JP2021023841A - Absorber - Google Patents
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- JP2021023841A JP2021023841A JP2019140949A JP2019140949A JP2021023841A JP 2021023841 A JP2021023841 A JP 2021023841A JP 2019140949 A JP2019140949 A JP 2019140949A JP 2019140949 A JP2019140949 A JP 2019140949A JP 2021023841 A JP2021023841 A JP 2021023841A
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- water
- pulp
- absorber
- highly absorbent
- absorbent polymer
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 32
- 239000002250 absorbent Substances 0.000 claims abstract description 52
- 230000002745 absorbent Effects 0.000 claims abstract description 50
- 229920000642 polymer Polymers 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 36
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 18
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000000123 paper Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 239000008399 tap water Substances 0.000 description 7
- 235000020679 tap water Nutrition 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 5
- 229920001131 Pulp (paper) Polymers 0.000 description 5
- 230000008673 vomiting Effects 0.000 description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 4
- 210000004916 vomit Anatomy 0.000 description 4
- 229920002125 Sokalan® Polymers 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000004584 polyacrylic acid Substances 0.000 description 3
- 244000007853 Sarothamnus scoparius Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- 240000000797 Hibiscus cannabinus Species 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 240000000907 Musa textilis Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920000805 Polyaspartic acid Polymers 0.000 description 1
- 108010020346 Polyglutamic Acid Chemical class 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical class O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 108010064470 polyaspartate Proteins 0.000 description 1
- 229920002643 polyglutamic acid Chemical class 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Abstract
Description
この発明は、迅速に水分を吸収することのできる吸収体に関する。 The present invention relates to an absorber capable of rapidly absorbing water.
泥酔者や体調不良者が嘔吐した際の嘔吐物の処理方法としては、おがくずで水分を吸収した後に、ほうき等で除去することが一般的に行われている。しかし、おがくずは吸水能力が低いため、嘔吐物の処理には大量のおがくずが必要であり、更には水（水分）の吸収に時間がかかる。そのため、特許文献１には、より吸水性の高い高吸水性ポリマーを用いた処理剤が提案されている。
ここで、飲食店内、駅構内、電車内等の公共の場では、臭い除去、感染防止等のために、嘔吐物をより迅速に処理することが求められている。
As a method for treating vomiting when a drunk person or a person with poor physical condition vomits, it is common practice to absorb water with sawdust and then remove it with a broom or the like. However, since sawdust has a low water absorption capacity, a large amount of sawdust is required to treat vomit, and it takes time to absorb water (moisture). Therefore, Patent Document 1 proposes a treatment agent using a super absorbent polymer having higher water absorption.
Here, in public places such as restaurants, train stations, and trains, it is required to treat vomit more quickly in order to remove odors and prevent infections.
本発明は、水分を迅速に吸収することのできる吸収体を提供することを課題とする。 An object of the present invention is to provide an absorber capable of rapidly absorbing water.
本発明の課題を解決する手段は、以下のとおりである。
１．少なくとも一面が水溶性シートからなる袋に、高吸収性ポリマーとパルプとを有する吸収材料が封入されていることを特徴とする吸収体。
２．前記高吸収性ポリマー１重量部に対して、前記パルプを１重量部以上１００重量部以下含有することを特徴とする１．に記載の吸収体。
３．前記水溶性シートが、ＣＭＣパルプを原料とした坪量２０ｇ/ｍ２以上１００ｇ/ｍ２以下のシートであることを特徴とする１．または２．に記載の吸収体。
The means for solving the problem of the present invention is as follows.
1. 1. An absorber characterized in that an absorbent material having a highly absorbent polymer and pulp is sealed in a bag having at least one surface made of a water-soluble sheet.
2. 2. 1. The pulp is contained in an amount of 1 part by weight or more and 100 parts by weight or less with respect to 1 part by weight of the highly absorbent polymer. Absorber described in.
3. 3. The water-soluble sheet is a sheet made from CMC pulp and having a basis weight of 20 g / m 2 or more and 100 g / m 2 or less. Or 2. Absorber described in.
