JP4729668B2 - Heat treatment device - Google Patents

Heat treatment device Download PDF

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JP4729668B2
JP4729668B2 JP2005070837A JP2005070837A JP4729668B2 JP 4729668 B2 JP4729668 B2 JP 4729668B2 JP 2005070837 A JP2005070837 A JP 2005070837A JP 2005070837 A JP2005070837 A JP 2005070837A JP 4729668 B2 JP4729668 B2 JP 4729668B2
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heat
heat generating
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generating member
recording medium
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公資 船瀬
和弘 小林
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Noritsu Precision Co Ltd
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NK Works Co Ltd
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Description

本発明は、記録媒体の被処理面と離間配置され、前記記録媒体を加熱する発熱部材と、前記発熱部材から放射される熱エネルギーを前記被処理面に集めるリフレクタとを備えた加熱処理装置に関する。 The present invention relates to a heat treatment apparatus provided with a heat generating member that heats the recording medium, and a reflector that collects thermal energy radiated from the heat generating member on the surface to be processed. .

この種の加熱処理装置に関する従来技術の例を示す下記の特許文献１には、２本のハロゲンランプ（発熱部材）を記録媒体の被加熱面に沿って互いに離間配置することで、記録媒体上のより広い面積を加熱処理可能とした加熱処理装置が記されている。   In Patent Document 1 below showing an example of the prior art relating to this type of heat treatment apparatus, two halogen lamps (heat generating members) are arranged apart from each other along the surface to be heated of the recording medium. The heat processing apparatus which can heat-process the wider area is described.

また、別の従来技術の例を示す下記の特許文献２には、熱エネルギー分布特性に指向性のある発熱部材を用いた加熱処理装置が記されている。しかし、ここでは、発熱部材における特に高い発熱強度を示す主熱放射面、すなわち発熱部材の長方形断面の長辺が記録媒体の被処理面と対向するように、言い換えれば、発熱部材が形成する高放射熱エネルギー分布領域が被処理面と交差するように配置する考え方が記されている。   Patent Document 2 below showing another example of the prior art describes a heat treatment apparatus using a heat generating member having directivity in thermal energy distribution characteristics. However, here, the main heat radiation surface showing a particularly high heat generation intensity in the heat generating member, that is, the long side of the rectangular cross section of the heat generating member is opposed to the processing surface of the recording medium, in other words, the high temperature formed by the heat generating member. The concept of arranging the radiant heat energy distribution region so as to intersect the surface to be processed is described.

特開２０００−２１１１１６号公報（段落番号００２５〜００２６、図１、図２、図５）Japanese Unexamined Patent Publication No. 2000-21111 (paragraph numbers 0025 to 0026, FIG. 1, FIG. 2, FIG. 5) 特開２００２−３１９６９号公報（段落番号００２５、図２）JP 2002-31969 (paragraph number 0025, FIG. 2)

しかし、特許文献１に記された加熱処理装置では、加熱処理可能な面積を広げるために複数の発熱部材を用いる必要があるという問題があった。
また、特許文献２に記された加熱処理装置では、発熱部材が形成する高放射熱エネルギー分布領域が記録媒体の被処理面に向かって垂直に延びているために加熱処理可能な面積が狭く、しかも、熱放射面と対向する記録媒体の領域とその周辺部とで温度差が生じるために、記録媒体が未乾燥の印画紙でこれを加熱によって乾燥処理する場合などは、印画紙の乳剤面に火脹れなどの欠点が生じる虞がある。さらに、発熱部材の有する２つの主熱放射面の一方のみが記録媒体の被処理面と対向するため、他方の主熱放射面から発される熱エネルギーはあまり有効に利用されていなかった。 However, the heat treatment apparatus described in Patent Document 1 has a problem that it is necessary to use a plurality of heat generating members in order to widen the heat treatable area.
Further, in the heat treatment apparatus described in Patent Document 2, the high radiant heat energy distribution region formed by the heat generating member extends vertically toward the surface to be processed of the recording medium. In addition, since the temperature difference occurs between the area of the recording medium facing the heat radiation surface and its peripheral part, the recording medium is an undried photographic paper, and when this is dried by heating, the emulsion surface of the photographic paper There is a possibility that defects such as fire may occur. Furthermore, since only one of the two main heat radiation surfaces of the heat generating member is opposed to the surface to be processed of the recording medium, the heat energy emitted from the other main heat radiation surface has not been used effectively.

