JPH03103473A - Antimicrobial and mildewproofing synthetic resin product - Google Patents
Antimicrobial and mildewproofing synthetic resin productInfo
- Publication number
- JPH03103473A JPH03103473A JP24321889A JP24321889A JPH03103473A JP H03103473 A JPH03103473 A JP H03103473A JP 24321889 A JP24321889 A JP 24321889A JP 24321889 A JP24321889 A JP 24321889A JP H03103473 A JPH03103473 A JP H03103473A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- synthetic resin
- antibacterial
- weight
- sdbs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 13
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 13
- 230000000845 anti-microbial effect Effects 0.000 title abstract 3
- 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 15
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 12
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims abstract description 6
- 230000000844 anti-bacterial effect Effects 0.000 claims description 22
- 229940121375 antifungal agent Drugs 0.000 claims description 14
- 230000000843 anti-fungal effect Effects 0.000 claims description 13
- 238000004898 kneading Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 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 claims 1
- KWKXNDCHNDYVRT-UHFFFAOYSA-N dodecylbenzene Chemical compound CCCCCCCCCCCCC1=CC=CC=C1 KWKXNDCHNDYVRT-UHFFFAOYSA-N 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims 1
- 229920005989 resin Polymers 0.000 abstract description 18
- 239000011347 resin Substances 0.000 abstract description 18
- 239000004594 Masterbatch (MB) Substances 0.000 abstract description 14
- 238000002156 mixing Methods 0.000 abstract description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 150000001336 alkenes Chemical class 0.000 abstract 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 abstract 1
- HFQQZARZPUDIFP-UHFFFAOYSA-M sodium;2-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HFQQZARZPUDIFP-UHFFFAOYSA-M 0.000 description 18
- 239000000843 powder Substances 0.000 description 11
- 239000007864 aqueous solution Substances 0.000 description 8
- 238000001746 injection moulding Methods 0.000 description 8
- 239000003429 antifungal agent Substances 0.000 description 7
- 239000003242 anti bacterial agent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- QIVUCLWGARAQIO-OLIXTKCUSA-N (3s)-n-[(3s,5s,6r)-6-methyl-2-oxo-1-(2,2,2-trifluoroethyl)-5-(2,3,6-trifluorophenyl)piperidin-3-yl]-2-oxospiro[1h-pyrrolo[2,3-b]pyridine-3,6'-5,7-dihydrocyclopenta[b]pyridine]-3'-carboxamide Chemical compound C1([C@H]2[C@H](N(C(=O)[C@@H](NC(=O)C=3C=C4C[C@]5(CC4=NC=3)C3=CC=CN=C3NC5=O)C2)CC(F)(F)F)C)=C(F)C=CC(F)=C1F QIVUCLWGARAQIO-OLIXTKCUSA-N 0.000 description 1
- 241000228245 Aspergillus niger Species 0.000 description 1
- 101100136092 Drosophila melanogaster peng gene Proteins 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000007977 PBT buffer Substances 0.000 description 1
- 235000002233 Penicillium roqueforti Nutrition 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 239000001965 potato dextrose agar Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 239000000271 synthetic detergent Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ドデシルベンゼンスルホン酸ナトリウム（以
下、単にｒｓＤＢｓＪという）を熱可塑性樹脂に添加し
て、防菌・防カビ性を付与した合成樹脂製品に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a synthetic resin that has antibacterial and antifungal properties by adding sodium dodecylbenzenesulfonate (hereinafter simply referred to as rsDBsJ) to a thermoplastic resin. Regarding the product.
