphate group or a carboxymethyl group can also be used in the present invention.
カルボキシメチルセルロース（以下、ＣＭＣと略す）は、ＣＮＦの薬液中での凝集を防止するために添加される水溶性高分子である。
ＣＮＦを水系溶媒に添加した場合、ＣＮＦのミクロフィブリル繊維同士が結合して凝集してしまうところ、ＣＭＣを添加してＣＮＦとＣＭＣを共存させることで、ＣＮＦのＯＨ基と、ＣＭＣのＯＨ基とが水素結合し、分子鎖の静電相互作用と立体障害効果によって、ＣＮＦの凝集が防止され、ＣＮＦを薬液中に均一に分散させることができる。
Carboxymethyl cellulose (hereinafter abbreviated as CMC) is a water-soluble polymer that is added to prevent aggregation of CNF in a chemical solution.
When CNF is added to an aqueous solvent, the CNF microfibril fibers are bonded and aggregated. By adding CMC and causing CNF and CMC to coexist, the OH group of CNF and the OH group of CMC Are bonded to each other by hydrogen, and the CNF aggregation is prevented by electrostatic interaction and steric hindrance effect of the molecular chain, so that CNF can be uniformly dispersed in the chemical solution.
なお、ＣＭＣは、セルロースを原料として得られ、緩やかな生分解性を有し、且つ使用後の焼却廃棄が可能であるため、環境に極めてやさしい素材であることから好ましく使用されるが、ＣＮＦの薬液中での凝集を防止できるものであれば、ＣＭＣ以外の水溶性高分子を用いることとしても良い。 CMC is preferably used because it is obtained from cellulose as a raw material, has moderate biodegradability, and can be incinerated and discarded after use. A water-soluble polymer other than CMC may be used as long as it can prevent aggregation in the chemical solution.
また、ＣＭＣを添加する場合には、薬液全体を１００．００重量％としたときに、薬液は、水を９３．００〜９９．７９重量％、ＣＮＦを０．００２〜０．０２重量％、及びＣＭＣを０．１０〜１．００重量％の割合で含有していることが好ましい。 In addition, when CMC is added, when the entire chemical solution is 100.00 wt%, the chemical solution is 93.00 to 99.79 wt% water, 0.002 to 0.02 wt% CNF, And CMC in a proportion of 0.10 to 1.00% by weight.
また、薬液は、繊維集合基材の乾燥重量に対して１００〜５００重量％の範囲内で含浸させることができるが、２００〜３５０重量％で含浸させることが好ましい。 Moreover, although a chemical | medical solution can be impregnated within the range of 100 to 500 weight% with respect to the dry weight of a fiber assembly base material, it is preferable to impregnate at 200 to 350 weight%.
以下、実施例により本発明を具体的に説明するが、本発明はこれらに限定されるものではない。 EXAMPLES Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto.
（１．サンプル作成）
繊維集合基材２種に対して、配合成分の異なる３種類の薬液をぞれぞれ含浸させ、実施例１、実施例２、実施例３、実施例４、比較例１、及び比較例２のサンプルとした。
各薬液は、繊維集合基材の乾燥重量に対して３００重量％で含浸させた。
(1. Sample creation)
Two kinds of fiber assembly base materials were impregnated with three kinds of chemicals having different blending components, and Example 1, Example 2, Example 3, Example 4, Comparative Example 1, and Comparative Example 2 were used. Samples of
Each chemical solution was impregnated at 300% by weight with respect to the dry weight of the fiber assembly base material.
＜繊維集合基材＞
繊維集合基材として、１３０ｍｍ×１８５ｍｍのサイズの、レーヨン、ポリエチレンテレフタレートの比が５０：５０である不織布（米坪：４５ｇ／ｍ２）、及び、ポリエチレンテレフタレート１００％である不織布（米坪：坪量が４５ｇ／ｍ２）を準備した。
<Fiber assembly base material>
As a fiber assembly base material, a nonwoven fabric having a size of 130 mm × 185 mm and a ratio of rayon and polyethylene terephthalate of 50:50 (US tsubo: 45 g / m 2 ) and a nonwoven fabric of 100% polyethylene terephthalate (US tsubo: tsubo An amount of 45 g / m 2 ) was prepared.
