JP5108483B2 - Method for producing dental impression film - Google Patents
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- JP5108483B2 JP5108483B2 JP2007311652A JP2007311652A JP5108483B2 JP 5108483 B2 JP5108483 B2 JP 5108483B2 JP 2007311652 A JP2007311652 A JP 2007311652A JP 2007311652 A JP2007311652 A JP 2007311652A JP 5108483 B2 JP5108483 B2 JP 5108483B2
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Description
本発明は、材質の異なる２種の歯科用印象材料を重ね合わせる連合印象に用いる歯科印象用フィルムの製造方法に関するものである。 The present invention relates to a method for producing a dental impression film used for a combined impression in which two types of dental impression materials of different materials are overlaid.
従来から、歯冠修復物を作製する場合、弾性印象材による印象採得する方法が一般的に行われている。通常の印象材料としては、アルギン酸塩の可溶性塩を主成分とする印象材（アルジネート印象材）、シリコーンゴムを主成分とする精密印象材（シリコーン印象材）などが知られている。
これらの印象材の主な特徴を比較すると、シリコーン印象材を用いた場合は、アルジネート印象材を用いた場合よりも精密な印象採得が可能であるといえるが、シリコーン印象材はアルジネート印象材よりも価格が数倍以上するため、経済性の面を考慮するとシリコーン印象材を多量に使用することは難しい。したがって、シリコーン印象材の使用量をできる限り少なくすればコストダウンを図ることができる。
Conventionally, when producing a restoration of a crown, a method of taking an impression using an elastic impression material is generally performed. As an ordinary impression material, an impression material (alginate impression material) mainly composed of a soluble salt of alginate, a precision impression material (silicone impression material) mainly composed of silicone rubber, and the like are known.
Comparing the main characteristics of these impression materials, it can be said that when using a silicone impression material, it is possible to obtain a more precise impression than when using an alginate impression material, but a silicone impression material is an alginate impression material. Since the price is several times higher than that, it is difficult to use a large amount of the silicone impression material in consideration of the economical aspect. Therefore, the cost can be reduced by reducing the amount of the silicone impression material used as much as possible.
一方、２種の歯科用印象材料を重ね合わせる連合印象としては、例えば、寒天・アルジネート連合印象が一般的に知れている。その特徴としては、両者とも多量の水分を含んでいることである。このため、印象撤去後歯型材の注入が遅れると、水分の蒸発に伴う収縮により印象が変形してしまうという問題がある。また、寒天とアルジネートの両者間の良好な接着が重要なポイントとなるが、未硬化の２種の材料を重ね合わせる方法であるため、両者が十分な流動性を有する時期に圧接することが必要となる。しかし、印象採得する領域が広範囲になる場合には、各印象材の硬化タイミングを合わせることは非常に困難であるといえる。 On the other hand, for example, an agar / alginate combined impression is generally known as a combined impression in which two kinds of dental impression materials are superimposed. Its feature is that both contain a large amount of moisture. For this reason, if the injection of the tooth mold material is delayed after the impression is removed, there is a problem that the impression is deformed due to shrinkage accompanying evaporation of moisture. In addition, good adhesion between both agar and alginate is an important point, but because it is a method of overlaying two uncured materials, it is necessary to press-contact when both have sufficient fluidity It becomes. However, it can be said that it is very difficult to match the curing timings of the impression materials when the impression acquisition area is wide.
そこで、本願出願人は、従来の連合印象では考えられなかった材質の異なる２種の歯科用印象材料を組合せることに着目し、両者の接合を可能にする歯科印象用フィルムを提供すること、また歯科印象用フィルムを介在させることにより各印象材の硬化タイミングを合わせる必要性がなく且つ精密な印象を安価に採得する印象採得方法を提供することを目的とし、以下の発明について特許出願を行っている（特願２００７−２８４４０５号）。 Therefore, the present applicant pays attention to combining two kinds of dental impression materials with different materials, which could not be considered in the conventional combined impression, and provides a dental impression film that enables the bonding of both. Further, it is not necessary to match the timing of curing of each impression material by interposing a dental impression film, and an object is to provide an impression taking method for obtaining a precise impression at low cost. (Japanese Patent Application No. 2007-284405).