本発明の吸収体は、少量の水分を吸収することで水溶性シートが崩壊するため、袋内部の吸収材料が素早く水と接触することができる。本発明で使用する吸収材料は、高吸収性ポリマーとパルプとを有することにより、高吸収性ポリマー単独の場合と比較して、迅速に水分を吸収することができる。 In the absorber of the present invention, the water-soluble sheet collapses by absorbing a small amount of water, so that the absorbent material inside the bag can quickly come into contact with water. Since the absorbent material used in the present invention has a highly absorbent polymer and pulp, it can absorb water more quickly than in the case of the highly absorbent polymer alone.
以下、本発明の実施の形態について説明する。
本発明の吸収体は、少なくとも一面が水溶性シートで作られた袋に、高吸収性ポリマーとパルプとを有する吸収材料が封入されている。
本発明の吸収体は、吸収材料が高吸収性ポリマーのみならずパルプを有することにより、迅速に水分を吸収することができる。これは、パルプが高吸収性ポリマーよりも水と馴染みやすいため、パルプを介することにより、水と高吸収性ポリマーとの接触効率が上がるため、および、高吸収性ポリマー同士の結着を抑制するためであると推測される。
Hereinafter, embodiments of the present invention will be described.
In the absorber of the present invention, an absorbent material having a highly absorbent polymer and pulp is sealed in a bag made of a water-soluble sheet on at least one side.
The absorber of the present invention can rapidly absorb water because the absorbent material has pulp as well as a highly absorbent polymer. This is because pulp is more compatible with water than high-absorptive polymers, and through pulp, the contact efficiency between water and high-absorbent polymers is improved, and binding between high-absorbent polymers is suppressed. It is presumed to be due to this.
本発明の吸収体の用途は限定されないが、例えば、嘔吐物、尿、便、ヘドロ、汚泥等の水分を多く含む処理物からの水分の吸収に好適に用いることができる。
また、本発明の吸収体は、その効果を損なわない範囲で、その用途に応じて、袋の内部に、他の吸水剤、吸油剤、吸着剤、殺菌剤、消臭剤、香料、着色剤等を封入することができる。
The use of the absorber of the present invention is not limited, but it can be suitably used for absorbing water from a treated product containing a large amount of water such as vomit, urine, stool, hedro, and sludge.
In addition, the absorber of the present invention has other water-absorbing agents, oil-absorbing agents, adsorbents, bactericides, deodorants, fragrances, and coloring agents inside the bag, as long as the effects are not impaired. Etc. can be enclosed.
本発明で使用する吸収材料は、高吸収性ポリマー１重量部に対してパルプを１重量部以上１００重量部以下含有することが好ましい。パルプの含有量が１重量部未満だと所望の吸水速度が得られない場合があり、パルプの含有量が１００重量部を超えると体積が大きくなり、また、吸水量が少なくなる場合がある。高吸収性ポリマー１重量部に対するパルプ含有量の下限としては２重量部以上がより好ましく、３重量部以上がさらに好ましく、５重量部以上が特に好ましい。また、このパルプ含有量の上限としては５０重量部以下がより好ましく、３０重量部以下がさらに好ましく、２０重量部以下が特に好ましい。
上記割合の高吸収性ポリマーとパルプを乾式混合器などで均一に混合し、少なくとも一面が水溶性シートで作られた袋に封入することにより、吸収体を製造することができる。
The absorbent material used in the present invention preferably contains 1 part by weight or more and 100 parts by weight or less of pulp with respect to 1 part by weight of the highly absorbent polymer. If the pulp content is less than 1 part by weight, the desired water absorption rate may not be obtained, and if the pulp content exceeds 100 parts by weight, the volume may increase and the water absorption amount may decrease. The lower limit of the pulp content with respect to 1 part by weight of the highly absorbent polymer is more preferably 2 parts by weight or more, further preferably 3 parts by weight or more, and particularly preferably 5 parts by weight or more. The upper limit of the pulp content is more preferably 50 parts by weight or less, further preferably 30 parts by weight or less, and particularly preferably 20 parts by weight or less.