従来より合成樹脂製品は，使用中あるいは輸送・保管中
の環境によって、カビや細菌などの微生物の影響を受け
やすく，製品の変質や劣化をきたし，また製品の外観や
物性が損われたり、更には悪臭を発生させたり、また人
体に悪影響を及ぼしたりすることが知られている．そこ
で，防菌・防カビ性を具備した合成樹脂製品の従来技術
としては，有機系若しくは無機系の防菌・防カビ剤を合
成樹脂に練り込み加工して得る製品と表面に塗布して得
る製品とが提供されている．
本発明は、このうち練り込み加工型の防菌・防カビ性合
或樹脂製品に属する．この技術に属する適応製品として
は，従来より，主に壁紙，床材，ビニルホース，電線被
覆，ガスケットなどの製品に利用されている．
〔発明が解決しようとする課題〕
しかし，従来の合成樹脂に用いられている有機系防菌・
防カビ剤は、農業や工業用防腐剤として開発されたもの
が多く，食品の容器・包装用途、日用品・家庭用品用途
などへの使用には，安全性の点で使用が制約されている
．また、これら有機系防菌・防カビ剤は、一般に耐熱性
が悪く，■．昇華や分解がしやすく、成形時の作業環境
が悪化し，薬剤のロスも大きい．■．変色しやすく，商
品価値を下げる．■．射出成形においては、金型の曇り
が発生したり，押出成形においては、ダイの周縁に焼け
た材料の溜るいわゆる目ヤニ現象が発生するなど、成形
加工性が悪い，などの欠点や問題点があった．従来用い
られている有機系防菌・防カビ剤の中で、特に耐熱性の
良いとされているＴＢＺ（チアベンズイミダゾール）と
，ＳＤＢＳとの示差熱分析の結果を比較すると、ＴＢＺ
が２３０℃から重量減少が起こり、３５０℃では、ほと
んど昇華するのに対し，ＳＤＢＳは、３００℃までほと
んど重量減少がなく、抜群の耐熱性を有することがわか
る．
一方、無機系防菌・防カビ剤では、安全性は高いとされ
ているが、耐熱性・耐候性が悪く，著しく変色を起こし
、また高価であるという欠点があった。Traditionally, synthetic resin products have been susceptible to the effects of microorganisms such as mold and bacteria depending on the environment during use, transportation, and storage, which can cause deterioration and deterioration of the product, as well as damage to the appearance and physical properties of the product. It is known that it produces a bad odor and has a negative effect on the human body. Therefore, the conventional technologies for synthetic resin products with antibacterial and antifungal properties include products obtained by kneading organic or inorganic antibacterial and antifungal agents into synthetic resins, and products obtained by applying them to the surface. products are provided. The present invention belongs to the kneaded type of antibacterial and antifungal resin products. Adaptable products that belong to this technology have traditionally been mainly used in products such as wallpaper, flooring, vinyl hoses, electric wire coverings, and gaskets. [Problem to be solved by the invention] However, the organic antibacterial and antibacterial methods used in conventional synthetic resins
Most antifungal agents were developed as preservatives for agriculture and industry, and their use in food containers and packaging, daily necessities, and household goods is restricted due to safety concerns. In addition, these organic antibacterial and antifungal agents generally have poor heat resistance; It easily sublimes and decomposes, creating a poor working environment during molding and causing large chemical losses. ■． Easily discolored and reduces product value. ■． Injection molding has drawbacks and problems such as clouding of the mold, and extrusion molding has poor molding processability, such as the so-called "eye stain" phenomenon in which burnt material accumulates around the periphery of the die. there were. Comparing the results of differential thermal analysis between TBZ (thiabenzimidazole), which is said to have particularly good heat resistance among conventionally used organic antibacterial and antifungal agents, and SDBS, it is found that TBZ
However, SDBS shows almost no weight loss up to 300°C, indicating that it has excellent heat resistance. On the other hand, inorganic antibacterial and antifungal agents are said to be highly safe, but they have the drawbacks of poor heat resistance and weather resistance, significant discoloration, and high prices.
本発明は、上記したこれらの従来技術の有した欠点・問
題点をすべて解決するもので、従来、各方面で防菌・防
カビ性合或樹脂製品のニーズが高まっているにも係らず
、一部の用途でしか実用化されていなかった現実に鑑み
、広範囲の用途を対象とし，且つ高い安全性を有し，し
かも耐熱性・耐候性に優れた安価な防菌・防カビ性合戒
樹脂製品を提供することを目的とするものである．
〔課題を解決するための手段〕
本発明は，従来、界面活性剤として、家庭用合成洗剤や
工業用洗浄剤などに使用されてぃるＳＤＢＳを防菌・防
カビ剤として、熱可塑性樹脂に添加することを特徴とす
る．
ＳＤＢＳは、粉末と水溶液（有効成分４０〜６５％）の
２形態で市販されており、どちらのタイプでの使用も可
能であるが、粉末タイプは高価であり、水溶液のタイプ
が一般的である。The present invention solves all the drawbacks and problems of the above-mentioned conventional technologies, and despite the increasing need for antibacterial and antifungal synthetic resin products in various fields, In view of the fact that it has only been put into practical use for a limited number of applications, we have developed an inexpensive antibacterial and antifungal product that is highly safe, has excellent heat resistance and weather resistance, and is intended for a wide range of applications. The purpose is to provide resin products. [Means for Solving the Problems] The present invention uses SDBS, which has conventionally been used as a surfactant in household synthetic detergents and industrial cleaning agents, as an antibacterial and antifungal agent for thermoplastic resins. It is characterized by the addition of SDBS is commercially available in two forms: powder and aqueous solution (40-65% active ingredient), and both types can be used, but the powder type is expensive and the aqueous solution type is common. .