歯科印象用フィルムは、材質の異なる２種の歯科用印象材料を重ね合わせる連合印象に用いる歯科印象用フィルムにおいて、前記歯科印象用フィルムの両面にそれぞれ硬化した各歯科用印象材料との間で接着能を有する層を積層する又は接着能を有する突起物を取り付けることを特徴とする。また、前記歯科用印象材料が、シリコーン印象材とアルジネート印象材の組み合わせからなることを特徴とする。また、図１に示すように前記歯科印象用フィルムが、ポリエチレンフィルム１０の両面にシリコーン印象材及びアルジネート印象材との間で接着能を有するポリエチレン・ポリエステルフィルム２０を熱圧着により積層したことを特徴とする。 The dental impression film is a dental impression film used for a combined impression in which two kinds of dental impression materials of different materials are overlapped, and is bonded to each cured dental impression material on both sides of the dental impression film. It is characterized in that a layer having a function is laminated or a projection having an adhesive function is attached. The dental impression material is a combination of a silicone impression material and an alginate impression material. Moreover, as shown in FIG. 1, the said film for dental impressions laminated | stacked the polyethylene polyester film 20 which has adhesiveness between the silicone impression material and the alginate impression material on both surfaces of the polyethylene film 10 by thermocompression bonding. And
しかし、上記歯科印象用フィルムについては、従来に存在しない新規の商品であるため、量産時における商品の製造方法を確立すると共に、品質が安定した商品を安価に供給できるようにすることが必要である。 However, since the above-mentioned film for dental impression is a new product that does not exist in the past, it is necessary to establish a method for manufacturing a product at the time of mass production and to supply a product with stable quality at a low cost. is there.
そこで、本発明は、材質の異なる２種の歯科用印象材料を重ね合わせる連合印象に用いる歯科印象用フィルムを製造する方法を提供することを目的とする。 Then, an object of this invention is to provide the method of manufacturing the film for dental impressions used for the combined impression which piles up two types of dental impression materials from which a material differs.
上記課題を解決するために、請求項１に記載の発明は、樹脂製フィルムの両面にそれぞれ樹脂製不織布を重ね合わせて３層に形成し、最下層に位置する前記樹脂製不織布の下側にバージンパルプを重ねて敷いた後、それらをロールに巻きつけて全体をロール状に形成し、次いで加熱手段により所定温度で加熱して前記樹脂製フィルムの両面に前記樹脂製不織布を熱接着させることを特徴とする。 In order to solve the above-mentioned problem, the invention according to claim 1 is formed by superposing resin nonwoven fabrics on both sides of a resin film to form three layers, respectively, on the lower side of the resin nonwoven fabric located in the lowermost layer. After laying the virgin pulp on top of each other, wrap them around a roll to form the whole into a roll shape, and then heat the resin nonwoven fabric to both sides of the resin film by heating at a predetermined temperature with heating means It is characterized by.
また、請求項２に記載の発明は、請求項１に記載の前記樹脂製フィルムがポリエチレンフィルムであり、前記樹脂製不織布がポリエチレン・ポリエステルの２重構造繊維であることを特徴とする。 The invention described in claim 2 is characterized in that the resin film according to claim 1 is a polyethylene film, and the resin nonwoven fabric is a double structure fiber of polyethylene / polyester.
また、請求項３に記載の発明は、請求項１又は２に記載の前記加熱手段による加熱温度を前記樹脂製フィルムの耐熱温度以上で１１５〜１３５℃の範囲内に設定したことを特徴とする。 Moreover, invention of Claim 3 set the heating temperature by the said heating means of Claim 1 or 2 in the range of 115-135 degreeC more than the heat-resistant temperature of the said resin-made films, It is characterized by the above-mentioned. .