したがって、本発明の目的は、上に例示した従来技術による加熱処理装置の持つ前述した欠点に鑑み、単一の発熱部材を用いながら大面積の被加熱面を出来るだけ均一な温度条件で加熱処理可能な加熱処理装置を提供することにある。   Therefore, in view of the above-mentioned drawbacks of the heat treatment apparatus according to the prior art exemplified above, the object of the present invention is to heat-treat a large surface to be heated under a temperature condition as uniform as possible while using a single heating member. An object of the present invention is to provide a heat treatment apparatus that can be used.

本発明の第１の特徴構成は、記録媒体を加熱するために、前記記録媒体の被処理面と離間配置された発熱部材と、前記発熱部材から放射される熱エネルギーを前記被処理面に集めるリフレクタとを備える加熱処理装置であって、
前記発熱部材を、その主発熱強度分布が互いに交差する長軸と短軸とを有する指向性の発熱部材で構成してあり、且つ、前記発熱部材を前記主発熱強度分布の前記長軸が前記被処理面に沿って延びるように配置してあり、
前記リフレクタが前記主発熱強度分布の前記長軸に沿って延出された第１反射面と、前記主発熱強度分布の前記短軸に沿って延出された第２反射面とを有する点にある。 According to a first characteristic configuration of the present invention, in order to heat a recording medium, a heating member spaced from the surface to be processed of the recording medium and heat energy radiated from the heating member are collected on the surface to be processed. A heat treatment apparatus comprising a reflector ,
The heat generating member is composed of a directional heat generating member having a major axis and a minor axis whose main heat intensity distribution intersects each other , and the heat generating member has the major axis of the main heat intensity distribution. Thea arranged to extend along a surface to be processed is,
The reflector has a first reflecting surface that extends along the major axis of the main heat generation intensity distribution and a second reflecting surface that extends along the minor axis of the main heat generation intensity distribution. is there.

したがって、従来技術による発熱部材の配置方法とは全く異なり、本発明の第１の特徴構成による加熱処理装置では、主発熱強度分布の長軸が被処理面に沿って延びているので、発熱部材から放射される熱エネルギーが記録媒体の被処理面の広い面積をカバーし、しかも、放射熱エネルギー量の大きな領域である主発熱強度分布ではなく比較的放射熱エネルギー量の小さな発熱部材の面が被処理面と対向することになる。その結果、記録媒体が広い面積にわたって穏やかで且つ均一な温度条件で加熱され、記録媒体の局部が過熱される等の現象が抑制され、高品質の記録媒体が得られる。特に、記録媒体が未乾燥の印画紙であって、これを乾燥処理する場合でも、印画紙の乳剤面に火脹れなどの欠点が生じる虞が効果的に抑制された。発熱部材を主発熱強度分布が被処理面に沿って延びるように配置するための具体的な方法としては、例えば、発熱部材における特に高い発熱強度を示す主熱放射面が被処理面と対向せず、主熱放射面の延長線が被処理面と交差するように配置すれば良い。また、リフレクタが主発熱強度分布の長軸に沿って延出された第１反射面と、主発熱強度分布の短軸に沿って延出された第２反射面とを有するので、発熱部材から被処理面と略平行に最も遠くまで放射される放射エネルギーは、被処理面と交差する第２反射面によって第１反射面の中央側に向けて反射されるので、第１反射面の範囲内を略均一な放射エネルギー分布状態とすることが可能となる。 Therefore, unlike the heat generating member arrangement method according to the prior art, in the heat treatment apparatus according to the first characteristic configuration of the present invention, the major axis of the main heat generation intensity distribution extends along the surface to be treated. The heat energy radiated from the cover covers a large area of the processing surface of the recording medium, and the surface of the heat generating member with a relatively small amount of radiant heat energy is not the main heat intensity distribution, which is a region with a large amount of radiant heat energy. It faces the surface to be processed. As a result, the recording medium is heated over a wide area under a gentle and uniform temperature condition, and a phenomenon such as overheating of a local portion of the recording medium is suppressed, and a high-quality recording medium can be obtained. In particular, even when the recording medium is undried photographic paper, and this is subjected to a drying process, the risk of causing defects such as burning on the emulsion surface of the photographic paper is effectively suppressed. As a specific method for arranging the heat generating member so that the main heat generation intensity distribution extends along the surface to be processed, for example, a main heat radiation surface showing a particularly high heat generation intensity in the heat generating member is opposed to the surface to be processed. Instead, it may be arranged so that the extension line of the main heat radiation surface intersects the surface to be processed. In addition, since the reflector has a first reflection surface extending along the major axis of the main heat generation intensity distribution and a second reflection surface extending along the minor axis of the main heat generation intensity distribution, The radiant energy radiated to the farthest substantially parallel to the surface to be processed is reflected toward the center side of the first reflecting surface by the second reflecting surface intersecting the surface to be processed. Can be made into a substantially uniform radiant energy distribution state.

