JP5457685B2 - Deodorant composition - Google Patents

Deodorant composition Download PDF

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JP5457685B2
JP5457685B2 JP2009014566A JP2009014566A JP5457685B2 JP 5457685 B2 JP5457685 B2 JP 5457685B2 JP 2009014566 A JP2009014566 A JP 2009014566A JP 2009014566 A JP2009014566 A JP 2009014566A JP 5457685 B2 JP5457685 B2 JP 5457685B2
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maleic anhydride
film
copolymer
deodorizing
anhydride copolymer
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JP2010167205A (en
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徹 岡田
達夫 石川
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有限会社岡田技研
株式会社猪川商店
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本発明は汚物や体臭等に原因する日常生活に身近な臭気の消臭、防臭に有効な消臭用組成物に関する。本発明によれば薄いフィルムでも高強度の防臭性のある袋が得られ、使用済みのオムツや汚物、ゴミなど悪臭源となる廃棄物を一時保管、運搬するのに適する。繊維やモノフィラメントにして衣類、特に靴下や下着として体臭防止をはかり得る。   The present invention relates to a deodorizing composition effective for deodorizing and deodorizing familiar odors caused by filth and body odor. According to the present invention, a bag having a high strength and deodorant property can be obtained even with a thin film, and it is suitable for temporarily storing and transporting waste odor sources such as used diapers, filth, and garbage. Fiber or monofilament can be used to prevent body odor as clothing, especially socks and underwear.

生活水準が向上するに伴い人々の環境衛生面に対する関心が高くなり、防臭、消臭が大きな課題となっている。一般的に悪臭を低減する方法としては、強力な芳香剤により臭気をマスキングする方法、活性炭、アルミナ、ゼオライト等の多孔質吸着剤による吸着などの物理的方法、触媒燃焼法、オゾンによる酸化法、化学薬品を用いた中和法などの化学的方法、あるいはバクテリアによる分解などの生物化学的方法等が知られている。   As the standard of living improves, people's interest in environmental hygiene has increased, and deodorization and deodorization have become major issues. In general, as a method of reducing malodor, a method of masking odor with a strong fragrance, a physical method such as adsorption with a porous adsorbent such as activated carbon, alumina, zeolite, a catalytic combustion method, an oxidation method with ozone, A chemical method such as a neutralization method using chemicals or a biochemical method such as decomposition by bacteria is known.

近年、家庭、病院、介護施設等において、乳児や要介護者のために使い捨てオムツや貸しオムツの使用が増加している。使用済みの使い捨てオムツは、スーパーのレジ袋などに入れて収集日までゴミ袋で保管されることが多い。また、貸オムツは、使用後、回収までの数日ポリエチレン製の袋などに入れて業者の回収を待つ必要がある。いずれもフィルムのガスバリヤー性が低く不快臭が外部に漏れ出る。また、台所からの生ゴミも同様に悪臭源となり得る。   In recent years, the use of disposable diapers and rental diapers for babies and care recipients is increasing in homes, hospitals, nursing care facilities, and the like. Used disposable diapers are often stored in garbage bags until they are collected in supermarket shopping bags. Moreover, it is necessary to wait for collection of the diaper by putting it in a polyethylene bag or the like for several days after use until collection. In either case, the gas barrier property of the film is low and unpleasant odors leak out. Similarly, kitchen garbage can be a source of bad odor.

また、人の発生する悪臭として、わきがや汗の臭い、靴下臭が問題とされることが多い。これら体臭の防止に関しては様々な対策が提案されており、靴下臭については靴の中敷きに吸着剤を用いたものや消臭スプレーなどが知られている。   In addition, as a bad odor generated by humans, there are many problems such as an awkward odor, sweat odor and sock odor. Various countermeasures have been proposed for preventing these body odors. As for the sock odor, there are known ones that use an adsorbent on the insole of shoes or a deodorizing spray.

特開2003−305111号公報JP 2003-305111 A

本発明の目的は、防臭性を有し薄いフィルムであっても強度が高く、使用済みオムツや生ゴミなど悪臭源となる廃棄物を処分するまでの一時保管、運搬において不快な臭いが漏れ出さないフィルム及びこれに用いる消臭用組成物を提供するものである。   The object of the present invention is that even a thin film having a deodorizing property has high strength, and unpleasant odors leak out during temporary storage and transportation until disposal of waste odors such as used diapers and garbage. And a deodorant composition used therefor.

