JP2006341598A - Detergent for plastic molding machine - Google Patents

Detergent for plastic molding machine Download PDF

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JP2006341598A
JP2006341598A JP2006134294A JP2006134294A JP2006341598A JP 2006341598 A JP2006341598 A JP 2006341598A JP 2006134294 A JP2006134294 A JP 2006134294A JP 2006134294 A JP2006134294 A JP 2006134294A JP 2006341598 A JP2006341598 A JP 2006341598A
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molding machine
cleaning agent
weight
cleaning
plastic molding
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Kenji Yonishi
謙治 余西
Koichi Fujita
晃一 藤田
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TOYAMA COLORING KK
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TOYAMA COLORING KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a new detergent for a plastic molding machine. <P>SOLUTION: The new detergent comprises a natural glass calcination foam, can fully clean by a simple operation moreover, in a short time and can remarkably improve the cleaning operation efficiency of a plastic molding machine. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明はプラスチック成形機の洗浄剤に関するものである。更に詳細には天然ガラス焼成発泡体を含むプラスチック成形機の洗浄剤に関するものである。   The present invention relates to a cleaning agent for a plastic molding machine. More particularly, the present invention relates to a cleaning agent for a plastic molding machine containing a natural glass fired foam.

一般にプラスチックは成形機が高価なこともあって同一の成形機を用いていろいろのプラスチックを成形したり、着色するような場合がある。このように同一の成形機を使用して各種のプラスチックを成形または着色するような場合には、前の作業で成形機内に残留するプラスチックや着色剤を綺麗に洗浄して除去しておかないと残留プラスチックや着色剤が次の成形品に混入して品質不良を起こすのでプラスチックの成形では成形機の洗浄は必須の作業である。このため従来から成形機の洗浄を目的としてすでにいろいろの洗浄剤が提案されている。例えば特許文献1には成形機の効率的な洗浄剤として、MI値0.01〜5の熱可塑性樹脂100重量部、平均粒径1〜30μの無機多孔性物質5〜30重量部、及び滑剤1〜20重量部からなることを特徴とするプラスチック成形機用洗浄剤が開示されており、特に無機多孔性物質として珪藻土を使用した場合に優れた洗浄効果が発揮されるとされている。また特許文献2には洗浄効果を高めた安価な洗浄剤として高粘度樹脂である高密度ポリエチレン97〜99重量%および無機発泡剤を含有した低粘度樹脂である低密度ポリエチレン1〜3重量%からなる混合物であることを特徴とする洗浄剤が開示されている。更に特許文献3には熱可塑性超高分子を用いた場合の粉末化を防止し、優れた洗浄力と優れた易置換性を有する洗浄剤として熱可塑性樹脂100重量部に対し、熱可塑性超高分子2〜50重量部、スチレン系飽和型熱可塑性エラストマー0.2〜10重量部を含有することを特徴とする成形機用洗浄剤が開示されている。また市販品も多数あり、例えば(株)星プラスチック製のプラクリン(商品名)、三晶MEC(株)製のTADAZO(商品名)や旭化成ケミカルズ(株)製アサクリン(商品名)など多数の洗浄剤が知られている。しかしながらこれらの洗浄剤は洗浄剤に必要な高洗浄性、低残渣性、簡便性、無毒性、短時間作業性、低価格などの諸要件のうち洗浄力は大きくても残留物、例えばガラスチョップや炭酸カルシウムなどの残留物が多かったり、また残留物は少ないが洗浄力も弱いなどの問題点があり特に高洗浄性、低残渣性、短時間作業性について十分に満足できるような洗浄剤は未だ見出されていないのが現状である。
特開平5−269755 特開平10−81898 特開2001−150456
In general, plastics are expensive in molding machines, and various plastics may be molded or colored using the same molding machine. In this way, when molding or coloring various plastics using the same molding machine, it is necessary to clean and remove the plastic and colorant remaining in the molding machine in the previous operation. Residual plastics and colorants are mixed into the next molded product and cause poor quality. Therefore, it is essential to clean the molding machine in plastic molding. For this reason, various cleaning agents have already been proposed for the purpose of cleaning molding machines. For example, in Patent Document 1, as an efficient cleaning agent for a molding machine, 100 parts by weight of a thermoplastic resin having an MI value of 0.01 to 5, 5 to 30 parts by weight of an inorganic porous material having an average particle diameter of 1 to 30 μm, and a lubricant A cleaning agent for plastic molding machines characterized by comprising 1 to 20 parts by weight is disclosed, and it is said that an excellent cleaning effect is exhibited particularly when diatomaceous earth is used as the inorganic porous material. Patent Document 2 discloses from 97 to 99% by weight of high-density polyethylene, which is a high-viscosity resin, and 1-3% by weight of low-density polyethylene, which is a low-viscosity resin containing an inorganic foaming agent, as an inexpensive cleaning agent with improved cleaning effect. A cleaning agent characterized in that it is a mixture is disclosed. Furthermore, in Patent Document 3, powdering when using a thermoplastic superpolymer is prevented, and as a cleaning agent having an excellent detergency and an excellent easily replaceability, 100 parts by weight of a thermoplastic resin is used. Disclosed is a molding machine cleaning agent comprising 2 to 50 parts by weight of a molecule and 0.2 to 10 parts by weight of a styrene saturated thermoplastic elastomer. There are also many commercially available products such as Placrine (trade name) manufactured by Hoshi Plastics, TADAZO (trade name) manufactured by Sanki MEC Co., Ltd., and Asacrine (trade name) manufactured by Asahi Kasei Chemicals Co., Ltd. Agents are known. However, these detergents have high detergency, low residue, convenience, non-toxicity, short-time workability, low cost, etc., which are necessary for the detergent. There is still a problem that there are many residues such as calcium carbonate, and there are few residues but weak cleaning power. The current situation is not found.
JP-A-5-269755 JP-A-10-81898 JP 2001-150456 A

本発明者らは前記洗浄剤の諸要件のうち特に高洗浄性、低残渣性、短時間作業性に優れると同時に他の諸要件をも十分に満足せしめるようなプラスチック成形機の洗浄剤の開発を進めた結果、従来公知の洗浄剤とは全く異なる天然ガラス焼成発泡体を含む洗浄剤がこれらの要件を満たす極めて優れた洗浄剤であることを見出したものである。   The present inventors have developed a cleaning agent for a plastic molding machine that is particularly excellent in high cleaning properties, low residue properties, and short-time workability among the various cleaning agent requirements, and at the same time sufficiently satisfies other requirements. As a result, the present inventors have found that a cleaning agent containing a natural glass fired foam that is completely different from a conventionally known cleaning agent is an extremely excellent cleaning agent that satisfies these requirements.