An absorber can be produced by uniformly mixing the highly absorbent polymer and pulp in the above proportions with a dry mixer or the like and enclosing them in a bag having at least one surface made of a water-soluble sheet.
次に、本発明の吸収体で使用される各種材料を例示する。
本発明で使用するパルプは特に制限されず、針葉樹または広葉樹を原料とした機械パルプ、化学パルプなど木材由来のパルプ、亜麻パルプ、マニラ麻パルプ、ケナフパルプ等の非木材系パルプ、古紙パルプ等の製紙分野において用いられているパルプを用いることができる。これらの中で、安価でリグニン成分の少ない木材由来の化学パルプが好ましい。パルプは、繊維長が１μｍ以上２４μｍ以下であるものが好ましい。繊維長が２４μｍよりも長いと所望の吸水速度が発揮されない場合がある。繊維長が１μｍよりも短いと、袋に収容する時に舞い上がる等、取扱性が低下する場合がある。繊維長は、２μｍ以上１０μｍ以下であることがより好ましい。
また、本発明において、パルプは、ボールミル、アトライター、サンドグラインダー、マイクロカッタ−、ジェットミルなどの粉砕機によって粉砕して用いることもできる。この場合も、粉砕後の繊維長が１μｍ以上２４μｍ以下であるものが好ましい。
Next, various materials used in the absorber of the present invention will be illustrated.
The pulp used in the present invention is not particularly limited, and is a field of papermaking such as mechanical pulp made from softwood or broadleaf tree, wood-derived pulp such as chemical pulp, flax pulp, Manila hemp pulp, kenaf pulp and other non-wood pulp, and used paper pulp. The pulp used in the above can be used. Of these, wood-derived chemical pulp, which is inexpensive and has a low lignin component, is preferable. The pulp preferably has a fiber length of 1 μm or more and 24 μm or less. If the fiber length is longer than 24 μm, the desired water absorption rate may not be exhibited. If the fiber length is shorter than 1 μm, the handleability may deteriorate, such as flying up when stored in a bag. The fiber length is more preferably 2 μm or more and 10 μm or less.
Further, in the present invention, the pulp can be crushed and used by a crusher such as a ball mill, an attritor, a sand grinder, a microcutter, or a jet mill. Also in this case, the fiber length after pulverization is preferably 1 μm or more and 24 μm or less.
本明細書において、高吸収性ポリマーは下記のように定義される。
ポリマー１ｇをナイロン製の３００メッシュの濾布にこぼれないように包み、封をして重量を測定する。ビーカーに生理食塩水１００ｇを入れ、その中にポリマーを包んだ濾布を投入し、５分間放置する。濾布を取り出し、余分な生理食塩水を除去してから重量を測定し、前後の重量差から吸水量を求め、この吸水量が２０ｇ以上のものを高吸収性ポリマーと定義する。
In the present specification, a highly absorbent polymer is defined as follows.
Wrap 1 g of polymer in a nylon 300 mesh filter cloth so that it does not spill, seal it, and weigh it. Put 100 g of physiological saline in a beaker, put a filter cloth wrapped with a polymer in it, and leave it for 5 minutes. The filter cloth is taken out, excess physiological saline is removed, and then the weight is measured. The amount of water absorption is determined from the difference in weight between the front and the back, and a polymer having a water absorption of 20 g or more is defined as a highly absorbent polymer.
本発明で使用する高吸収性ポリマーとしては、具体的には、ポリアクリル酸およびその金属塩、ポリスルホン酸およびその金属塩、無水マレイン酸およびその金属塩、ポリアクリルアミド、ポリビニルアルコ−ル、ポリエチレンオキシド、ポリアスパラギン酸およびその金属塩、ポリグルタミン酸およびその金属塩、ポリアルギン酸およびその金属塩、澱粉など公知の高吸収性ポリマーを使用することができる。吸水性の観点からポリアクリル酸、ポリアクリル酸ナトリウムが好ましい。吸水速度を速めるため、１００μｍ程度まで粉砕することが好ましい。 Specific examples of the highly absorbent polymer used in the present invention include polyacrylic acid and its metal salt, polysulfonic acid and its metal salt, maleic anhydride and its metal salt, polyacrylamide, polyvinyl alcohol, and polyethylene oxide. , Polyaspartic acid and its metal salt, polyglutamic acid and its metal salt, polyargicic acid and its metal salt, starch and other known highly absorbent polymers can be used. From the viewpoint of water absorption, polyacrylic acid and sodium polyacrylate are preferable. In order to increase the water absorption rate, it is preferable to pulverize to about 100 μm.