ＳＤＢＳの添加量は，用途にもよるが，熱可塑性樹脂１
００重量部に対して，０．１〜５重量部程度が望ましい
．また、クエン酸を併用することにより，防菌・防カビ
効力を持続させることができる．クエン酸の添加量は．
０．０５〜２．５重量部程度が望ましい．
次に、本発明において使用できる熱可塑性樹脂としては
，塩化ビニル樹脂，ＰＥ （ＬＤＰＥ，ＬＬＤＰＥ，Ｈ
ＤＰＥ）−ＰＰ−ＥＶＡなどのオレフィン系樹脂、ＰＳ
−ＡＳ−ＡＢＳなどのスチレン系樹脂、ＰＥＴ樹脂、ポ
リアセタール・ナイロン・ポリカーボネイト・ＰＢＴな
どのエンジニアリング樹脂などの樹脂が使用できる．次
に，ＳＤＢＳを熱可塑性樹脂に添加する方法であるが，
直接ブレンドする場合は別として、あらかじめＳＤＢＳ
を熱可塑性樹脂に練り込む場合には、作業性・経済性及
び水分除去の点から、車軸若しくは二軸押出機によりマ
スターバッチ化することが望ましい。以下に，その具体
的な方法を例示する．
〈方法一ｌ〉
粉末タイプのＳＤＢＳのマスターバッチ化に際しては、
水分の吸収による粉末のべとつきを防止するために，微
粒子の滑剤などにて処理するのが望ましい．処理された
ＳＤＢＳの粉末は、それぞれの熱可塑性樹脂に適正な温
度条件にて押出加工を行う．
く方法−２〉
水溶液タイプのＳＤＢＳのマスターバッチ化に際しては
，出来るだけ高濃度の水溶液の使用が好ましい。ミキサ
ーにて攪拌しながら、１ｏＯ℃付近まで昇温させた熱可
塑性樹脂のパウダーまたはペレットにＳＤＢＳの水溶液
を投下し、混合すると共に水分を蒸発させた後、それぞ
れの樹脂に適正な温度条件にて押出加工を行う。The amount of SDBS added depends on the application, but the amount of SDBS added is 1
0.00 parts by weight, preferably about 0.1 to 5 parts by weight. In addition, by using citric acid in combination, the antibacterial and antifungal effects can be sustained. What is the amount of citric acid added?
Approximately 0.05 to 2.5 parts by weight is desirable. Next, as thermoplastic resins that can be used in the present invention, vinyl chloride resin, PE (LDPE, LLDPE, H
Olefin resins such as DPE)-PP-EVA, PS
- Resins such as styrene resins such as AS-ABS, PET resins, and engineering resins such as polyacetal, nylon, polycarbonate, and PBT can be used. Next, there is a method of adding SDBS to thermoplastic resin.
Unless you are directly blending, please prepare SDBS in advance.
When kneading into a thermoplastic resin, it is desirable to form a masterbatch using an axle or twin-screw extruder from the viewpoints of workability, economy, and water removal. The following is an example of a specific method. <Method 1> When making a masterbatch of powder type SDBS,
To prevent the powder from becoming sticky due to moisture absorption, it is desirable to treat it with a fine particle lubricant. The treated SDBS powder is extruded into the respective thermoplastic resins under appropriate temperature conditions. Method-2> When preparing an aqueous solution type SDBS masterbatch, it is preferable to use an aqueous solution as highly concentrated as possible. While stirring with a mixer, drop an aqueous solution of SDBS onto thermoplastic resin powder or pellets heated to around 100°C, mix and evaporate water, then heat under appropriate temperature conditions for each resin. Perform extrusion processing.