本発明は、下記の成分(a)(b)及び(c):
(a)スチレン−無水マレイン酸共重合体及びメチルビニルエーテル−無水マレイン酸共重合体から選ばれた少なくとも1種の共重合体、
(b)エチレン−アクリル酸エステル−無水マレイン酸共重合体
(c)エチレン−酢酸ビニル共重合体
をポリオレフィン及び/又はナイロンに混合してなる消臭用組成物を提供する。
本発明の消臭用組成物には、更に脂肪酸金属塩又は脂肪酸アミドを混合するのが好ましい。また、本発明は、この消臭用組成物よりなるフィルム、繊維状物を提供するものである。
The present invention includes the following components (a) (b) and (c):
(a) a styrene - maleic anhydride copolymer及 beauty methyl vinyl ether - at least one copolymer selected from maleic anhydride copolymer,
(b) Ethylene-acrylic acid ester-maleic anhydride copolymer
(c) A deodorizing composition comprising an ethylene-vinyl acetate copolymer mixed with polyolefin and / or nylon is provided.
The deodorant composition of the present invention preferably further contains a fatty acid metal salt or a fatty acid amide. Moreover, this invention provides the film and fibrous material which consist of this composition for deodorizing.

本発明ではスチレン−無水マレイン酸共重合体等の消臭成分樹脂(a)に対して、エチレン−アクリル酸エステル−無水マレイン酸共重合体(b)及びエチレン−酢酸ビニル共重合体(c)を加えることによってベース樹脂に混合した場合に所望強度の薄いフィルムの成形が可能な消臭用樹脂組成物を得ることができた。これらの共重合体(b)及び(c)は、前記消臭成分樹脂である無水マレイン酸系共重合体(a)の溶解剤として作用していると推測される。従来、このように薄いフィルムで強度の高いポリオレフィン、ポリアミドの消臭性フィルムを量産し得る消臭性の樹脂組成物はなかった。   In the present invention, an ethylene-acrylic acid ester-maleic anhydride copolymer (b) and an ethylene-vinyl acetate copolymer (c) with respect to a deodorizing component resin (a) such as a styrene-maleic anhydride copolymer. It was possible to obtain a deodorant resin composition capable of forming a thin film having a desired strength when added to the base resin. These copolymers (b) and (c) are presumed to act as a solubilizer for the maleic anhydride copolymer (a), which is the deodorant component resin. Conventionally, there has been no deodorant resin composition capable of mass-producing such a thin film and a high-strength polyolefin / polyamide deodorant film.

(消臭性樹脂)
本発明に用いられる消臭成分としては、(a1)スチレン−無水マレイン酸共重合体、(a2)イソブチレン−無水マレイン酸共重合体及び(a3)メチルビニルエーテル−無水マレイン酸共重合体である。
(Deodorant resin)
Deodorant components used in the present invention are (a1) styrene-maleic anhydride copolymer, (a2) isobutylene-maleic anhydride copolymer, and (a3) methyl vinyl ether-maleic anhydride copolymer.

(a1)スチレン−無水マレイン酸共重合体としてはスチレンと無水マレイン酸との共重合比が2/1、若しくはこれより無水マレイン酸の割合が多い共重合体が好ましい。無水マレイン酸の割合がこれより少なくなると消臭効果が低下する。かかる共重合体の市販品としてはスチレン/無水マレイン酸比が1/1, 2/1, 3/1のタイプの共重合体があるがこれらのうち1/1のものが好ましく、共重合比が3/1の場合には消臭効果が少ない。本発明にて用いるスチレン−無水マレイン酸共重合体の平均分子量(重量)は1,000〜300,000、好ましくは5,000〜300,000である。   (a1) As the styrene-maleic anhydride copolymer, a copolymer having a copolymerization ratio of styrene and maleic anhydride of 2/1 or a higher proportion of maleic anhydride is preferable. When the proportion of maleic anhydride is less than this, the deodorizing effect is lowered. Commercially available products of such copolymers include copolymers with a styrene / maleic anhydride ratio of 1/1, 2/1, 3/1, of which 1/1 is preferred and the copolymer ratio In the case of 3/1, there is little deodorizing effect. The average molecular weight (weight) of the styrene-maleic anhydride copolymer used in the present invention is 1,000 to 300,000, preferably 5,000 to 300,000.