高吸収性ポリマーの平均粒子径は、１０μｍ以上１０００μｍ以下であることが好ましい。下限としては、より好ましくは２０μｍ以上、さらに好ましくは４０μｍ以上である。上限としては、より好ましくは５００μｍ以下、さらに好ましくは３００μｍ以下である。吸水量は高吸収性ポリマーの比表面積に比例し、粒子径が細かいほど吸水量は多くなるが、一方で高吸収性ポリマーが凝集しやすくなる傾向がある。これに対し、本発明ではパルプを混合することで、高吸収性ポリマーの粒子径を小さくしても凝集が抑制され、吸水性を高めることができる。この理由は明らかではないが、高吸収性ポリマーは吸水速度が遅いため、水と接触すると表面が膨潤し、粘着性が生じる。そのため、高吸収性ポリマーが過密な状態で存在すると、高吸収性ポリマー同士で結着してしまい、吸収速度が急激に低下する。一方、本発明では、高吸収性ポリマーの間にパルプが存在するため、高吸収性ポリマー同士の結着を抑制することができると考えられる。なお、本発明における平均粒子径は、粒子を電子顕微鏡で撮影し、ランダムに選択した粒子１００個の最大径を測定し、それらの平均値を意味する。 The average particle size of the highly absorbent polymer is preferably 10 μm or more and 1000 μm or less. The lower limit is more preferably 20 μm or more, still more preferably 40 μm or more. The upper limit is more preferably 500 μm or less, still more preferably 300 μm or less. The amount of water absorption is proportional to the specific surface area of the highly absorbent polymer, and the smaller the particle size, the larger the amount of water absorption, but on the other hand, the highly absorbent polymer tends to aggregate easily. On the other hand, in the present invention, by mixing pulp, aggregation can be suppressed and water absorption can be enhanced even if the particle size of the highly absorbent polymer is reduced. The reason for this is not clear, but because of the slow water absorption rate of highly absorbent polymers, the surface swells and becomes sticky when in contact with water. Therefore, if the highly absorbent polymer exists in an overcrowded state, the highly absorbent polymer binds to each other, and the absorption rate drops sharply. On the other hand, in the present invention, since pulp is present between the highly absorbent polymers, it is considered that the binding between the highly absorbent polymers can be suppressed. The average particle size in the present invention means the average value of 100 randomly selected particles measured by photographing the particles with an electron microscope.
本明細書において、水溶性シートは下記のように定義される。
３×３ｃｍ２に切り出した試験片を作製し、２３℃×５０％で２時間以上調湿する。５００ｍｌ容ビーカーに水道水３００ｍｌを入れ、マグネチックスターラーで６５０ｒｐｍの速度で攪拌したところに、試験片を投入し、投入後１０秒未満で試験片が複数に分離するシートを水溶性シートと定義する。
In the present specification, the water-soluble sheet is defined as follows.
A test piece cut into 3 × 3 cm 2 is prepared, and the humidity is adjusted at 23 ° C. × 50% for 2 hours or more. A sheet in which 300 ml of tap water is placed in a 500 ml beaker and stirred with a magnetic stirrer at a speed of 650 rpm, the test piece is put in, and the test piece is separated into a plurality of test pieces within 10 seconds after the put in is defined as a water-soluble sheet. ..