本発明の第２の特徴構成は、前記発熱部材は長辺と短辺とを備える断面形状の発熱素子を有し、前記発熱素子は前記長辺の延長線が前記被処理面と交差するように配置してある点にある。
したがって、本発明の第２の特徴構成による加熱処理装置では、発熱素子の長辺が主熱放射面となるので、発熱素子を長辺の延長線が被処理面と交差するように配置すれば、高放射熱エネルギー分布領域が被処理面に沿って延びることとなり、本発明の効果が奏されるように発熱部材を配置する作業が容易である。そして、発熱部材が長方形断面を備えた素子の場合には、発熱部材の有する２つの主熱放射面の双方から発される熱エネルギーが熱処理に対して有効に利用されることになる。また、長辺と短辺の比を適宜に変更するによって、処理対象である記録媒体の特性に応じて、高放射熱エネルギー分布領域と低放射熱エネルギー分布領域との間の放射熱エネルギー量の差異を自在に調整することが可能である。 According to a second characteristic configuration of the present invention, the heat generating member includes a heat generating element having a cross-sectional shape having a long side and a short side, and the heat generating element has an extension line of the long side intersecting the surface to be processed. It is in the point arranged in.
Therefore, in the heat treatment apparatus according to the second characteristic configuration of the present invention, since the long side of the heating element is the main heat radiation surface, if the heating element is arranged so that the extended line of the long side intersects the surface to be processed. The high radiant heat energy distribution region extends along the surface to be processed, and the work of arranging the heat generating member is easy so that the effect of the present invention is achieved. When the heat generating member is an element having a rectangular cross section, the heat energy emitted from both of the two main heat radiation surfaces of the heat generating member is effectively used for the heat treatment. In addition, by appropriately changing the ratio of the long side to the short side, the amount of radiant heat energy between the high radiant heat energy distribution region and the low radiant heat energy distribution region is changed according to the characteristics of the recording medium to be processed. The difference can be adjusted freely.

本発明の第３の特徴構成は、前記発熱部材として赤外線ランプヒータを用いている点にある。
したがって、発明の第３の特徴構成による加熱処理装置では、赤外線ランプヒータから発される赤外線の作用で、印画紙の表層部のみが先行して加熱されることなく、印画紙の内部も表層部と並行してむら無く加熱されるので、反りの少ない写真プリントが得られる。また、発熱部材は赤外線を主要な放射エネルギーとするので、光の反射率が高い鏡面状のリフレクタによって熱エネルギーを効果的に被処理面に集めることができ、リフレクタを用いることで放射エネルギーを有効に記録媒体の熱処理に用いることができる。
尚、湿潤状態の記録媒体を乾燥させることを目的とする加熱処理装置であれば、赤外線の中でも特に水分に吸収され易い波長（２〜４μｍ）を持つ中赤外線を主として放射する中赤外線ランプヒータを発熱部材として用いると更に効果的である。 The third characteristic configuration of the present invention is that it have use an infrared lamp heater as the heating member.
Therefore, in the heat treatment apparatus according to the third characteristic configuration of the invention, only the surface layer portion of the photographic paper is not heated in advance by the action of infrared rays emitted from the infrared lamp heater, and the inside of the photographic paper is also the surface layer portion. Since it is heated evenly, a photographic print with less warpage can be obtained. In addition, since the heat generating member uses infrared as the main radiant energy, a mirror-like reflector with high light reflectivity can effectively collect thermal energy on the surface to be processed. By using the reflector, the radiant energy is effectively used. In addition, it can be used for heat treatment of recording media.
If the heat treatment apparatus is intended to dry a recording medium in a wet state, a mid-infrared lamp heater that mainly emits mid-infrared light having a wavelength (2 to 4 μm) that is particularly easily absorbed by moisture among infrared rays. It is more effective when used as a heat generating member.