(a2)イソブチレン−無水マレイン酸共重合体としては、イソブチレンと無水マレイン酸との共重合比が2/1、若しくはこれより無水マレイン酸の割合が多い共重合体、より好ましくは共重合比が1/1、若しくはこれより無水マレイン酸の割合が多い共重合体が好ましい。無水マレイン酸の割合がこれより少なくなると消臭効果が低下する。本発明にて用いるイソブチレン−無水マレイン酸共重合体の平均分子量(重量)は10,000〜300,000、好ましくは10,000〜200,000である。   (a2) As the isobutylene-maleic anhydride copolymer, the copolymer ratio of isobutylene and maleic anhydride is 2/1, or a copolymer having a higher ratio of maleic anhydride than this, more preferably the copolymerization ratio is A copolymer having a ratio of 1/1 or more maleic anhydride is preferred. When the proportion of maleic anhydride is less than this, the deodorizing effect is lowered. The average molecular weight (weight) of the isobutylene-maleic anhydride copolymer used in the present invention is 10,000 to 300,000, preferably 10,000 to 200,000.

(a3)メチルビニルエーテル−無水マレイン酸共重合体としては、メチルビニルエーテルと無水マレイン酸との共重合比が2/1、若しくはこれより無水マレイン酸の割合が多い共重合体が用いられ、より好ましくは共重合比が1/1、若しくはこれより無水マレイン酸の割合が多い共重合体が用いられる。無水マレイン酸の割合がこれより少なくなると消臭効果が低下する。かかる共重合体の市販品としては、メチルビニルエーテル/無水マレイン酸比が1/1のものが好ましい。この共重合体の平均分子量(重量)は10,000〜1,000,000であり、好ましくは10,000〜300,000である。分子量がこれより大きいとポリオレフィンとの混合処理温度(180〜220℃)より共重合体の融点が高くなり好ましくない。   (a3) As the methyl vinyl ether-maleic anhydride copolymer, a copolymer having a copolymerization ratio of methyl vinyl ether and maleic anhydride of 2/1 or a higher proportion of maleic anhydride is more preferable. Is a copolymer having a copolymerization ratio of 1/1 or a higher proportion of maleic anhydride. When the proportion of maleic anhydride is less than this, the deodorizing effect is lowered. As a commercial product of such a copolymer, one having a methyl vinyl ether / maleic anhydride ratio of 1/1 is preferable. The average molecular weight (weight) of this copolymer is 10,000 to 1,000,000, preferably 10,000 to 300,000. When the molecular weight is larger than this, the melting point of the copolymer becomes higher than the mixing treatment temperature with polyolefin (180 to 220 ° C.), which is not preferable.

使用済みのオムツ入れ等に用いられるポリエチレン袋はフィムル厚さが20〜50μmと薄く、しかも内容物が相当重くフィルムはかなり大きな切断強度が必要である。従来、スチレン−無水マレイン酸共重合体をポリエチレン等のオレフィン系樹脂に配合してインフレーション法によりで30μm程度の薄いフィルムを押し出すと樹脂組成物は不均一な状態となりフィルム成形工程において切断などを生じ所望の強度のフィルムは得られなかった。これはスチレン−無水マレイン酸共重合体の無水マレイン酸部分がポリオレフィン樹脂に均一に溶解しがたいためと推測される。   A polyethylene bag used for a used diaper container has a thin film thickness of 20 to 50 μm, the content is considerably heavy, and the film needs a considerably high cutting strength. Conventionally, when a styrene-maleic anhydride copolymer is blended with an olefin resin such as polyethylene and a thin film of about 30 μm is extruded by an inflation method, the resin composition becomes inhomogeneous and causes cutting in the film forming process. A film having the desired strength was not obtained. This is presumably because the maleic anhydride portion of the styrene-maleic anhydride copolymer is difficult to dissolve uniformly in the polyolefin resin.