本発明において使用される天然ガラス焼成発泡体とはガラス質火山岩またはガラス質火山砕屑物の焼成発泡体であって、このうちガラス質火山岩とは、黒曜石(obsidian)、真珠岩(perlite)、松脂岩(pitchstone)などを総称する火山ガラスを主とする岩石である。本発明ではこのようなガラス質火山岩を焼成発泡させたものが用いられるが、このうち真珠岩、黒曜石またはこれに準ずる石質を有する岩石を粉砕、焼成、膨張させたパーライトが好ましく使用される。パーライトは平均粒径が数μm〜20mm程度のものが知られている。   The natural glass fired foam used in the present invention is a fired foam of glassy volcanic rocks or glassy volcanic debris. Among these, glassy volcanic rocks are obsidian, perlite, pine resin. It is a rock composed mainly of volcanic glass that collectively refers to rocks (pitchstone). In the present invention, those obtained by firing and foaming such glassy volcanic rocks are used. Of these, pearlite obtained by pulverizing, firing, and expanding pearlite, obsidian, or rocks having a similar stone quality is preferably used. Pearlite having an average particle diameter of about several μm to 20 mm is known.

次に本発明で使用されるガラス質火山砕屑物とは、火山活動により地表に放出された破片状の固体物質の総称であり、火山灰、軽石、シラス、白土などが含まれる。本発明ではこれらのガラス質火山砕屑物の焼成発泡体が使用されるが、特に火山灰を焼成発泡させたシラスバルーンが好ましく使用される。シラスバルーンはいろいろの品種のものが知られているが通常平均粒径が40μm〜1mm程度のものが知られており、また平均粒径が20μm以下の微粒シラスバルーンも知られている。なお本発明ではこれらの焼成発泡体の表面がシランカップリング剤やシリコンレジンなどで表面処理されたものも使用し得る。   Next, the vitreous volcanic debris used in the present invention is a general term for debris-like solid substances released to the surface by volcanic activity, and includes volcanic ash, pumice, shirasu, and white clay. In the present invention, a fired foam of these glassy volcanic debris is used. In particular, a shirasu balloon obtained by firing and foaming volcanic ash is preferably used. Although various types of shirasu balloons are known, those having an average particle diameter of about 40 μm to 1 mm are generally known, and fine shirasu balloons having an average particle diameter of 20 μm or less are also known. In the present invention, those whose surface is treated with a silane coupling agent or silicon resin can be used.

また本発明ではこのようなガラス質火山岩やガラス質火山砕屑物の焼成発泡体の混合物も使用できる。本発明の天然ガラス焼成発泡体は内部に多孔質構造を有し、また破断され易く自己発刃効果に優れ、かつ発泡体であるために嵩比重が樹脂に近くそのため樹脂に良く分散して練り込むことができる利点がある。なお天然ガラス焼成発泡体の代わりに珪藻土を使用することが知られているが、珪藻土はその仕様はシラスバルーンと似ているが、洗浄剤の添加剤としてはその効果は好ましくない。ゼオライトは発泡体でなく、嵩比重が大きいので好ましくない。   In the present invention, a mixture of such a fired foam of glassy volcanic rock or glassy volcanic debris can be used. The natural glass fired foam of the present invention has a porous structure inside, is easy to break, has an excellent self-sharpening effect, and since it is a foam, its bulk specific gravity is close to that of the resin, so it is well dispersed and kneaded in the resin. There is an advantage that can be included. It is known that diatomaceous earth is used instead of the natural glass fired foam, but diatomaceous earth is similar in specification to shirasu balloon, but its effect is not preferable as an additive for a cleaning agent. Zeolite is not a foam and is not preferred because of its large bulk specific gravity.