また、請求項４に記載の発明は、請求項１乃至３に記載の前記加熱手段が高圧蒸気滅菌器であることを特徴とする。 The invention described in claim 4 is characterized in that the heating means described in claims 1 to 3 is a high-pressure steam sterilizer.
以上のように、本発明によれば、樹脂製フィルムの両面に樹脂製不織布をそれが有する不織布の風合いを残しつつ簡単且つ確実に熱接着できるので、量産時においても商品の製造を容易にすることができ、品質が安定した商品を安価に供給することができる。 As described above, according to the present invention, a resinous nonwoven fabric can be easily and reliably heat-bonded on both sides of a resinous film while leaving the texture of the nonwoven fabric that it has, making it easy to manufacture products even during mass production. It is possible to supply products with stable quality at low cost.
以下、本発明の実施例について説明する。
本発明は、樹脂製フィルムの両面にそれぞれ樹脂製不織布を重ね合わせて３層に形成し、最下層に位置する前記樹脂製不織布の下側にバージンパルプを重ねて敷いた後、それらをロールに巻きつけて全体をロール状に形成し、次いで加熱手段により所定温度で加熱して前記樹脂製フィルムの両面に前記樹脂製不織布を熱接着させる歯科印象用フィルムの製造方法である。
尚、本発明は以下の実施例に限定されるものではなく、各構成要件の具体的内容については本発明の趣旨に合致する範囲内で適宜変更することができる。
Examples of the present invention will be described below.
In the present invention, resin nonwoven fabrics are laminated on both sides of a resin film to form three layers, and virgin pulp is laid on the lower side of the resin nonwoven fabric located at the bottom layer, and then placed on a roll. It is a method for producing a dental impression film in which the whole is wound to form a roll, and then heated at a predetermined temperature by a heating means to thermally bond the resin nonwoven fabric to both surfaces of the resin film.
It should be noted that the present invention is not limited to the following examples, and the specific contents of each constituent element can be changed as appropriate within the scope consistent with the gist of the present invention.
（製造工程１）
先ず、樹脂製フィルムの両面にそれぞれ樹脂製不織布を重ね合わせて３層に形成する。ここで、樹脂製フィルムとしてポリエチレンフィルム、樹脂製不織布としてポリエチレン・ポリエステルの２重構造繊維を採用することが好ましい。
ポリエチレンフィルムは、例えば日本紙パック株式会社製のポリエチレンフィルム（商品名「抗菌ワンラップ（登録商標）２２０ｍ」、耐熱温度１１０℃）を採用する。
また、ポリエチレン・ポリエステルの２重構造繊維は、例えばユニチカ株式会社製のオレフィン系スパンボンド不織布（商品名「エルベス（登録商標）」）を採用する。この素材は、芯鞘構造（芯：ＰＥＴ、鞘：ポリエチレン）のフィラメントからなるスパンボンド不織布であり、ヒートシールが容易、接着強力が強力、高強力な素材、食品包装をはじめ幅広い包装資材での使用が可能等の特長を有している。
樹脂製フィルムと樹脂製不織布の大きさについては、樹脂製不織布の幅を樹脂製フィルムの幅よりも寸法を短く設定しておく。これにより、両者を重ね合わせた際に樹脂製不織布が樹脂製フィルムの内側に完全に収まり接着不良を防止することができる。
(Manufacturing process 1)
First, resin nonwoven fabrics are superimposed on both sides of a resin film to form three layers. Here, it is preferable to employ a polyethylene film as the resin film and a polyethylene / polyester double structure fiber as the resin nonwoven fabric.
As the polyethylene film, for example, a polyethylene film manufactured by Nippon Paper Pack Co., Ltd. (trade name “Antimicrobial One Wrap (registered trademark) 220 m”, heat resistant temperature 110 ° C.) is employed.