(配合割合)
前記共重合体の配合割合は、スチレン−無水マレイン酸共重合体など消臭成分である無水マレイン酸系共重合体(a1)〜(a3)の1重量部に対し、エチレン−アクリル酸エステル−無水マレイン酸共重合体(a2)0.1〜3.0重量部、好ましくは0.5〜1.5重量部である。また、エチレン−酢酸ビニル共重合体(a3)の配合量は、消臭成分である無水マレイン酸系共重合体(a1)〜(a3)の1重量部に対し、0.1〜5.0重量部、好ましくは0.3〜3.0重量部、より好ましくは0.5〜2.7重量部である。
なお、フィルム全体に対し、消臭成分である無水マレイン酸系共重合体(a1)〜(a3)の配合量は1〜4重量%である。
(Combination ratio)
The blending ratio of the copolymer is ethylene-acrylic acid ester-based on 1 part by weight of maleic anhydride copolymers (a1) to (a3) which are deodorizing components such as styrene-maleic anhydride copolymer. The maleic anhydride copolymer (a2) is 0.1 to 3.0 parts by weight, preferably 0.5 to 1.5 parts by weight. The blending amount of the ethylene-vinyl acetate copolymer (a3) is 0.1 to 5.0 with respect to 1 part by weight of the maleic anhydride copolymers (a1) to (a3) which are deodorizing components. Parts by weight, preferably 0.3 to 3.0 parts by weight, more preferably 0.5 to 2.7 parts by weight.
In addition, the compounding quantity of maleic anhydride type copolymer (a1)-(a3) which is a deodorizing component is 1-4 weight% with respect to the whole film.

(その他の成分)
日常生活で実際に問題となる身近な悪臭は単純ではなく、酸性臭気および塩基性臭気など種々の成分からなり、効果的な消臭にはこれらいずれの悪臭成分にも対応する必要がある。本発明の消臭用組成物において、硫化水素やメルカプタンなどの臭気に対する除去性能も併せ備えるには、前記樹脂成分にさらに脂肪酸金属塩を配合するのが好ましい。かかる脂肪酸金属塩としては、炭素数15以上の脂肪酸の金属塩が好ましく、たとえばステアリン酸亜鉛、ステアリン酸銅、ベヘン酸亜鉛、ステアリン酸銅などが好ましい。これら脂肪酸金属塩の配合量は本発明の組成物全体に対し、0.1〜3重量%、好ましくは0.2〜2重量%である。
また、脂肪酸アミドを前記脂肪酸金属塩1重量部に対して0.1〜1重量部、好ましくは0.2〜0.8重量部を配合することにより更に安定した消臭性能が得られる。
(Other ingredients)
Familiar odors that are actually a problem in daily life are not simple, and are composed of various components such as acidic odor and basic odor. For effective deodorization, it is necessary to cope with any of these odor components. In the deodorant composition of the present invention, it is preferable that a fatty acid metal salt is further blended with the resin component in order to provide removal performance against odors such as hydrogen sulfide and mercaptans. As such a fatty acid metal salt, a metal salt of a fatty acid having 15 or more carbon atoms is preferred, and for example, zinc stearate, copper stearate, zinc behenate, copper stearate and the like are preferred. The compounding amount of these fatty acid metal salts is 0.1 to 3% by weight, preferably 0.2 to 2% by weight, based on the entire composition of the present invention.
Further, by adding 0.1 to 1 part by weight, preferably 0.2 to 0.8 part by weight of the fatty acid amide with respect to 1 part by weight of the fatty acid metal salt, more stable deodorizing performance can be obtained.

このように前記共重合体と脂肪酸金属塩、脂肪酸アミドを併用することにより窒素系及びイオウ系の両方の臭気を確実に除去することができる。   Thus, by using the copolymer together with a fatty acid metal salt and a fatty acid amide, both nitrogenous and sulfurous odors can be reliably removed.

(ベース樹脂)
本発明の消臭用組成物において用いるベース樹脂としては、ポリエチレン、ポリプロピレンなどのオレフィン系樹脂、或いはナイロン−6などのポリアミド樹脂が好ましい。これらの樹脂を用いると脂肪酸塩がよく溶解し、金属成分が微細な状態でベース樹脂全体に分散し好ましい。
(Base resin)
The base resin used in the deodorant composition of the present invention is preferably an olefin resin such as polyethylene or polypropylene, or a polyamide resin such as nylon-6. When these resins are used, the fatty acid salt is well dissolved, and the metal component is preferably dispersed in the entire base resin in a fine state.