＜薬液＞
薬液Ａとして、水（精製水）９９．４９％に、安息香酸ナトリウム０．１２５％、フェノキシエタノール０．１％、塩化ベンザルコニウム０．１％、ＥＤＴＡ二ナトリウム０．０５％、クエン酸０．０２％、クエン酸ナトリウム０．０１％、プロピレングリコール０．１％、ブチルカルバミン酸ヨウ化プロビニル０．０００５％を加えた液を準備した。
<Chemical solution>
As chemical solution A, water (purified water) 99.49%, sodium benzoate 0.125%, phenoxyethanol 0.1%, benzalkonium chloride 0.1%, disodium EDTA 0.05%, citric acid 0. A liquid containing 02%, sodium citrate 0.01%, propylene glycol 0.1% and butyl carbamate propylene iodide 0.0005% was prepared.
薬液Ｂとして、水（精製水）９９．２６％に、ＣＮＦ２％懸濁液を０．２３％、及び、安息香酸ナトリウム０．１２５％、フェノキシエタノール０．１％、塩化ベンザルコニウム０．１％、ＥＤＴＡ二ナトリウム０．０５％、クエン酸０．０２％、クエン酸ナトリウム０．０１％、プロピレングリコール０．１％、ブチルカルバミン酸ヨウ化プロビニル０．０００５％を加えた液を準備した。
ここで使用したＣＮＦは、ＮＢＫＰ１００％のＣＮＦである。またＣＮＦの平均繊維幅（メジアン径）が４９ｎｍのＣＮＦを使用した。このＣＮＦは、ＮＢＫＰをリファイナー処理して粗解繊した後、高圧ホモジナイザーを用いて、４回処理して解繊することにより得られたものである。
なお、ＣＮＦの繊維幅（平均繊維幅）の測定方法は以下のとおりである。まず、固形分濃度０．０１〜０．１質量％のセルロースナノファイバーの水分散液１００ｍｌをテフロン（登録商標）製メンブレンフィルターでろ過し、エタノール１００ｍｌで１回、ｔ−ブタノール２０ｍｌで３回溶媒置換する。次に、凍結乾燥し、オスミウムコーティングして試料とする。この試料について、構成する繊維の幅に応じて５０００倍、１００００倍又は３００００倍のいずれかの倍率（本実施例では、３００００倍の倍率）で電子顕微鏡ＳＥＭ画像による観察を行う。具体的には、観察画像に二本の対角線を引き、対角線の交点を通過する直線を任意に三本引く。さらに、この三本の直線と交錯する合計１００本の繊維の幅を目視で計測する。そして、計測値の中位径（メジアン径）を平均繊維径とする。なお、計測値の中位径に限らず、例えば、数平均径や、モード径（最頻径）を平均繊維径としてもよい。
As chemical solution B, water (purified water) 99.26%, CNF 2% suspension 0.23%, sodium benzoate 0.125%, phenoxyethanol 0.1%, benzalkonium chloride 0.1% A solution was prepared by adding 0.05% disodium EDTA, 0.02% citric acid, 0.01% sodium citrate, 0.1% propylene glycol, and 0.0005% propylene iodide butylcarbamate.
CNF used here is CNF of NBKP 100%. CNF having an average fiber width (median diameter) of 49 nm was used. This CNF was obtained by subjecting NBKP to refiner treatment and rough defibrating, and then treating and defibrating four times using a high-pressure homogenizer.
In addition, the measuring method of the fiber width (average fiber width) of CNF is as follows. First, 100 ml of an aqueous dispersion of cellulose nanofibers having a solid content concentration of 0.01 to 0.1% by mass was filtered with a Teflon (registered trademark) membrane filter, and once with 100 ml of ethanol and three times with 20 ml of t-butanol. Replace. Next, the sample is freeze-dried and coated with osmium. This sample is observed by an electron microscope SEM image at a magnification of 5000 times, 10000 times, or 30000 times (in this example, a magnification of 30000 times) depending on the width of the constituent fibers. Specifically, two diagonal lines are drawn on the observation image, and three straight lines passing through the intersections of the diagonal lines are arbitrarily drawn. Further, the total width of 100 fibers intersecting with the three straight lines is visually measured. The median diameter (median diameter) of the measured value is taken as the average fiber diameter. In addition, it is good also considering not only the median diameter of a measured value but a number average diameter and a mode diameter (mode diameter) as an average fiber diameter, for example.
薬液Ｃとして、ＣＭＣナトリウム０．２３％、及び、ＣＮＦ２％懸濁液を０．２３％、安息香酸ナトリウム０．１２５％、フェノキシエタノール０．１％、塩化ベンザルコニウム０．１％、ＥＤＴＡ二ナトリウム０．０５％、クエン酸０．０２％、クエン酸ナトリウム０．０１％、プロピレングリコール０．１％、ブチルカルバミン酸ヨウ化プロビニル０．０００５％を加えた液を準備した。 As chemical solution C, 0.23% of CMC sodium and 0.23% of CNF 2% suspension, sodium benzoate 0.125%, phenoxyethanol 0.1%, benzalkonium chloride 0.1%, disodium EDTA A liquid was prepared by adding 0.05%, 0.02% citric acid, 0.01% sodium citrate, 0.1% propylene glycol, and 0.0005% propylene iodide butylcarbamate.