本発明で使用する水溶性シートは、具体的には、オブラート、セロハン紙、カルボキシメチルセルロース（ＣＭＣ）パルプのシート、低叩解パルプのシート等が例示できる。これらの中で、溶解速度の観点からＣＭＣパルプからなるシートが好ましい。ＣＭＣパルプのシートとしては、たとえば日本製紙パピリア株式会社製の水溶紙シリーズとして入手可能である。 Specific examples of the water-soluble sheet used in the present invention include oblate, cellophane paper, carboxymethyl cellulose (CMC) pulp sheet, and low beating pulp sheet. Among these, a sheet made of CMC pulp is preferable from the viewpoint of dissolution rate. As a sheet of CMC pulp, for example, it is available as a water-soluble paper series manufactured by Nippon Paper Papylia Co., Ltd.
水溶性シートの坪量は２０ｇ/ｍ２以上１００ｇ/ｍ２以上が好ましく、３０ｇ/ｍ２以上８０ｇ/ｍ２以下がより好ましい。坪量が２０ｇ/ｍ２未満では使用前に袋が破損し、内容物が飛散する可能性がある。また、坪量が１００ｇ/ｍ２を超えると吸水時の溶解速度が遅くなるため、吸収材料が水分と接触するのが遅くなる場合がある。 The basis weight of the water-soluble sheet is preferably 20 g / m 2 or more and 100 g / m 2 or more, and more preferably 30 g / m 2 or more and 80 g / m 2 or less. If the basis weight is less than 20 g / m 2 , the bag may be damaged before use and the contents may scatter. Further, if the basis weight exceeds 100 g / m 2 , the dissolution rate at the time of water absorption becomes slow, so that the absorbent material may be slow to come into contact with water.
本発明で使用する袋は、少なくとも一面が水溶性シートで作られていればよく、他面は、非水溶性シート、水溶性シートのいずれも用いることができる。
非水溶性シートとしては、紙、高分子フィルム、不織布等を用いることができる。他面が非水溶性シートからなる吸収体は、使用後に非水溶性シートに包むようにして回収することができる。
他面が水溶性シートからなる吸収体は、袋の全体が崩壊することにより、使用後に、直接手で触れることなく、ほうき等で回収することができる。
The bag used in the present invention may be made of a water-soluble sheet on at least one side, and either a water-insoluble sheet or a water-soluble sheet can be used on the other side.
As the water-insoluble sheet, paper, polymer film, non-woven fabric and the like can be used. An absorber composed of a water-insoluble sheet on the other side can be recovered by wrapping it in a water-insoluble sheet after use.
The absorber made of a water-soluble sheet on the other side can be recovered with a broom or the like after use without directly touching it because the entire bag collapses.
本発明において、袋は、少なくとも１面が水溶性シートからなるように、２枚の水溶性シート、もしくは水溶性シートと非水溶性シートの４辺を貼り合わせる、または、１枚の水溶性シートを重なるように折り合わせて３辺を貼り合わせることにより、製造することができる。本発明において、シートの大きさは特に限定されないが、処理物を覆えるように面積が大きいことが好ましい。また、形状が規格化されていることから、２枚のシートを貼り合わせる場合はＡ０〜Ａ３サイズであることが好ましく、１枚のシートを折り合わせて貼り合わせる場合は、Ａ０〜Ａ２サイズであることが好ましい。 In the present invention, the bag is formed by sticking two water-soluble sheets or four sides of a water-soluble sheet and a water-insoluble sheet so that at least one side is composed of a water-soluble sheet, or one water-soluble sheet. Can be manufactured by folding the two sides so as to overlap each other and pasting the three sides together. In the present invention, the size of the sheet is not particularly limited, but it is preferable that the area is large so as to cover the processed material. Further, since the shape is standardized, it is preferably A0 to A3 size when two sheets are pasted together, and A0 to A2 size when one sheet is folded and pasted together. Is preferable.
以下、実施例にて本発明を例証するが本発明を限定することを意図するものではない。なお、各実施例及び比較例中、特にことわらない限り「部」は「重量部」、「％」は「重量％」を示す。 Hereinafter, the present invention will be illustrated in Examples, but it is not intended to limit the present invention. In each of the Examples and Comparative Examples, "parts" indicates "parts by weight" and "%" indicates "% by weight" unless otherwise specified.