(消臭用組成物の用途)
本発明の消臭用組成物は使用にあたり種々成形して用い得る。特にシート、フィルム、或いは糸、モノフィラメントなどに形成するのが好ましく、Tダイ法、インフレーション法など公知の製法によりフィルム成形し、あるいは公知の紡糸方法により繊維、フィラメントを製造できる。本発明の消臭用組成物は、その表面積を増大させ消臭作用の向上をはかることができる。また、かかる繊維からなる糸、或いはモノフィラメントを単独で或いは他の繊維と混合して用い、防臭性下着などとしてもよい。
消臭性フィルムの厚さは10〜50μmが好ましい。このようなフィルムからなる袋に使用済みのオムツや汚物、或いはゴミなどを入れて密封すると、内容物から臭気原因物質がフィルムを透過する際にフィルム中の消臭成分により吸収され外部へ悪臭放出が防止できる。また、魚などの生ものを入れる袋などにも有用である。
(Use of deodorant composition)
The deodorant composition of the present invention can be used in various forms during use. In particular, it is preferably formed into a sheet, a film, a yarn, a monofilament, etc., and a fiber or a filament can be produced by a known method such as a T-die method or an inflation method, or by a known spinning method. The deodorizing composition of the present invention can increase the surface area and improve the deodorizing action. Moreover, it is good also as a deodorant underwear etc. using the thread | yarn consisting of this fiber, or a monofilament individually or in mixture with another fiber.
The thickness of the deodorant film is preferably 10 to 50 μm. When used diapers, filth, or garbage are sealed in a bag made of such a film, the odor-causing substance is absorbed by the deodorant component in the film when the odor-causing substance permeates through the film. Can be prevented. It is also useful for bags that contain raw food such as fish.

[実施例1]
スチレン−無水マレイン酸共重合体 1kg及びエチレン−アクリル酸エステル−無水マレイン酸共重合体
1kg及びエチレン−酢酸ビニル共重合体 2kg、更に低密度ポリエチレン 6kgをミキサーで完全に混合した。これら混合物をニーダー中にて210℃で溶融混合して中間体を作成した。かくして得られた中間体10kg及び低密度ポリエチレン40kgを200℃にて混合溶融しインフレーション法により成形して無色透明なフィルム(厚さ40μm)を得た。このフィルムを用い、つぎの脱臭テストを行った。
[Example 1]
1 kg of a styrene-maleic anhydride copolymer, 1 kg of an ethylene-acrylic ester-maleic anhydride copolymer, 2 kg of an ethylene-vinyl acetate copolymer, and 6 kg of low-density polyethylene were thoroughly mixed with a mixer. These mixtures were melted and mixed at 210 ° C. in a kneader to prepare intermediates. 10 kg of the intermediate product thus obtained and 40 kg of low density polyethylene were mixed and melted at 200 ° C. and molded by an inflation method to obtain a colorless and transparent film (thickness 40 μm). The following deodorization test was performed using this film.

(テスト方法)
前記フィルムを用い試験袋(10×10cm)を作成した。この試験袋にアンモニアガス(1,000ppm)50mlを封入し、この試験袋をさらにテトラパック容器(3リットル)に入れ密閉した。テトラパック内のガス濃度を所定の時間毎に測定し、試験袋より漏れ出るガス量を測定した。結果を表1及び表2に示す。
(Test method)
A test bag (10 × 10 cm) was prepared using the film. In this test bag, 50 ml of ammonia gas (1,000 ppm) was sealed, and this test bag was further sealed in a Tetra Pak container (3 liters). The gas concentration in the Tetra Pak was measured every predetermined time, and the amount of gas leaking from the test bag was measured. The results are shown in Tables 1 and 2.

[比較例1]
ブランクとして市販の通常のポリエチレン袋(厚さ40μm)を用いて同様の測定を行った。結果を表2に示す。
[Comparative Example 1]
The same measurement was performed using a commercially available ordinary polyethylene bag (thickness 40 μm) as a blank. The results are shown in Table 2.