＜サンプル作成＞
実施例１、実施例２、比較例１は、レーヨン、ポリエチレンテレフタレートの比が５０：５０である不織布を用い、実施例１には薬液Ｂ（ＣＮＦ含有）を、実施例２には薬液Ｃ（ＣＮＦとＣＭＣ含有）を、比較例１には薬液Ａを、それぞれ３００％含侵させた。
実施例３、実施例４、比較例２は、ポリエチレンテレフタレート１００％である不織布を用い、実施例３には薬液Ｂ（ＣＮＦ含有）を、実施例４には薬液Ｃ（ＣＮＦとＣＭＣ含有）を、比較例２には薬液Ａを、それぞれ３００％含侵させた。
<Sample creation>
Example 1, Example 2, and Comparative Example 1 use a nonwoven fabric in which the ratio of rayon and polyethylene terephthalate is 50:50. In Example 1, chemical solution B (containing CNF) is used, and in Example 2, chemical solution C ( CNF and CMC were included), and Comparative Example 1 was impregnated with 300% of Chemical Solution A.
Example 3, Example 4, and Comparative Example 2 use a non-woven fabric that is 100% polyethylene terephthalate. In Example 3, chemical solution B (containing CNF) is used, and in Example 4, chemical solution C (containing CNF and CMC) is used. In Comparative Example 2, the chemical solution A was impregnated by 300%.
（泥状便の拭き取り性の確認）
実施例１〜４、比較例１〜２のサンプルを用いて、泥状便の拭き取り性を確認した。
なお、泥状便は、実際の泥状便を模したもので、そば粉１７７ｇ、との粉１７７ｇ、人工尿（組成；尿素２.０ｇ、塩化ナトリウム０.８ｇ、硫酸マグネシウム・６水和物０.０８ｇ、塩化カルシウム・２水和物０.０３ｇ、イオン交換水９７.０９ｇ）１４４６ｇ、ＣＭＣ５０ｇ、グリセリン１０％溶液４５０ｇ、界面活性剤（三洋化成株式会社製：ニューポール）０．５７ｇを混合したものであり、その粘度は１２０ｃＰｓとした。
実験は、タイルに、汚れとして、２００μｌの泥状便を垂らし、実施例１〜４、比較例１〜２のサンプルを用いて、それぞれの泥状便を拭き取った後、残った泥状便の量をルミテスター（キッコーマンバイオケミファ社：ホタルの発光酵素ルシフェラーゼを用い、全ての生物にエネルギー物質として含まれるＡＴＰ＜アデノシン三リン酸＞を微生物や汚れの指標として測定するＡＴＰ法）で測定した。
その結果は表Ｉに示す。
(Confirmation of wiping property of mud stool)
Using the samples of Examples 1 to 4 and Comparative Examples 1 to 2, the wiping property of mud stool was confirmed.
In addition, mud stool imitates actual mud stool, 177 g of buckwheat flour, 177 g of powder, artificial urine (composition: urea 2.0 g, sodium chloride 0.8 g, magnesium sulfate hexahydrate 0.08 g, calcium chloride dihydrate 0.03 g, ion-exchange water 97.09 g) 1446 g, CMC 50 g, glycerin 10% solution 450 g, and surfactant (manufactured by Sanyo Chemical Co., Ltd .: Newpol) 0.57 g The viscosity was 120 cPs.
In the experiment, 200 μl of mud stool was hung on the tile as dirt, and each mud stool was wiped off using the samples of Examples 1 to 4 and Comparative Examples 1 to 2, and then the remaining mud stool was removed. The amount was measured with a Lumi tester (Kikkoman Biochemifa: ATP method using ATP <adenosine triphosphate> contained as an energy substance in all living organisms as an indicator of microorganisms and dirt using firefly luminescent enzyme luciferase).
The results are shown in Table I.
表Ｉより、実施例１、実施例２のサンプルでは、比較例１のサンプルと比較して、残った泥状便の量が少ないことがわかる。また、実施例３、実施例４のサンプルでは、比較例２のサンプルと比較して、残った泥状便の量が少ないことがわかる。
さらに、実施例１のサンプルでは実施例２のサンプルと比較して、残った泥状便の量が非常に少なく、拭き取り性が極めて良好であることがわかる。同様に、実施例３のサンプルでは実施例４のサンプルと比較して、残った泥状便の量が約半分であり、拭き取り性が極めて良好であることがわかる。
From Table I, it can be seen that in the samples of Example 1 and Example 2, the amount of remaining mud stool is smaller than that of the sample of Comparative Example 1. It can also be seen that the samples of Example 3 and Example 4 have less mud stool remaining than the sample of Comparative Example 2.