〈方法−３〉
比較的濃度の低いＳＤＢＳ水溶液のマスターバッチ化に
際しては、スプレードライヤーにて乾燥処理後、く方法
−１〉の要領にて加工を行う．
このように製造されたマスターバッチと、対象となる熱
可塑性樹脂を適当量混合して、適当な成形加工方法、た
とえば射出成形・インフレーション成形・Ｔ−ダイ成形
・ブロー成形・カレンダー成形などによって、防菌・防
カビ性合或樹脂製品が製造されるのである．
〔実施例〕
本発明は、従来提供されている防菌・防カビ性合或樹脂
製品に応用することはもとより実用化し得なかった，あ
るいは実用化の困難であった製品を提供し得るものであ
る．
以下、このような特徴を有する本発明に係る防菌・防カ
ビ性合或樹脂製品の実施例を具体的に示す。<Method-3> When making a masterbatch from an SDBS aqueous solution with a relatively low concentration, process it as described in Method-1 after drying with a spray dryer. The thus produced masterbatch and the target thermoplastic resin are mixed in an appropriate amount and subjected to a suitable molding process such as injection molding, inflation molding, T-die molding, blow molding, calendar molding, etc. Bacteria and mold resistant synthetic resin products are manufactured. [Example] The present invention can be applied to conventionally provided antibacterial and antifungal synthetic resin products, and can also provide products that could not be put into practical use or were difficult to put into practical use. be. Examples of antibacterial and antifungal resin products according to the present invention having such characteristics will be specifically shown below.
く実施例一ｌ〉
ＰＰ樹脂パウダー７４重量部とポリエチレンワックス２
０重量部をミキサーに投入し、攪拌しながら１００℃ま
で昇温する．次に，ＳＤＢ５６５％水溶液を９．３重量
部を投下して５分間攪拌する．こうして処理した材料を
車軸押出機を用い、２２０℃の加工温度で押出加工を行
い、ＳＤＢＳ６％のマスターバッチを製造した．ＰＰ樹
脂９５重量部に、ＳＤＢ５６％マスターバッチを５重量
部加えて混合後、射出成形機にて，加工温度２８０℃の
条件で、防菌・防カビ効果の優れた全自動洗濯機の水槽
を成形する事が出来た．
く実施例−２〉
ＡＳ樹脂パウダー８０重量部に、ＳＤＢＳパ．ウダーｌ
５重量部とクエン酸５重量部とを加え，ミキサーで攪拌
後，二軸押出機を用い、加工温度２１０℃にて押出加工
を行い、ＳＤＲＳ １ ５％のマスターバッチを製造し
た．ＡＳ樹脂（ガラス繊維強化グレード）９７重量部に
．ＳＤＢＳ１５％マスターバッチを３重量部を加えて混
合後、射出成形機にて、加工温度２４０℃の条件で、防
菌・防カビ効果の著しいエアコンのファンを成形する事
が出来た．
く実施例−３〉
ＡＢＳ樹脂パウダー８１重量部と流動パラフィン９重量
部とを、ミキサーに投入し，攪拌しながら１００℃まで
昇温する．次に，ＳＤＲ８６５％水溶液１５．４重量部
を投下して１ｏ分間攪拌する．こうして処理した材料を
単軸押出機を用い、加工温度を２３０℃にて押出加工を
行い．ＳＤＢ８１０％にて押出加工を行い、ＳＤＢ５
１ ０％のマスターバッチを製造した。ＡＢＳ樹脂９７
重量部に，ＳＤＢＳＩＯ％マスターバッチを３重量部を
加えて混合後、−押出機にて、加工温度２６０℃の条件
で、シートを成形し、更にそのシートを真空戒形するこ
とにより、防菌・防カビ効果の優れた冷蔵庫の内装部の
製品を得た。Example 1> 74 parts by weight of PP resin powder and 2 parts of polyethylene wax
Add 0 parts by weight to a mixer and raise the temperature to 100°C while stirring. Next, add 9.3 parts by weight of SDB565% aqueous solution and stir for 5 minutes. The thus treated material was extruded using an axle extruder at a processing temperature of 220°C to produce a masterbatch containing 6% SDBS. Add 5 parts by weight of SDB 56% masterbatch to 95 parts by weight of PP resin, mix, and then use an injection molding machine at a processing temperature of 280°C to wash the water tank of a fully automatic washing machine with excellent antibacterial and antifungal effects. I was able to mold it. Example 2> 80 parts by weight of AS resin powder was added with SDBS resin powder. Uda l
After adding 5 parts by weight and 5 parts by weight of citric acid and stirring with a mixer, extrusion processing was performed using a twin-screw extruder at a processing temperature of 210°C to produce a masterbatch containing 15% SDRS. 97 parts by weight of AS resin (glass fiber reinforced grade). After adding and mixing 3 parts by weight of SDBS 15% masterbatch, we were able to mold an air conditioner fan with remarkable antibacterial and antifungal effects using an injection molding machine at a processing temperature of 240°C. Example 3 81 parts by weight of ABS resin powder and 9 parts by weight of liquid paraffin were placed in a mixer and heated to 100°C while stirring. Next, 15.4 parts by weight of SDR 865% aqueous solution was added and stirred for 10 minutes. The thus treated material was extruded using a single screw extruder at a processing temperature of 230°C. Extrusion processing is performed at SDB810%, SDB5
A 10% masterbatch was produced. ABS resin 97
After adding and mixing 3 parts by weight of SDBSIO% masterbatch to the parts by weight, molding the sheet into a sheet using an extruder at a processing temperature of 260°C, and further forming the sheet in a vacuum, makes it antibacterial. - Obtained a product for the interior of refrigerators that has excellent anti-mold effects.