Figure 0005457685
Figure 0005457685

[実施例2]
スチレン−無水マレイン酸共重合体0.8kg、エチレン−アクリル酸エステル−無水マレイン酸共重合体1kg、及びエチレン−酢酸ビニル2kg、並びにステアリン酸銅0.15kg、ベヘン酸 アマイド0.5kg、更に低密度ポリエチレン6kgをミキサーで完全に混合し 更にニーダーを用いて210℃にて溶融混合して中間体混合物を調製した。得られた中間体混合物10kgと低密度ポリエチレン10kgを実施例1と同じ200℃でインフレーション法によって無色透明なフィルム(厚さ40μm)を得た。このフィルムを用いて前記と同様の脱臭テストを行った。なお、メルカプタンについてもテスト袋中にガス濃度50ppmにて50mlを封入し、テトラパック容器(3リットル)に入れて前記と同様に所定時間毎にガス濃度を測定した。結果を表2に示す。
[Example 2]
0.8 kg of styrene-maleic anhydride copolymer, 1 kg of ethylene-acrylic acid ester-maleic anhydride copolymer, 2 kg of ethylene-vinyl acetate, 0.15 kg of copper stearate, 0.5 kg of behenic acid amide, lower 6 kg of density polyethylene was thoroughly mixed with a mixer, and further melt mixed at 210 ° C. using a kneader to prepare an intermediate mixture. A colorless and transparent film (thickness: 40 μm) was obtained from 10 kg of the obtained intermediate mixture and 10 kg of low-density polyethylene by the inflation method at 200 ° C. as in Example 1. The same deodorization test as described above was performed using this film. As for mercaptans, 50 ml of a gas bag with a gas concentration of 50 ppm was sealed in a test bag, placed in a tetrapack container (3 liters), and the gas concentration was measured every predetermined time in the same manner as described above. The results are shown in Table 2.

[実施例3]
ステアリン酸銅の代りにステアリン酸亜鉛を用いた以外は実施例2と同様にしてフィルムを成形した。このフィルムを用いて前記と同様の脱臭テストを行った。結果を表2に示す。
[Example 3]
A film was formed in the same manner as in Example 2 except that zinc stearate was used instead of copper stearate. The same deodorization test as described above was performed using this film. The results are shown in Table 2.

[実施例4]
実施例1において低密度ポリエチレンの代わりにポリプロピレンを用い、溶融温度を230℃としたこと以外は実施例1と同様にしてフィルムを成形した。このフィルムを用いて前記と同様の脱臭テストを行った。結果を表2に示す。
[Example 4]
A film was formed in the same manner as in Example 1 except that polypropylene was used instead of low density polyethylene in Example 1 and the melting temperature was 230 ° C. The same deodorization test as described above was performed using this film. The results are shown in Table 2.

[実施例5]
実施例2において、低密度ポリエチレンに代わりポリプロピレンを用い、溶融温度を230℃としたこと以外は実施例1と同様にしてフィルムの成形を行った。このフィルムを用いて前記と同様の脱臭テストを行った。結果を表2に示す。
[実施例6]
実施例3において、低密度ポリエチレンの代わりにナイロン−6を用いて中間体混合物を調製した。得られた中間体混合物10kgとナイロン−6、10kgを240℃にて溶融混合しTダイ法にてフィルムの成形を行った。このフィルムを用いて前記と同様の脱臭テストを行った。結果を表2に示す。
[Example 5]
In Example 2, a film was formed in the same manner as in Example 1 except that polypropylene was used instead of low density polyethylene and the melting temperature was 230 ° C. The same deodorization test as described above was performed using this film. The results are shown in Table 2.
[Example 6]
In Example 3, an intermediate mixture was prepared using nylon-6 instead of low density polyethylene. The obtained intermediate mixture (10 kg) and nylon-6 (10 kg) were melt mixed at 240 ° C., and a film was formed by the T-die method. The same deodorization test as described above was performed using this film. The results are shown in Table 2.

[参考例及び実施例7]
スチレン−無水マレイン酸共重合体の代わりに、イソブチレン−無水マレイン酸共重合体(参考例)または、メチルビニルエーテル−無水マレイン酸共重合体(実施例7)を用い、後記表2に示す原材料及び配合比にて実施例1と同様の処理を行い、インフレーション法により無色透明なフィルム(厚さ40μm)を製造した。このフィルムを用いて前記と同様の脱臭テストを行った。結果を表2に示す。
[ Reference Examples and Example 7 ]
Instead of the styrene-maleic anhydride copolymer, an isobutylene-maleic anhydride copolymer (reference example) or a methyl vinyl ether-maleic anhydride copolymer (Example 7) was used. The same treatment as in Example 1 was performed at the blending ratio, and a colorless and transparent film (thickness 40 μm) was produced by the inflation method. The same deodorization test as described above was performed using this film. The results are shown in Table 2.