本発明の洗浄剤に使用される焼成発泡体はどのような種類のものも使用できるが、平均粒径が2μm〜180μmのものが好ましく使用される。パーライトやシラスバルーンはいろいろの品種のものが市販されており、それらを使用することができる。本発明の洗浄剤は、天然ガラス焼成発泡体を熱可塑性プラスチックに練り込む方法で製造されたものが好適に使用されるが、これに更に酸化防止剤、発泡剤、界面活性剤、滑剤を併用した場合に優れた洗浄効果が発揮される。そして本発明の洗浄剤に使用される熱可塑性プラスチックは特に限定はないが成形機内に残留しているプラスチックと同じ成形温度領域のプラスチックを使用することが洗浄する際の温度を上下させる必要がなく洗浄効果が発揮されるので好ましい。また特に好ましい熱可塑性プラスチックとしては他の樹脂との相溶性があまりないポリプロピレン樹脂やポリスチレン樹脂の他にポリカーボネート樹脂やABS樹脂などを挙げることができる。併用される酸化防止剤、発泡剤、界面活性剤や滑剤も特に限定はなくいろいろのものが使用し得るが、酸化防止剤としてはトリス(2,4−ジーtert―ブチルフェニル)ホスファイトやビス(2,6−ジーtert―ブチルー4−メチルフェニル)ペンタエリスリトールジホスファイトなどが好ましい。また発泡剤はアゾジカルボン酸アミドのような有機アゾ系の発泡剤が好ましい。無機系の発泡剤は熱反応を起こして塩を生成しその塩が次材が半透明または透明な製品の場合、製品の外観不良を起こすから好ましくない。次に界面活性剤は特にステアリン酸亜鉛が好ましい。しかも高温で使用する洗浄剤にはステアリン酸マグネシウムとの併用が好ましい。しかし熱可塑性樹脂がポリカーボネート樹脂の場合には金属体がポリカーボネート樹脂の再重合を促進し分子量低下を起こすためにこの場合はエチレンビスステアリン酸アミドが好ましい。次に本発明で使用される滑剤としては、アルカ酸アミドが特に好ましい。併用される酸化防止剤、発泡剤、界面活性剤や滑剤はこれらを熱可塑性樹脂に固着{メルトカラーリング(MC)法による}、混合または溶融混練して使用するのが好ましい。また適切な酸化防止剤を使用することにより、界面活性剤の添加量を増加することができ、このことは洗浄効果を高めるだけでなく、洗浄剤が形成機内に残留しにくくするので、大変好ましい。そしてこれらの各成分の使用割合は熱可塑性樹脂100重量部に対して天然ガラス焼成発泡体5〜30重量部、酸化防止剤0.1〜5重量部、界面活性剤0.1〜5重量部、有機系発泡剤0.1〜5重量部、滑剤0〜1、好ましくは0.05〜1重量部を混合したものが好ましく使用される。なお発泡剤は本発明の洗浄剤に最初から混合してもよいが、プラスチック成形機の洗浄の際に別に使用したほうが好ましい場合がある。その場合の発泡剤の使用量は洗浄剤と同量使用することが好ましい。   Any type of fired foam used in the cleaning agent of the present invention can be used, but those having an average particle diameter of 2 μm to 180 μm are preferably used. Various types of perlite and shirasu balloons are commercially available and can be used. As the cleaning agent of the present invention, those manufactured by a method of kneading natural glass fired foam into thermoplastics are preferably used, and in addition, an antioxidant, a foaming agent, a surfactant, and a lubricant are used in combination. In this case, an excellent cleaning effect is exhibited. The thermoplastic used in the cleaning agent of the present invention is not particularly limited, but using a plastic having the same molding temperature region as the plastic remaining in the molding machine eliminates the need to increase or decrease the temperature during cleaning. This is preferable because the cleaning effect is exhibited. Particularly preferred thermoplastics include polycarbonate resins and ABS resins in addition to polypropylene resins and polystyrene resins that are not very compatible with other resins. Antioxidants, foaming agents, surfactants and lubricants used in combination are not particularly limited, and various types can be used, but examples of the antioxidant include tris (2,4-di-tert-butylphenyl) phosphite and bis (2,6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphite is preferred. The foaming agent is preferably an organic azo foaming agent such as azodicarboxylic acid amide. Inorganic foaming agents are not preferred because they cause a thermal reaction to produce a salt and the salt is a translucent or transparent product that causes a poor appearance of the product. Next, the surfactant is particularly preferably zinc stearate. In addition, the detergent used at high temperature is preferably used in combination with magnesium stearate. However, when the thermoplastic resin is a polycarbonate resin, the metal body promotes repolymerization of the polycarbonate resin and causes a decrease in molecular weight. In this case, ethylenebisstearic acid amide is preferable. Next, as the lubricant used in the present invention, alkanoic acid amide is particularly preferable. Antioxidants, foaming agents, surfactants and lubricants used in combination are preferably used after being fixed to a thermoplastic resin (by the melt coloring (MC) method), mixed or melt-kneaded. Also, by using an appropriate antioxidant, the amount of surfactant added can be increased, which not only enhances the cleaning effect but also makes it difficult for the cleaning agent to remain in the forming machine, which is very preferable. . And the usage-amount of each of these components is 5-30 weight part of natural glass baked foams with respect to 100 weight part of thermoplastic resins, 0.1-5 weight part of antioxidant, 0.1-5 weight part of surfactant. A mixture of 0.1 to 5 parts by weight of an organic foaming agent and 0 to 1, preferably 0.05 to 1 part by weight of a lubricant is preferably used. Although the foaming agent may be mixed from the beginning with the cleaning agent of the present invention, it may be preferable to use it separately when cleaning the plastic molding machine. In that case, it is preferable to use the same amount of foaming agent as the cleaning agent.

次に本発明で成形に使用されるプラスチックは特に限定はなく汎用熱可塑性プラスチック、例えばポリエチレン、ポリプロピレンなどのポリオレフィン樹脂、塩化ビニール樹脂、メタクリル樹脂、ポリスチレン樹脂、などやエンジニアリングプラスチック、例えばポリアミド、ポリアセタール、飽和ポリエステル、ポリカーボネート、変性PPEなど、またスーパーエンプラ、例えばポリフェニレンスルフィド、ポリスルフォン系樹脂、ポリエーテルエーテルケトンなど、また特殊プラスチック、例えば液晶ポリマーやふっ素樹脂などを挙げることができる。   Next, the plastic used for molding in the present invention is not particularly limited, and general-purpose thermoplastics such as polyolefin resins such as polyethylene and polypropylene, vinyl chloride resins, methacrylic resins, polystyrene resins, and engineering plastics such as polyamide, polyacetal, Examples include saturated polyesters, polycarbonates, modified PPE, and super engineering plastics such as polyphenylene sulfide, polysulfone resins, polyether ether ketones, and special plastics such as liquid crystal polymers and fluorine resins.

また本発明で使用されるプラスチック成形機は特に限定はなく例えば押出成形機、射出成形機、ブロー成形機や回転成形機などの各種の成形機を挙げることができる。次に本発明の洗浄剤による洗浄方法について述べると、例えば押出成形機の場合には、まずシリンダー内に残っているプラスチックを完全に排出した後、シリンダー容量の2〜3倍の洗浄剤をホッパーに投入し所定の温度でスクリュウを回転させて洗浄剤を排出する方法で行われる。また射出成形機の場合には成形品重量の3〜10倍の洗浄剤を使用することが好ましい。洗浄の条件は使用する成形機の種類や、使用するプラスチックの種類などによって異なるが当業者であれば最適洗浄条件を容易に見出すことができる。   The plastic molding machine used in the present invention is not particularly limited, and examples thereof include various molding machines such as an extrusion molding machine, an injection molding machine, a blow molding machine, and a rotary molding machine. Next, the cleaning method using the cleaning agent of the present invention will be described. For example, in the case of an extrusion molding machine, first, the plastic remaining in the cylinder is completely discharged, and then the cleaning agent of 2 to 3 times the cylinder capacity is supplied to the hopper. The cleaning agent is discharged by rotating the screw at a predetermined temperature and discharging the cleaning agent. In the case of an injection molding machine, it is preferable to use a cleaning agent 3 to 10 times the weight of the molded product. The cleaning conditions vary depending on the type of molding machine used and the type of plastic used, but those skilled in the art can easily find the optimal cleaning conditions.