〈実施例−４〉
ＰＰ樹脂９９．７重量部に．ＳＤＢＳパウダーを０．３
重量部を混合し，射出威形機にて、加工温度２５０℃の
条件で、キッチン用品のカゴやザルを成形した．
有用性を具体的に試験例により示す．
く試験例−１〉
実施例−１および３に準じて得たマスターバッチを用い
，射出戊形にて試験プレート（５０Ｘ８０．厚み３＋ｓ
ｍ）を作成し、直径１４鵬閣の大きさの試験用平板とし
，バクテリアに対するハロー効果の試験を行った．
直径９０ｍｍで、高さ２０ｍｍの大きさのシャーレに入
れたブイヨン寒天培地に、大腸菌（ Ｅｓｃｈｅｒｉｃ
ｈｉａ ｃｏｌｉ）および黄色ブドウ状球菌（Ｓｔ．ａ
ｐｈｙｌｏｃｏｃｃｕｓ ａｕｒｅｕｓ）をそれぞれ接
種した．そして、上記により得た試験用平板を培地上に
ならべ、２７℃で４８時間培養した．その後，試験用平
板周辺の阻止円の直径を測定し，防菌活性を求めた．
その結果は，第１表に示したとおりであった．！ バ
クテ曹アに る の きさ単位（開）
次に本発明の防菌・防カビ性合成樹脂製品の上記により
得た試験用平板を並べ，サブロー液体培地の１００倍希
釈液に、クロコウジヵビ（Ａｓｐｅｒｇｉｌｌｕｓ ｎ
ｉｇｅｒ）およびアオカビ（Ｐｅｎｉｃｉ１１ｉｕ■ｃ
ｉｔｒｉｎｕｍ）の胞子分散液をそれぞれ混合して、試
験用平板に噴霧し、２７℃で２１日間培養を行った．そ
の後、試験用平板の表面を観察し、防カビ活性を求めた
．
その結果は、第２表に示したとおりであった。<Example-4> 99.7 parts by weight of PP resin. 0.3 SDBS powder
The weight parts were mixed and molded into kitchen utensil baskets and colanders using an injection molding machine at a processing temperature of 250°C. The usefulness will be concretely demonstrated through test examples. Test Example-1> Using the masterbatch obtained according to Examples-1 and 3, a test plate (50 x 80. Thickness 3 + s
m) was prepared and used as a test plate with a diameter of 14 mm, and the halo effect on bacteria was tested. Escherichia coli ( Escherichia coli
hia coli) and Staphylococcus aureus (St.
phylococcus aureus) were inoculated. The test plates obtained above were arranged on a medium and cultured at 27°C for 48 hours. Then, the diameter of the inhibition circle around the test plate was measured to determine the antibacterial activity. The results are shown in Table 1. ! Next, the test plates of the antibacterial and antifungal synthetic resin product of the present invention obtained as described above were lined up, and a 100-fold dilution of Sabouraud liquid medium was added to Aspergillus niger. n
iger) and blue mold (Penici11iu■c
The spore dispersion liquid of M. itrinum was mixed and sprayed onto a test plate, and cultured at 27° C. for 21 days. Afterwards, the surface of the test plate was observed to determine the antifungal activity. The results were as shown in Table 2.