In addition, the double structure fiber of polyethylene / polyester employs, for example, an olefin-based spunbond nonwoven fabric (trade name “Elves (registered trademark)”) manufactured by Unitika Ltd. This material is a spunbonded nonwoven fabric consisting of filaments with a core-sheath structure (core: PET, sheath: polyethylene). It has features such as being usable.
As for the sizes of the resin film and the resin nonwoven fabric, the width of the resin nonwoven fabric is set shorter than the width of the resin film. Thereby, when both are overlap | superposed, the resin nonwoven fabric can be completely settled inside the resin film, and adhesion failure can be prevented.
（製造工程２）
次に、最下層に位置する樹脂製不織布の下側にバージンパルプを重ねて敷いた後、それらをロールに巻きつけて全体をロール状に形成する。
このようにバージンパルプを重ねて敷くことにより、樹脂製不織布の表面を保護するのと同時に樹脂製不織布に不純物が付着するのを防止することができる。また、ロールに巻きつけて全体をロール状に形成することにより、樹脂製フィルムと樹脂製不織布との間に不均一な圧力がかかるのを防止することができるので、樹脂製フィルムの両面に樹脂製不織布をそれが有する不織布の風合いを残しつつ熱接着することが可能になる。
また、全体をロール状にした際、紐や止め具などを用いてその状態を保持できるようにしておく。バージンパルプの大きさについては、バージンパルプの幅を樹脂製フィルムの幅よりも寸法を長く設定しておく。また、樹脂製フィルムと樹脂製不織布とバージンパルプについてそれぞれ長尺製品を採用する場合は、ロール状にした後に適当な長さに切断しておく。
(Manufacturing process 2)
Next, after laying virgin pulp on the lower side of the resin nonwoven fabric positioned in the lowermost layer, the virgin pulp is wound around a roll to form the whole in a roll shape.
By thus laying the virgin pulp on top of each other, it is possible to protect the surface of the resin nonwoven fabric and at the same time prevent impurities from adhering to the resin nonwoven fabric. In addition, it is possible to prevent uneven pressure from being applied between the resin film and the resin nonwoven fabric by wrapping it around a roll to form a roll, so that the resin is applied to both surfaces of the resin film. The non-woven fabric can be thermally bonded while leaving the texture of the non-woven fabric it has.
Moreover, when the whole is made into a roll shape, the state can be maintained using a string, a stopper, or the like. Regarding the size of the virgin pulp, the width of the virgin pulp is set longer than the width of the resin film. Moreover, when employ | adopting a long product about a resin film, a resin nonwoven fabric, and a virgin pulp, respectively, after making it roll shape, it cut | disconnects in suitable length.
（製造工程３）
最後に、加熱手段により所定温度で加熱して前記樹脂製フィルムの両面に前記樹脂製不織布を熱接着させる。
加熱手段による加熱温度については、樹脂製フィルムの耐熱温度以上で１１５〜１３５℃の範囲内に設定することが好ましい。
具体的には、ポリエチレンフィルムとして日本紙パック株式会社製のポリエチレンフィルム（商品名「抗菌ワンラップ（登録商標）２２０ｍ」、耐熱温度１１０℃）を採用し、ポリエチレン・ポリエステルの２重構造繊維としてユニチカ株式会社製のオレフィン系スパンボンド不織布（商品名「エルベス（登録商標）」）を採用した場合、加熱温度を１１７〜１２１℃に設定して５分間程度加熱するのが適切である。
ここで、加熱手段については、高圧蒸気滅菌器を使用することが好ましい。この高圧蒸気滅菌器とは、大気圧を超える圧力のもとに飽和蒸気滅菌する器具のことをいい、所定の滅菌温度及び滅菌時間を設定することにより、樹脂製フィルムの両面に樹脂製不織布を熱接着させる歯科印象用フィルムの製造に最適な加熱手段となる。
なお、何重にも太くロール状にしたものを加熱する場合、加熱手段の載置面に接する下端部分にその物の自重がかかり熱圧着をおこすおそれがあるので、ロールを浮かした状態で保持できるスタンドを使用するとよい。
(Manufacturing process 3)
Finally, the resin nonwoven fabric is thermally bonded to both surfaces of the resin film by heating at a predetermined temperature by a heating means.