Furthermore, it can be seen that the sample of Example 1 has a very small amount of remaining mud stool and the wiping property is very good as compared with the sample of Example 2. Similarly, in the sample of Example 3, the amount of remaining mud stool is about half that of the sample of Example 4, and it can be seen that the wiping property is very good.
以上のように、本実施の形態の湿潤拭取り用シートによれば、不織布に対して薬液を含浸させてなる湿潤拭取り用シートにおいて、ＣＮＦを含有した薬液を含侵させると湿潤拭取り用シートの汚れ（泥状便）の拭き取り効果を向上させることができる。また、薬液にＣＮＦとともにＣＭＣを含有させるとさらに湿潤拭取り用シートの汚れ（泥状便）の拭き取り効果を向上させることができる。 As described above, according to the wet wiping sheet of the present embodiment, the wet wiping sheet obtained by impregnating the non-woven fabric with the chemical liquid impregnates the chemical liquid containing CNF. The effect of wiping off dirt (mud stool) on the sheet can be improved. Moreover, when CMC is contained in the chemical liquid together with CNF, the wiping effect of dirt (mud stool) on the wet wiping sheet can be further improved.
なお、上記実施の形態においては、湿潤拭取り用シートは人体の清掃に用いられるものとして説明したが、その用途はこれに限定されるものではなく、人体以外の、例えば床等の清掃に用いられるものでも良い。また、拭取り用シートの用途に応じて、薬液に添加される成分が変更されるのは勿論である。 In the above embodiment, the wet wiping sheet has been described as being used for cleaning the human body, but its use is not limited to this, and it is used for cleaning, for example, floors other than the human body. It can be used. Of course, the component added to the chemical solution is changed according to the use of the wiping sheet.
Claims (4)
前記薬液は、セルロースナノファイバーを含有していることを特徴とする湿潤拭取り用シート。 In the wet wiping sheet formed by impregnating the non-woven fabric with the chemical solution,
The said chemical | medical solution contains the cellulose nanofiber, The sheet | seat for wet wiping characterized by the above-mentioned.
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| JP7139767B2 (en) * | 2018-08-07 | 2022-09-21 | 王子ホールディングス株式会社 | sanitary tissue paper |
| JP7008667B2 (en) * | 2019-07-18 | 2022-01-25 | 大王製紙株式会社 | Wiping sheet and manufacturing method of the wiping sheet |
| JP7474035B2 (en) * | 2019-08-30 | 2024-04-24 | 大王製紙株式会社 | Manufacturing method for wiping sheets |
| JP7341593B2 (en) * | 2019-09-25 | 2023-09-11 | 大王製紙株式会社 | Disposable wiping sheet and method for manufacturing disposable wiping sheet |
| JP7316894B2 (en) * | 2019-09-30 | 2023-07-28 | 大王製紙株式会社 | wet wipes for cleaning |
| JP7272945B2 (en) | 2019-12-25 | 2023-05-12 | ユニ・チャーム株式会社 | Use of absorbent articles, cleaning sheets, and wiping-enhancing compositions |
| JP7560090B2 (en) | 2020-01-25 | 2024-10-02 | 東北整練株式会社 | Method for treating regenerated cellulose fibers and treated regenerated cellulose fibers |
| JP7448380B2 (en) * | 2020-03-13 | 2024-03-12 | 大王製紙株式会社 | Wet sheet and method for manufacturing the wet sheet |
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| JPS58194811A (en) * | 1982-05-10 | 1983-11-12 | Daicel Chem Ind Ltd | Poultice material |
| JP3574318B2 (en) * | 1998-01-28 | 2004-10-06 | ユニ・チャーム株式会社 | Water dissolvable wet tissue |
| JP4468728B2 (en) * | 2004-04-09 | 2010-05-26 | 株式会社フクヨー | Cleaning sheet |
| US8377563B2 (en) * | 2008-03-31 | 2013-02-19 | Nippon Paper Industruies Co., Ltd. | Papermaking additive and paper containing the same |
| JP5342979B2 (en) * | 2009-09-30 | 2013-11-13 | 大王製紙株式会社 | Method for producing water-decomposable sheet and method for producing wiping sheet |
| CN103966896B (en) * | 2013-02-05 | 2016-05-18 | 金东纸业（江苏）股份有限公司 | Modified filler and preparation method thereof, applies its slurry and paper |
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