[比較例2]
実施例1において、エチレン−アクリル酸エステル−無水マレイン酸共重合体及びエチレン−酢酸ビニル共重合体を用いず、表2の組成にて実施例1と同様にしてフィルムの製造を試みた。フィルムは切断が生じ安定な運転はできなかった。
[比較例3〜5及び参考比較例]
表2に示す成分及び配合量にて実施例1と同様にしてフィルムを製造した。消臭性能を測定した結果を表2に合わせて示す。
[Comparative Example 2]
In Example 1, an ethylene-acrylic acid ester-maleic anhydride copolymer and an ethylene-vinyl acetate copolymer were not used, and production of a film was attempted in the same manner as in Example 1 with the composition shown in Table 2. The film was cut and could not be operated stably.
[Comparative Examples 3 to 5 and Reference Comparative Example ]
A film was produced in the same manner as in Example 1 with the components and blending amounts shown in Table 2. The results of measuring the deodorizing performance are shown in Table 2.

Figure 0005457685
Figure 0005457685

(消臭の評価)
スチレン−無水マレイン酸共重合体などの消臭成分樹脂(a1)〜(a3)に対して、エチレン−アクリル酸エステル−無水マレイン酸共重合体(b)及びエチレン−酢酸ビニル共重合体(c)を混合することなく、単独でポリエチレンなどベースフィルムに練り込んで市販品と同様のフィルム(厚さ10〜50μm)の製造を試みると原料樹脂が完全には混合せず、フィルム成形中に切断を生じたり、フィルム表面にぶつぶつ(粒状物)を生じたりした(比較例2)。また、スチレン−無水マレイン酸共重合体など消臭性樹脂(a)と共に、(b)エチレン−アクリル酸エステル−無水マレイン酸共重合物体、及び(c)エチレン−酢酸ビニル共重合体の両共重合体を配合していない樹脂組成物では満足できる消臭効果が得られなかった(比較例3〜6)。
これに対して、実施例では長時間連続してフィルム成形を行っても厚さが均一で1000m以上のフィルムが安定して製造できた。
また、実際に使用済みのオムツを包んで24時間放置して持ち運んでも強度に問題はなく臭いが外部に漏れることもなかった。
(Evaluation of deodorization)
For the deodorant component resins (a1) to (a3) such as styrene-maleic anhydride copolymer, ethylene-acrylic acid ester-maleic anhydride copolymer (b) and ethylene-vinyl acetate copolymer (c ) Without mixing, when trying to manufacture a film (thickness 10 to 50 μm) similar to a commercial product by kneading it alone into a base film such as polyethylene, the raw resin does not mix completely and is cut during film formation Or crushing (granular material) on the film surface (Comparative Example 2). Further, both of (b) ethylene-acrylic acid ester-maleic anhydride copolymer and (c) ethylene-vinyl acetate copolymer together with a deodorizing resin (a) such as styrene-maleic anhydride copolymer. A satisfactory deodorizing effect could not be obtained with a resin composition containing no polymer (Comparative Examples 3 to 6).
On the other hand, in the Examples, even when film forming was performed continuously for a long time, a film having a uniform thickness and having a thickness of 1000 m or more could be stably produced.
Moreover, even if the used diaper was actually wrapped and left to carry for 24 hours, there was no problem in strength and no odor leaked to the outside.

Claims (5)

下記の成分(a)(b)及び(c):
(a)スチレン−無水マレイン酸共重合体及びメチルビニルエーテル−無水マレイン酸共重合体から選ばれた少なくとも1種の共重合体
(b)エチレン−アクリル酸エステル−無水マレイン酸共重合体
(c)エチレン−酢酸ビニル共重合体
をポリオレフィン及び/又はポリアミドに混合してなる消臭用組成物。
The following components (a) (b) and (c):
(a) a styrene - maleic anhydride copolymer及 beauty methyl vinyl ether - at least one copolymer selected from maleic anhydride copolymer
(b) Ethylene-acrylic acid ester-maleic anhydride copolymer
(c) A deodorizing composition comprising an ethylene-vinyl acetate copolymer mixed with polyolefin and / or polyamide.
更に脂肪酸金属塩及び/又は脂肪酸アミドを混合してなる請求項1の消臭用組成物。   Furthermore, the composition for deodorizing of Claim 1 formed by mixing a fatty acid metal salt and / or a fatty acid amide. 脂肪酸金属塩が亜鉛塩又は銅塩である請求項2の消臭用組成物。   The deodorizing composition according to claim 2, wherein the fatty acid metal salt is a zinc salt or a copper salt. 請求項1の消臭用組成物を用いた樹脂成形品。   A resin molded article using the deodorant composition according to claim 1. 樹脂成形品がフィルム、繊維又はモノフィラメントである請求項4の成形品。
The molded article according to claim 4, wherein the resin molded article is a film, fiber or monofilament.
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