本発明の洗浄剤はプラスチック成形機の洗浄性に極めて優れており、簡単な操作で残渣がなく、しかも短時間で十分に洗浄することができるが、このように優れた洗浄効果は天然ガラス焼成発泡体それ自身が極めて優れた洗浄性を有し、また多孔質状であり汚れや異物の吸着性に優れ、更に天然ガラス焼成発泡体が成形機内で破壊されるときのキャビテーション効果によって成形機内に付着している汚れや着色剤などの異物を剥離させることによるものと考えられる。このように本発明の洗浄剤を使用することによって成形品への異物などの混入による不良率を低減させて作業効率を著しく向上せしめることができる。   The cleaning agent of the present invention is extremely excellent in the cleaning property of a plastic molding machine, has no residue with a simple operation, and can be sufficiently cleaned in a short time. The foam itself has excellent cleaning properties, is porous and has excellent dirt and foreign matter adsorbability, and the cavitation effect when the natural glass fired foam breaks in the molding machine. This is considered to be due to peeling off foreign matters such as adhering dirt and colorant. As described above, by using the cleaning agent of the present invention, it is possible to reduce the defect rate due to the mixing of foreign matters and the like into the molded product and to significantly improve the working efficiency.

本発明の洗浄剤はプラスチック成形機の洗浄性に極めて優れており、簡単な操作でしかも短時間で十分に洗浄でき、プラスチック成形機の洗浄作業効率を著しく向上させることができる。   The cleaning agent of the present invention is extremely excellent in the cleaning performance of the plastic molding machine, can be sufficiently cleaned in a short time with a simple operation, and can greatly improve the cleaning work efficiency of the plastic molding machine.

[実施例]
次に実施例によって本発明を更に詳細に説明する。
[Example]
Next, the present invention will be described in more detail by way of examples.

本発明の洗浄剤と市販の洗浄剤との性能比較実験
型締め圧20トンの横型射出成形機(日本製鋼所(株)製、N20C)を使用して本発明の洗浄剤と市販の洗浄剤との性能比較実験を次のように行った。なお本発明の洗浄剤はシラスバルーン(豊和直(株)製品、SKB9000,粒径150μm以下)10重量%、ポリエチレン(日本ポリプロ(株)製品、ノバテックLJ603)90重量%の混合物を溶融混合してペレット化したものを用いた。
(1)ポリエチレン(日本ポリプロ(株)製品、ノバテックLJ603)をベース材に濃
い青色に着色した材料200gをホッパーに投入し、製品(サイドゲート2個取り
、製品重量およびランナー込みで12g)を6ショット成形し、終了後計量、射出
を繰り返して成形機内の樹脂材料をすべて排出する。
(2)次いで洗浄剤の所定の重量をホッパーから投入する。このとき洗浄剤は比較のため
成形機の洗浄が完了しない量を投入する。
(3)射出成形機を手動にして計量、計量完了後射出を繰り返して成形機内の洗浄剤をす
べて排出する。計量時にかける背圧は15〜30%が望ましい。
(4)その後ポリプロピレンのナチュラル材(透明)(サンアロマ(株)製品、サンアロ
マPM940M)をホッパーに投入して成形し、成形品が透明になるまでのポリプ
ロピレン(PP)の量およびそれまでの所要時間を測定する。
Performance comparison between the cleaning agent of the present invention and a commercially available cleaning agent Using a horizontal injection molding machine (N20C, manufactured by Nippon Steel Co., Ltd.) with a clamping pressure of 20 tons, the cleaning agent of the present invention and a commercially available cleaning agent A performance comparison experiment was performed as follows. The cleaning agent of the present invention is obtained by melting and mixing a mixture of 10% by weight of Shirasu Balloon (product of Naoto Toyokazu Co., Ltd., SKB9000, particle size of 150 μm or less) and 90% by weight of polyethylene (product of Nippon Polypro Co., Ltd., Novatec LJ603). The pelletized material was used.
(1) 200 g of polyethylene (Nippon Polypro Co., Ltd. product, Novatec LJ603) base material colored dark blue is charged into the hopper, and the product (12 g including product weight and runner included) Mold 6 shots, and after completion, weigh and inject repeatedly to discharge all resin material in the molding machine.
(2) Next, a predetermined weight of the cleaning agent is charged from the hopper. At this time, the cleaning agent is introduced in an amount that does not complete the cleaning of the molding machine for comparison.
(3) Weighing with the injection molding machine manually, repeat injection, and discharge all cleaning agent in the molding machine. The back pressure applied during measurement is preferably 15 to 30%.
(4) After that, polypropylene natural material (transparent) (San Aroma Co., Ltd. product, Sun Aroma PM940M) is put into the hopper and molded, and the amount of polypropylene (PP) until the molded product becomes transparent and so on Measure the time required for.

実験結果を下表にまとめて示した。   The experimental results are summarized in the table below.


本発明の洗浄剤 市販品A 市販品B PP
のみで洗浄
洗浄剤の投入量 50g 50g 50g
透明になるまでの 102.5g 247.5g 363g 497g
PPの量
同所要時間 8分 18分 24分 30分
(註)市販品A : アサクリン、タイプU (旭化成ケミカルズ株式会社製品)
市販品B : TADAZO、200S (三晶 MEC株式会社製品)

Cleaning agent of the present invention Commercial product A Commercial product B PP
Amount of detergent supplied only for cleaning 50g 50g 50g
102.5g until becoming transparent 247.5g 363g 497g
Same amount of PP required time 8 minutes 18 minutes 24 minutes 30 minutes (市 販) Commercial product A: Asacrine, type U (product of Asahi Kasei Chemicals Corporation)
Commercial product B: TADAZO, 200S (product of Sanki MEC Co., Ltd.)