［実施例１］
高吸収性ポリマーとパルプを下記配合で混合した。
高吸収性ポリマー（サンダイヤポリマー社製、商品名：アクアパール、
ポリアクリル酸とポリアクリル酸ナトリウムの混合物） ２ｇ
パルプ （丸紅紙パルプ販売社製、商品名：広葉樹晒しクラフトパルプ、
平均繊維長１．５ｍｍ） １８ｇ
[Example 1]
The highly absorbent polymer and pulp were mixed in the following formulation.
Highly absorbent polymer (manufactured by Sundia Polymer, trade name: Aquapearl,
Mixture of polyacrylic acid and sodium polyacrylate) 2 g
Pulp (manufactured by Marubeni Pulp & Paper Co., Ltd., trade name: hardwood bleached kraft pulp,
Average fiber length 1.5mm) 18g
高吸収性ポリマーをナノジェットマイザーミル（アイシンナノテクノロジー社製）を用いて粉砕した後、パルプと混合し、高速ブレンダー（アズワン社製）を用いて２０００ｒｐｍで１分間混合し、吸収材料を得た。なお、粉砕後の高吸収性ポリマーの平均粒子径は、９９μｍであった。 The highly absorbent polymer was pulverized using a nanojet mizer mill (manufactured by Aisin Nanotechnology), mixed with pulp, and mixed at 2000 rpm for 1 minute using a high-speed blender (manufactured by AS ONE) to obtain an absorbent material. .. The average particle size of the highly absorbent polymer after pulverization was 99 μm.
次いで、縦２９７ｍｍ×横２１０ｍｍの上質紙（Ａ４サイズ、坪量８０ｇ／ｍ２）の四辺にアクリル系接着剤を塗布し、上記で得られた吸収材料２０ｇを均一な厚さとなるように乗せた後、更に縦２９７ｍｍ×横２１０ｍｍのＣＭＣパルプのシート（日本製紙パピリア社製、商品名：水溶紙 ３０ＣＤ２）を乗せ、上質紙と水溶紙の四辺を貼り合わせて、一面が水溶性シートである吸収体を得た。 Next, acrylic adhesive was applied to the four sides of high-quality paper (A4 size, basis weight 80 g / m 2 ) having a length of 297 mm and a width of 210 mm, and 20 g of the absorbent material obtained above was placed on the four sides so as to have a uniform thickness. After that, a sheet of CMC pulp (manufactured by Nippon Paper Papylia Co., Ltd., trade name: water-soluble paper 30CD2) of 297 mm in length × 210 mm in width is placed, and the four sides of high-quality paper and water-soluble paper are bonded together, and one side is a water-soluble sheet. I got a body.
［実施例２］
高吸収性ポリマーを４ｇ、パルプを１６ｇ混合した吸収材料２０ｇとした以外は、実施例１と同様にして、吸収体を得た。
[Example 2]
An absorber was obtained in the same manner as in Example 1 except that the absorbent material was a mixture of 4 g of the highly absorbent polymer and 16 g of pulp.
［比較例１］
パルプを使用せず、高吸収性ポリマー２０ｇとした以外は、実施例１と同様にして、吸収体を得た。
［比較例２］
高吸収性ポリマーを使用せず、パルプ２０ｇとした以外は、実施例１と同様にして、吸収体を得た。
[Comparative Example 1]
An absorber was obtained in the same manner as in Example 1 except that 20 g of a highly absorbent polymer was used without using pulp.
[Comparative Example 2]
An absorber was obtained in the same manner as in Example 1 except that 20 g of pulp was used without using a highly absorbent polymer.
作製した吸収体について、下記評価を行った。
＜吸水性評価＞
３０ｃｍ×４０ｃｍの金属バットに常温の水道水１００ｍｌを入れ、吸収体の水溶性シート側を下にして、水道水に浸漬させた。３０秒後、金属バットを傾けて流出した水道水の量を測定し、以下の基準で吸水性を評価した。
○：流出した水道水が５ｍｌ未満
△：流出した水道水が５ｍｌ以上３０ｍｌ未満
×：流出した水道水が３０ｍｌ以上
The prepared absorber was evaluated as follows.