About the heating temperature by a heating means, it is preferable to set in the range of 115-135 degreeC above the heat resistant temperature of a resin film.
Specifically, a polyethylene film manufactured by Nippon Paper Pack Co., Ltd. (trade name “Antimicrobial One Wrap (registered trademark) 220 m”, heat-resistant temperature 110 ° C.) is used as the polyethylene film, and Unitika Ltd. is used as the double structure fiber of polyethylene / polyester. When a company-made olefin-based spunbonded nonwoven fabric (trade name “Elves (registered trademark)”) is employed, it is appropriate to set the heating temperature to 117 to 121 ° C. and heat for about 5 minutes.
Here, it is preferable to use a high-pressure steam sterilizer for the heating means. This high-pressure steam sterilizer refers to a device that saturates with saturated steam under a pressure exceeding atmospheric pressure. By setting a predetermined sterilization temperature and sterilization time, a resin nonwoven fabric is placed on both sides of the resin film. It becomes an optimum heating means for manufacturing a dental impression film to be thermally bonded.
In addition, when heating a roll that is thick and thick, hold the roll in a floating state, because the weight of the object may be applied to the lower end of the heating means in contact with the mounting surface, causing thermocompression bonding. Use a stand that can.
１０ ポリエチレンフィルム
２０ ポリエチレン・ポリエステルフィルム
１００ シリコーン印象材
２００ アルジネート印象材
10 Polyethylene film 20 Polyethylene / polyester film 100 Silicone impression material 200 Alginate impression material
Claims (4)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007311652A JP5108483B2 (en) | 2007-11-30 | 2007-11-30 | Method for producing dental impression film |
| PCT/JP2008/065053 WO2009057371A1 (en) | 2007-10-31 | 2008-08-13 | Film for dental impression and process for producing film for dental impression |
| EP08845308A EP2113222A4 (en) | 2007-10-31 | 2008-10-28 | Film for dental impression and method of producing film for dental impression |
| PCT/JP2008/069547 WO2009057591A1 (en) | 2007-10-31 | 2008-10-28 | Film for dental impression and method of producing film for dental impression |
| US12/530,197 US20100119988A1 (en) | 2007-10-31 | 2008-10-28 | Dental impression film, and a method of manufacturing the dental impression film |
| CA2672305A CA2672305C (en) | 2007-10-31 | 2008-10-28 | Dental impression film, and a method of manufacturing the dental impression film |
| AU2008319910A AU2008319910B2 (en) | 2007-10-31 | 2008-10-28 | Dental impression film, and a method of manufacturing the dental impression film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007311652A JP5108483B2 (en) | 2007-11-30 | 2007-11-30 | Method for producing dental impression film |
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| Publication Number | Publication Date |
|---|---|
| JP2009131536A JP2009131536A (en) | 2009-06-18 |
| JP5108483B2 true JP5108483B2 (en) | 2012-12-26 |
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| JP2007311652A Active JP5108483B2 (en) | 2007-10-31 | 2007-11-30 | Method for producing dental impression film |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1042994A4 (en) * | 1998-09-24 | 2006-08-09 | Nissan Digital Process Ltd | Tooth shape impression recording member and method of using it |
| JP4111250B1 (en) * | 2007-10-31 | 2008-07-02 | 康弘 福原 | Dental impression film and impression taking method using the same |
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| JP2009131536A (en) | 2009-06-18 |
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