押出成形機(中方製作所(株)製、TS65)の洗浄
濃青色に着色されたポリエチレン(実施例1で使用されたものと同じもの)を用いて押出成形を行った後、成形機内に残留する着色されたポリエチレンをすべて排出する。次いでシリンダー容量の2倍の本発明の洗浄剤(これはシラスバルーン(実施例1で使用されたものと同じもの)10重量%、ポリエチレン(実施例1で使用されたものと同じもの)90重量%の混合物を溶融混合してペレット化したものである)をホッパーに投入し、ポリエチレンの成形温度で押出成形機のスクリュウを50〜100rpmで回転させ洗浄剤をすべて排出させる。次いで発泡剤(涛和化学(株)製品、スーパークリーナー)3重量%とポリエチレン(実施例1で使用されたものと同じもの)97重量%からなる発泡剤をポリエチレンに固着させたものを洗浄剤と同量ホッパーに投入し、ポリエチレンの成形温度で押出成形機のスクリュウを50〜100rpmで回転させて発泡剤をすべて排出させる。その後、ポリプロピレン{ナチュラル材(透明)、実施例1で使用されたものと同じもの}をホッパー内に投入し、ポリプロピレンの成形温度でスクリュウを50〜100rpmで回転させ排出されるポリプロピレン中に顔料、コゲ、異物が混入していないか、または残っていた洗浄剤が排出されないかを確認したところ、これらの顔料、コゲ、異物、残留洗浄剤などの排出は殆ど認められず押出成形機の洗浄が完了していたことを示した。なお洗浄時間は約15〜16分であった。
Washed by an extrusion molding machine (manufactured by Chukata Seisakusho Co., Ltd., TS65) Extruded using a deep blue colored polyethylene (the same as that used in Example 1), and then remains in the molding machine Drain all colored polyethylene. Next, the cleaning agent of the present invention having twice the cylinder capacity (this is 10% by weight of shirasu balloon (the same as that used in Example 1), 90% by weight of polyethylene (the same as that used in Example 1) % Mixture is melt-mixed and pelletized) is put into a hopper, and the screw of the extruder is rotated at 50 to 100 rpm at the polyethylene molding temperature to discharge all the cleaning agent. Next, a detergent obtained by fixing a foaming agent consisting of 3% by weight of a foaming agent (product of Yuwa Chemical Co., Ltd., Super Cleaner) and 97% by weight of polyethylene (same as that used in Example 1) to the polyethylene The same amount is put into the hopper, and the screw of the extruder is rotated at 50 to 100 rpm at the polyethylene molding temperature to discharge all the foaming agent. Thereafter, polypropylene {natural material (transparent), the same as that used in Example 1} is put into the hopper, the screw is rotated at 50 to 100 rpm at the polypropylene molding temperature, and the pigment is discharged into the polypropylene. When it was confirmed that no kogation or foreign matter was mixed in or the remaining cleaning agent was not discharged, almost no discharge of these pigments, kogation, foreign matter, or residual cleaning agent was observed, and the extrusion machine was not cleaned. Indicates that it was complete. The washing time was about 15 to 16 minutes.

実施例2で本発明の洗浄剤のシラスバルーンの代わりにパーライト(フヨーライト(株)製品、フヨーライト1号)を使用した以外は実施例2と同様に操作したところ残留物の排出は殆ど認められず押出成形機の洗浄が完了していたことを示した。洗浄時間は約22〜23分であった。   In Example 2, operation was carried out in the same manner as in Example 2 except that perlite (Foolite Co., Ltd. product, Foyolite No. 1) was used in place of the cleaning balloon of the present invention. The cleaning of the extruder was complete. The washing time was about 22-23 minutes.

射出成形機(実施例1で使用されたと同じもの)の洗浄
濃青色に着色されたポリエチレン(実施例2で使用されたものと同じもの)を使用して射出成形を行った後、成形機内に残留する着色されたポリエチレンをすべて排出した。次いで成形品重量の5倍の量の実施例2で使用されたと同じ本発明の洗浄剤および発泡剤を用いて実施例2と同様の方法で計量、射出を繰り返して成形機の洗浄および洗浄剤と発泡剤の排出を行った。計量時にかける背圧は15〜30%が望ましい。その後実施例2で使用されたと同じポリプロピレンのナチュラル材(透明)をホッパーに投入し、成形を行って成形品中に顔料、コゲ、異物または残留洗浄剤が混入していないか確認したところ、これらの混入は殆どなく射出成形機の洗浄が完了していたことを示した。なお洗浄時間は約7〜8分であった。
Washing of injection molding machine (same as used in Example 1 ) After performing injection molding using a deep blue colored polyethylene (same as used in Example 2), then into the molding machine Any remaining colored polyethylene was discharged. Then, using the same cleaning agent and foaming agent of the present invention as used in Example 2 in an amount 5 times the weight of the molded article, weighing and injection were repeated in the same manner as in Example 2 to wash and clean the molding machine. And the blowing agent was discharged. The back pressure applied during measurement is preferably 15 to 30%. After that, the same polypropylene natural material (transparent) as used in Example 2 was put into the hopper, and after molding, it was confirmed that pigments, koge, foreign matter or residual cleaning agent was not mixed in the molded product. It was shown that the injection molding machine was completely cleaned. The washing time was about 7-8 minutes.

実施例4で発泡剤による洗浄を行わなかった以外は実施例4と同様に射出成形機の洗浄を行ったところ洗浄時間は13〜14分が必要であった。   When the injection molding machine was cleaned in the same manner as in Example 4 except that the cleaning with the foaming agent was not performed in Example 4, the cleaning time of 13 to 14 minutes was required.

実施例4で発泡剤の代わりに発泡剤(実施例4と同じもの)3重量%、界面活性剤(旭電化(株)製品、アデカソール)0.5重量%、実施例2で使用されたと同じポリエチレン96.5重量%からなる発泡剤と界面活性剤をポリエチレンに固着させたものを使用した以外は実施例4と同様にして射出成形機の洗浄を行ったところ、洗浄時間は約7分であった。   Instead of the foaming agent in Example 4, 3% by weight of the foaming agent (same as in Example 4), 0.5% by weight of surfactant (Asahi Denka Co., Ltd. product, Adekasol), the same as used in Example 2 The injection molding machine was cleaned in the same manner as in Example 4 except that a foaming agent comprising 96.5% by weight of polyethylene and a surfactant fixed to polyethylene were used. The cleaning time was about 7 minutes. there were.