２表 カビ抵 性試験結果
〈試験例−２〉
実施例−１および３に準じて得たマスターバッチを用い
，射出成形にて試験プレート（５０Ｘ８０，厚み３■鵬
）を作成し，５０Ｘ５０ｓｍｌ７１大きさの試験用平板
とし、カビ抵抗性の試験を行った．
直径９０■■で，高さ２０ｍｍの大きさのシャーレに入
れたポテトデキストローズ寒天培地上に，ｍ見立 ０：
４０倍の実体顕微鏡でカビの成長が認められない．
１：４０倍の実体顕微鏡でカビの菌
糸がわずかに認められる．
２：４０倍の実体顕微鏡で試料表面
の３０％以上認められる．
３：肉眼で明らかに認められ，試料
表面の２０％以上をおおっている．
タンダードとして，色差（ΔＥ）を測定した。Table 2 Mold resistance test results <Test Example 2> Using the masterbatches obtained according to Examples 1 and 3, a test plate (50 x 80, thickness 3 mm) was made by injection molding, and the size was 50 x 50 sml 71 mm. A test plate was used to test the mold resistance. On a potato dextrose agar medium placed in a Petri dish with a diameter of 90 mm and a height of 20 mm, m-meter 0:
No mold growth was observed under a 40x stereo microscope. Slight mold hyphae can be seen under a stereomicroscope at 1:40x magnification. 2: Visible on more than 30% of the sample surface under a stereomicroscope at 40x magnification. 3: It is clearly visible to the naked eye and covers more than 20% of the sample surface. Color difference (ΔE) was measured as a standard.
ＳＤＢＳの添加のプレートは，添加量を０．３％とし，
成形途中にて運転を停止し、５分間射出成形機中に材料
を滞留させた後、成形を再開し作成した．また、比較の
意味で，有機系防菌・防カビ剤のなかでは、耐熱性の良
いとされている，チアベンズイミダゾール（ＴＢＺ）を
０．１％添加し、同様に作威した試験プレートの耐熱性
も同時に評価した．
その結果は、第３表に示すとおりであった。For the SDBS addition plate, the addition amount was 0.3%,
The operation was stopped in the middle of molding, and after allowing the material to remain in the injection molding machine for 5 minutes, molding was restarted and the molding was completed. For comparison, we also prepared a test plate with 0.1% thiabenzimidazole (TBZ), which is said to have good heat resistance among organic antibacterial and antifungal agents. Heat resistance was also evaluated at the same time. The results were as shown in Table 3.
３ 耐性験 （ΔＥ
〈試験例−３〉
実施例−１に準じて得たマスターバッチを用いて、耐熱
性の試験を行った．
ＰＰ樹脂にて、厚み３鵬閣， ５０１１１１Ｘ８０１１
１１の試験プレートを射出戊形により作成した．加工温
度２８０℃．ＳＤＢＳ無添加のプレートをス〔発明の効
果〕3 Resistance test (ΔE <Test Example-3> A heat resistance test was conducted using the masterbatch obtained according to Example-1. Made of PP resin, thickness 3 Peng, 501111 x 8011
Eleven test plates were made by injection molding. Processing temperature 280℃. SDBS-free plates [Effects of the invention]
Claims (1)
ウムの単体、若しくはクエン酸を併用して、熱可塑性樹
脂とドデシルベンゼンスルホン酸ナトリウムとを直接ブ
レンドするか、若しくはあらかじめ押出機などで熱可塑
性樹脂にドデシルベンゼンスルホン酸ナトリウムを練り
込み加工するかして成形加工してなる防菌・防カビ性合
成樹脂製品。1. Directly blend the thermoplastic resin and sodium dodecylbenzenesulfonate by using sodium dodecylbenzene sulfonate alone or in combination with citric acid, or add dodecylbenzene to the thermoplastic resin in advance using an extruder etc. An antibacterial and antifungal synthetic resin product made by kneading or molding sodium sulfonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24321889A JPH03103473A (en) | 1989-09-18 | 1989-09-18 | Antimicrobial and mildewproofing synthetic resin product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24321889A JPH03103473A (en) | 1989-09-18 | 1989-09-18 | Antimicrobial and mildewproofing synthetic resin product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03103473A true JPH03103473A (en) | 1991-04-30 |
Family
ID=17100585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24321889A Pending JPH03103473A (en) | 1989-09-18 | 1989-09-18 | Antimicrobial and mildewproofing synthetic resin product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03103473A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109111735A (en) * | 2018-07-18 | 2019-01-01 | 余姚中国塑料城塑料研究院 | The anti-aging mould proof nylon of one kind and preparation method |
-
1989
- 1989-09-18 JP JP24321889A patent/JPH03103473A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109111735A (en) * | 2018-07-18 | 2019-01-01 | 余姚中国塑料城塑料研究院 | The anti-aging mould proof nylon of one kind and preparation method |
| CN109111735B (en) * | 2018-07-18 | 2021-04-23 | 余姚中国塑料城塑料研究院 | Anti-aging mildew-proof nylon and preparation method thereof |
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