<Water absorption evaluation>
100 ml of tap water at room temperature was placed in a 30 cm × 40 cm metal bat and immersed in tap water with the water-soluble sheet side of the absorber facing down. After 30 seconds, the amount of tap water that flowed out was measured by tilting the metal vat, and the water absorption was evaluated according to the following criteria.
◯: Outflow tap water is less than 5 ml Δ: Outflow tap water is 5 ml or more and less than 30 ml ×: Outflow tap water is 30 ml or more
パルプのみを使用した比較例２の吸収体は、３０秒では水を吸収することができなかった。
高吸収性ポリマーのみを使用した比較例１の吸収体は、３０秒では全量を吸収することはできず、１００ｍｌのうち２５ｍｌの水が吸収されなかった。
本発明である実施例１、２の吸収体は、高吸収性ポリマーの量がそれぞれ２ｇ、４ｇと、比較例１の２０ｇと比較して少ないにもかかわらず、３０秒で１００ｍｌの水のほぼ全量を吸収することができた。
すなわち、本発明の吸収体は、短時間での吸水性に優れていることが確かめられた。
The absorber of Comparative Example 2 using only pulp could not absorb water in 30 seconds.
The absorber of Comparative Example 1 using only the highly absorbent polymer could not absorb the entire amount in 30 seconds, and 25 ml of 100 ml of water was not absorbed.
In the absorbers of Examples 1 and 2 of the present invention, although the amount of the highly absorbent polymer is 2 g and 4 g, respectively, which is smaller than that of 20 g of Comparative Example 1, almost 100 ml of water in 30 seconds is almost used. I was able to absorb the whole amount.
That is, it was confirmed that the absorber of the present invention is excellent in water absorption in a short time.
Claims (3)
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| JP2019140949A JP7346781B2 (en) | 2019-07-31 | 2019-07-31 | Absorber |
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| JP2003053183A (en) * | 2001-08-10 | 2003-02-25 | Pepaaretsuto Kk | Absorbing material for liquid-containing waste such as excreta or absorbing material for pathological waste |
| JP2004257151A (en) * | 2003-02-27 | 2004-09-16 | Sanyo Chem Ind Ltd | Sandbag substitute, and recovering and recycling method |
| JP2007038039A (en) * | 2005-07-29 | 2007-02-15 | Yamaha Motor Co Ltd | Liquid absorbing pack and liquid treatment apparatus using the same |
| JP2013212154A (en) * | 2012-03-30 | 2013-10-17 | Goto:Kk | Package body for absorbing and solidifying urine |
| JP2017159245A (en) * | 2016-03-10 | 2017-09-14 | 三洋化成工業株式会社 | Package for liquid waste disposal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10305227A (en) * | 1997-11-27 | 1998-11-17 | Nippon Shokubai Co Ltd | Separately wrapped body for treating waste blood and utilization |
| JP2000354760A (en) * | 1999-04-12 | 2000-12-26 | Kao Corp | Absorber and throw-away diaper |
| JP2002058998A (en) * | 2000-08-22 | 2002-02-26 | Sanyo Chem Ind Ltd | Method for recovering sand bag substute |
| JP2003053183A (en) * | 2001-08-10 | 2003-02-25 | Pepaaretsuto Kk | Absorbing material for liquid-containing waste such as excreta or absorbing material for pathological waste |
| JP2004257151A (en) * | 2003-02-27 | 2004-09-16 | Sanyo Chem Ind Ltd | Sandbag substitute, and recovering and recycling method |
| JP2007038039A (en) * | 2005-07-29 | 2007-02-15 | Yamaha Motor Co Ltd | Liquid absorbing pack and liquid treatment apparatus using the same |
| JP2013212154A (en) * | 2012-03-30 | 2013-10-17 | Goto:Kk | Package body for absorbing and solidifying urine |
| JP2017159245A (en) * | 2016-03-10 | 2017-09-14 | 三洋化成工業株式会社 | Package for liquid waste disposal |
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