濃青色に着色されたポリアミド(ナイロン樹脂、宇部興産(株)製品 1013NW8)を使用して、実施例4と同じ射出成形機を使って射出成形を行った後、成形機内に残留するポリアミドをすべて排出した。次いで実施例4の洗浄剤および発泡剤のポリエチレンの代わりにポリアミド(ナイロン樹脂、宇部興産(株)製品 1013NW8)を使用した洗浄剤および発泡剤を使用して実施例4と同様にして計量、射出を繰り返して成形機の洗浄および洗浄剤と発泡剤の排出を行った。その後ポリアミド(ナイロン樹脂)のナチュラル材(乳白色)(宇部興産(株)製品 1013NW8)をホッパーに投入し、成形を行って成形品中に顔料、コゲ、異物または残留洗浄剤が混入していないかを確認したところ、これらの混入はなく射出成形機の洗浄は完了していた。このときの洗浄時間は約8〜9分であった。   After the injection molding was performed using the same injection molding machine as in Example 4 using a polyamide colored in deep blue (nylon resin, Ube Industries, Ltd. product 1013NW8), all remaining polyamide in the molding machine Discharged. Next, measurement and injection were performed in the same manner as in Example 4 using the cleaning agent and foaming agent using polyamide (nylon resin, Ube Industries, Ltd. product 1013NW8) instead of polyethylene as the cleaning agent and foaming agent of Example 4. Was repeated to clean the molding machine and discharge the cleaning agent and foaming agent. After that, a natural material (milky white) of polyamide (nylon resin) (Ube Industries, Ltd. product 1013NW8) is put into the hopper and molded, and then the molded product is free of pigments, koge, foreign matter or residual cleaning agent. As a result, it was confirmed that the injection molding machine was completely cleaned without any contamination. The washing time at this time was about 8 to 9 minutes.

濃青色に着色されたポリカーボネート樹脂(三菱エンジニアリングプラスチックス(株)製品、7120)を使用して、実施例4と同じ射出成形機を使って射出成形を行った後、成形機内に残留するポリカーボネートをすべて排出した。次いで実施例4の洗浄剤および発泡剤のポリエチレンの代わりにポリカーボネート樹脂(三菱エンジニアリングプラスチックス(株)製品、7120)を使用した洗浄剤および発泡剤を使用して実施例4と同様にして計量、射出を繰り返して成形機の洗浄および洗浄剤と発泡剤の排出を行った。その後ポリカーボネート樹脂のナチュラル材(透明)(三菱エンジニアリングプラスチックス(株)製品、7120)をホッパーに投入し、成形を行って成形品中に顔料、コゲ、異物または残留洗浄剤が混入していないかを確認したところ、これらの混入はなく射出成形機の洗浄は完了していた。このときの洗浄時間は約8〜9分であった。   Using polycarbonate resin colored by deep blue (Mitsubishi Engineering Plastics Co., Ltd., 7120), injection molding was performed using the same injection molding machine as in Example 4, and then the polycarbonate remaining in the molding machine was removed. All discharged. Next, using the cleaning agent and the foaming agent using polycarbonate resin (Mitsubishi Engineering Plastics Co., Ltd., 7120) instead of the cleaning agent and the foaming agent polyethylene of Example 4, measurement was performed in the same manner as in Example 4. The injection was repeated and the molding machine was washed and the detergent and foaming agent were discharged. Then, put polycarbonate resin natural material (transparent) (Mitsubishi Engineering Plastics Co., Ltd. product, 7120) into the hopper and perform molding to check if any pigment, burnt, foreign matter or residual cleaning agent is mixed in the molded product. As a result, it was confirmed that the injection molding machine was completely cleaned without any contamination. The washing time at this time was about 8 to 9 minutes.

次のA〜Gの各洗浄剤を調製して、形成機の洗浄を行った。実験条件は下記のとおりである。
(A)トーヨースチロール(株)製ポリスチレン樹脂(MT−2−301)100重量部
に豊和直(株)製シラスバルーン(SKB−9000)15重量部と城北化学(株
)製酸化防止剤(JP−650)2重量部と旭電化工業(株)製界面活性剤(エフ
コケム ZNS−P)5重量部を加えてタンブラーでブレンドし、ルーダー加工機
で練り込んだ製品。
(B)Aの製品に更に永和化学(株)製発泡剤(有機系ポリスレンEE−206)5重量
部を配合してブレンドした製品。
(C)トーヨースチロール(株)製ポリスチレン樹脂(MT−2−301)100重量部
に対して豊和直(株)製シラスバルーン(SKB−9000)15重量部、城北化
学(株)製酸化防止剤(JP−650)0.2重量部、旭電化工業(株)製界面活
性剤(エフコケム ZNS−P)0.15重量部、日本精化(株)製滑剤(ニュー
トロンS)0.2重量部をブレンドしてルーダー加工機で練り込んだ製品。
(D)デンカ(株)製ABS樹脂(GR−3000)100重量部に旭電化工業(株)製
酸化防止剤(アデカスタグPEP−36)2重量部、豊和直(株)製シラスバルー
ン(SKB−9000)15重量部、旭電化工業(株)製界面活性剤(エフコケム
ZNS−P)5重量部を加えてタンブラーでブレンドし、ルーダー加工機で練り
込んだ製品。
(E)Dの製品に更に永和化成工業(株)製ポリスチレン(EB201)5重量部を加え
てタンブラーでブレンドした製品。
(F)三菱エンジニアリングプラスチックス(株)製ポリカーボネート樹脂(ノバレック
ス7030R)100重量部に対して旭電化工業(株)製酸化防止剤(アデカスタ
グPEP−36)2重量部、豊和直(株)製シラスバルーン(SKB−9000)
15重量部、大日化学工業(株)製界面活性剤(ダイワックスBA)5重量部を加
えてタンブラーでブレンドし、ルーダー加工機で練り込んだ製品。
(G)Fの製品に更に永和化成工業(株)製ポリスチレン(EB201)5重量部を加え
てタンブラーでブレンドした製品。
(H)サンアロマー(株)製ポリプロピレン樹脂(PB222A)100重量部に対して
豊和直(株)製シラスバルーン(SKB9000)15重量部と城北化学(株)製
酸化防止剤(JP−650)2重量部と旭電化工業(株)製界面活性剤(エフコケ
ム ZNS−P)5重量部を加えてタンブラーでブレンドし、ルーダー加工機で練
り込んだ製品。
(I)Hの製品に更に永和化学(株)製発泡剤(有機系ポリスレンEE−206)5重量
部を加えてタンブラーでブレンドした製品。
The following cleaning agents A to G were prepared, and the forming machine was cleaned. The experimental conditions are as follows.
(A) 100 parts by weight of polystyrene resin (MT-2-301) manufactured by Toyostyrene Co., Ltd., and 15 parts by weight of Shirasu Balloon (SKB-9000) manufactured by Toyohazu Nao Co., Ltd. and an antioxidant manufactured by Johoku Chemical Co., Ltd. (JP) -650) A product obtained by adding 2 parts by weight and 5 parts by weight of a surfactant (F Cochem ZNS-P) manufactured by Asahi Denka Kogyo Co., Ltd., blending with a tumbler, and kneading with a ruder processing machine.
(B) A product obtained by further blending 5 parts by weight of a foaming agent (organic polyslene EE-206) manufactured by Eiwa Chemical Co., Ltd. with the product A.
(C) Toyostyrene Co., Ltd. polystyrene resin (MT-2-301) 100 parts by weight Toyowa Naoshi Co., Ltd. Shirasu Balloon (SKB-9000) 15 parts by weight, Johoku Chemical Co., Ltd. antioxidant 0.2 parts by weight of a preparation (JP-650), 0.15 parts by weight of a surfactant (Fcochem ZNS-P) manufactured by Asahi Denka Kogyo Co., Ltd., and a lubricant (Nutron S) manufactured by Nippon Seika Co., Ltd. A product blended with 2 parts by weight and kneaded with a ruder processor.
(D) 100 parts by weight of Denka's ABS resin (GR-3000), 2 parts by weight of antioxidant (Adekastag PEP-36) manufactured by Asahi Denka Kogyo Co., Ltd. 9000) 15 parts by weight, 5 parts by weight of surfactant (Efcochem ZNS-P) manufactured by Asahi Denka Kogyo Co., Ltd., blended with a tumbler, and kneaded with a ruder processor.
(E) A product obtained by adding 5 parts by weight of polystyrene (EB201) manufactured by Eiwa Chemical Industry Co., Ltd. to the product of D and blending with a tumbler.
(F) 2 parts by weight of an antioxidant (Adekastag PEP-36) manufactured by Asahi Denka Kogyo Co., Ltd. and 100% by weight of polycarbonate resin (Novalex 7030R) manufactured by Mitsubishi Engineering Plastics Co., Ltd. Shirasu Balloon (SKB-9000)
A product obtained by adding 15 parts by weight and 5 parts by weight of a surfactant (die wax BA) manufactured by Dainichi Chemical Industry Co., Ltd., blending with a tumbler, and kneading with a ruder processing machine.
(G) A product obtained by adding 5 parts by weight of polystyrene (EB201) manufactured by Eiwa Chemical Industry Co., Ltd. and blending with a tumbler.
(H) Sunaromer Co., Ltd. polypropylene resin (PB222A) 100 parts by weight Toyowa Naoshi Co., Ltd. Shirasu Balloon (SKB9000) 15 parts by weight and Johoku Chemical Co., Ltd. antioxidant (JP-650) 2 parts by weight And 5 parts by weight of a surfactant (Fcochem ZNS-P) manufactured by Asahi Denka Kogyo Co., Ltd., blended with a tumbler, and kneaded with a ruder processing machine.
(I) A product obtained by adding 5 parts by weight of a foaming agent (organic polyslene EE-206) manufactured by Eiwa Chemical Co., Ltd. to a product of H and blending with a tumbler.

本発明の洗浄剤と市販の洗浄剤との性能比較実験
型締め圧20トンの横型射出成形機(日本製鋼所(株)製、N20C)を使用して本発明の洗浄剤と市販の洗浄剤との性能比較実験を次のように行った。なお本発明の洗浄剤は実施例9の(I)を使用した。
(1)ポリエチレン(日本ポリプロ(株)製品、ノバテックLJ603)をベース材に濃
い赤色に着色した材料100gをホッパーに投入し、製品(サイドゲート2個取り
、製品重量およびランナー込みで12g)を3ショット成形し、終了後計量、射出
を繰り返して成形機内の樹脂材料をすべて排出する。
(2)次いで洗浄剤の所定の重量をホッパーから投入する。このとき洗浄剤は比較のため
成形機の洗浄が完了しない量を投入する。
(3)射出成形機を手動にして計量、計量完了後射出を繰り返して成形機内の洗浄剤をす
べて排出する。計量時にかける背圧は15〜30%が望ましい。
(4)その後ポリプロピレンのナチュラル材(透明)(サンアロマ(株)製品、サンアロ
マPM940M)をホッパーに投入して成形し、成形品が透明になるまでのポリプ
ロピレン(PP)の量およびそれまでの所要時間を測定する。
Performance comparison between the cleaning agent of the present invention and a commercially available cleaning agent Using a horizontal injection molding machine (N20C, manufactured by Nippon Steel Co., Ltd.) with a clamping pressure of 20 tons, the cleaning agent of the present invention and a commercially available cleaning agent A performance comparison experiment was performed as follows. In addition, (I) of Example 9 was used for the cleaning agent of the present invention.
(1) Put 100g of polyethylene (Nippon Polypro Co., Ltd. product, Novatec LJ603) colored base material into a hopper, and put the product (12g including 2 side gates, product weight and runner included) Three-shot molding is performed, and after completion, weighing and injection are repeated to discharge all the resin material in the molding machine.
(2) Next, a predetermined weight of the cleaning agent is charged from the hopper. At this time, the cleaning agent is introduced in an amount that does not complete the cleaning of the molding machine for comparison.
(3) Weighing with the injection molding machine manually, repeat injection, and discharge all cleaning agent in the molding machine. The back pressure applied during measurement is preferably 15 to 30%.
(4) After that, polypropylene natural material (transparent) (San Aroma Co., Ltd. product, Sun Aroma PM940M) is put into the hopper and molded, and the amount of polypropylene (PP) until the molded product becomes transparent and so on Measure the time required for.

実験結果を下表にまとめて示した。   The experimental results are summarized in the table below.

本発明の洗浄剤 市販品A
洗浄剤の投入量 50g 50g
透明になるまでのPPの量 187g 459g
同所要時間 7分 21分
(註)市販品A : アサクリン、タイプU(旭化成ケミカルズ(株)製品)
Commercial detergent A of the present invention
Detergent input 50g 50g
PP amount until clear 187g 459g
Time required: 7 minutes 21 minutes (註) Commercial product A: Asacrine, Type U (product of Asahi Kasei Chemicals Corporation)

Claims (16)

天然ガラス焼成発泡体を含むプラスチック成形機用洗浄剤。   Cleaner for plastic molding machine containing natural glass fired foam. 天然ガラス焼成発泡体と熱可塑性プラスチックを含む請求項1記載のプラスチック成形機の洗浄剤。   The cleaning agent for a plastic molding machine according to claim 1, comprising a natural glass fired foam and a thermoplastic. 更に酸化防止剤と界面活性剤を含む請求項2記載のプラスチック成形機の洗浄剤。   The cleaning agent for a plastic molding machine according to claim 2, further comprising an antioxidant and a surfactant. 更に有機系発泡剤を含む請求項3記載のプラスチック成形機の洗浄剤。   The cleaning agent for a plastic molding machine according to claim 3, further comprising an organic foaming agent. 更に滑剤を含む請求項3記載のプラスチック成形機の洗浄剤。   The cleaning agent for a plastic molding machine according to claim 3, further comprising a lubricant. 天然ガラス焼成発泡体がガラス質火山岩またはガラス質火山砕屑物の焼成発泡体である請求項1または2記載の洗浄剤。   The cleaning agent according to claim 1 or 2, wherein the natural glass fired foam is a fired foam of glassy volcanic rock or glassy volcanic debris. ガラス質火山岩の焼成発泡体がパーライトである請求項6記載の洗浄剤。   The cleaning agent according to claim 6, wherein the fired foam of glassy volcanic rock is pearlite. ガラス質火山砕屑物の焼成発泡体がシラスバルーンである請求項6記載の洗浄剤。   The cleaning agent according to claim 6, wherein the fired foam of the glassy volcanic debris is a shirasu balloon. 熱可塑性プラスチックがポリオレフィン系樹脂または芳香族系樹脂である請求項2記載の洗浄剤。   The cleaning agent according to claim 2, wherein the thermoplastic plastic is a polyolefin resin or an aromatic resin. ポリオレフィン系樹脂がポリエチレン樹脂またはポリプロピレン樹脂である請求項9記載の洗浄剤。   The cleaning agent according to claim 9, wherein the polyolefin resin is a polyethylene resin or a polypropylene resin. 芳香族系樹脂がポリカーボネート樹脂、ポリスチレン樹脂またはポリアミド樹脂である請求項9記載の洗浄剤。   The cleaning agent according to claim 9, wherein the aromatic resin is a polycarbonate resin, a polystyrene resin, or a polyamide resin. 熱可塑性プラスチック100重量部に対して天然ガラス焼成発泡体5〜30重量部、酸化防止剤0.1〜5重量部、界面活性剤0.1〜5重量部を混合した請求項2記載のプラスチック成形機の洗浄剤。   The plastic according to claim 2, wherein 5 to 30 parts by weight of a natural glass fired foam, 0.1 to 5 parts by weight of an antioxidant and 0.1 to 5 parts by weight of a surfactant are mixed with 100 parts by weight of the thermoplastic. Cleaning agent for molding machines. 更に有機系発泡剤0.1〜5重量部を混合した請求項12記載のプラスチック成形機の洗浄剤。   The cleaning agent for a plastic molding machine according to claim 12, further comprising 0.1 to 5 parts by weight of an organic foaming agent. 更に滑剤0.05〜1重量部を混合した請求項12記載のプラスチック成形機の洗浄剤。   Furthermore, the cleaning agent of the plastic molding machine of Claim 12 which mixed 0.05-1 weight part of lubricants. プラスチック成形機が押出成形機、射出成形機またはブロー成形機である請求項1または2記載の洗浄剤。   The cleaning agent according to claim 1 or 2, wherein the plastic molding machine is an extrusion molding machine, an injection molding machine or a blow molding machine. 請求項1または2記載の洗浄剤で発泡剤を含まないもので洗浄後、更に発泡剤で洗浄するプラスチック成形機の洗浄方法。
A cleaning method for a plastic molding machine, wherein the cleaning agent according to claim 1 or 2 does not contain a foaming agent and is then cleaned with a foaming agent.
JP2006134294A 2005-05-13 2006-05-12 Detergent for plastic molding machine Pending JP2006341598A (en)

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WO2009110216A1 (en) * 2008-03-05 2009-09-11 ダイセルポリマー株式会社 Resin composition for cleaning
JP2010125663A (en) * 2008-11-26 2010-06-10 Asahi Kasei Chemicals Corp Detergent
WO2010103601A1 (en) * 2009-03-10 2010-09-16 ダイセルポリマー株式会社 Resin composition for cleaning of resin molding machines
JP2011148175A (en) * 2010-01-21 2011-08-04 Tokyo Printing Ink Mfg Co Ltd Detergent for molding machine
JP2012158115A (en) * 2011-02-01 2012-08-23 Daicel Polymer Ltd Thermoplastic resin composition for cleaning molding machine
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WO2009110216A1 (en) * 2008-03-05 2009-09-11 ダイセルポリマー株式会社 Resin composition for cleaning
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JP2017057376A (en) * 2013-12-23 2017-03-23 イメリーズ ミネラルズ リミテッド Cleansing compositions
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