本発明の第４の特徴構成は、前記リフレクタは、前記被処理面と対向するように記録媒体の幅方向と長手方向とに延びた前記第１反射面と、前記第１反射面の周辺部から前記被処理面と交差する方向に延びた前記第２反射面とを有する点にある。
したがって、本発明の第４の特徴構成による加熱処理装置では、発熱部材から被処理面と略平行に最も遠くまで放射される放射エネルギーは被処理面と交差する第２反射面によって第１反射面の中央側に向けて反射されるので、第１反射面の範囲内を略均一な放射エネルギー分布状態とすることが可能となる。そこで、第１反射面の形状寸法を適宜、発熱部材の主発熱強度分布の延長サイズを超えない範囲で可及的に大きく設定することで、十分に大きな面積の記録媒体領域を均一に加熱処理することができる。 The fourth characteristic configuration of the present invention, the reflector, the said first reflecting surface extending in the width direction and the longitudinal direction of the recording medium so as to face the surface to be treated peripheral portion of the first reflecting surface It is the in that it has a second reflecting surface extending in a direction intersecting with the treated surface from.
Therefore, in the heat treatment apparatus according to the fourth characteristic configuration of the present invention, the radiant energy radiated from the heat generating member to the farthest substantially parallel to the surface to be treated is reflected by the second reflecting surface intersecting the surface to be treated. Since the light is reflected toward the center of the first reflective surface, it is possible to obtain a substantially uniform radiant energy distribution within the range of the first reflective surface. Therefore, by appropriately setting the shape dimension of the first reflecting surface as much as possible within the range not exceeding the extension size of the main heat generation intensity distribution of the heat generating member, a sufficiently large recording medium region is uniformly heat-treated. can do.

本発明によるその他の特徴および利点は、以下図面を用いた実施形態の説明により明らかになるであろう。   Other features and advantages of the present invention will become apparent from the following description of embodiments using the drawings.

図１は、本発明による加熱処理装置の一つの実施形態を備えた写真プリント装置１の構成を示す概略図である。
この写真プリント装置１は、操作ステーション（不図示）と共に、デジタルミニラボとも称せられる写真処理システムの構成要素として用いられる。操作ステーションは、写真フィルムの撮影画像コマから撮影画像データを取得するフィルムスキャナ、及び、デジタルカメラ等に装着される半導体メモリやＣＤ−Ｒなどから画像データを取得するメディアリーダなどを備えている。 FIG. 1 is a schematic view showing a configuration of a photographic printing apparatus 1 provided with one embodiment of a heat treatment apparatus according to the present invention.
The photo printing apparatus 1 is used as a component of a photo processing system, which is also called a digital minilab, together with an operation station (not shown). The operation station includes a film scanner that obtains photographed image data from photographed image frames of a photographic film, a media reader that obtains image data from a semiconductor memory or a CD-R attached to a digital camera or the like.

写真プリント装置１は、印画紙Ｐに露光処理を施すプリンタ部２と露光処理済みの印画紙を現像処理するプロセッサ部３とからなる。
プリンタ部２では、２つの印画紙マガジン４に収納した印画紙ロールのいずれか一方から印画紙Ｐを引き出してシートカッタ５でプリントサイズに切断し、このように切断された印画紙Ｐに対し、バックプリント部６で色補正情報やコマ番号などのプリント処理情報を印画紙Ｐの裏面（基材面）に印字し、プリント露光部７で印画紙Ｐの乳剤面に撮影画像の露光を行い、プロセッサ部３に向けて搬送する。プリント露光部７には、副走査方向に搬送される印画紙Ｐに対して、主走査方向に沿って前述した操作ステーションから送られて来るプリントデータに基づいてＲ（赤）、Ｇ（緑）、Ｂ（青）の３原色のレーザ光線の照射を行うライン露光ヘッドが設けられている。 The photographic printing apparatus 1 includes a printer unit 2 that performs an exposure process on the photographic paper P and a processor unit 3 that develops the photographic paper that has been exposed.
In the printer unit 2, the photographic paper P is pulled out from one of the photographic paper rolls stored in the two photographic paper magazines 4 and cut into a print size by the sheet cutter 5. With respect to the photographic paper P thus cut, Print processing information such as color correction information and frame number is printed on the back surface (base material surface) of the photographic paper P by the back print unit 6, and the photographed image is exposed on the emulsion surface of the photographic paper P by the print exposure unit 7. It is transported toward the processor unit 3. The print exposure unit 7 receives R (red) and G (green) based on the print data sent from the operation station described above along the main scanning direction for the photographic paper P conveyed in the sub-scanning direction. A line exposure head for irradiating laser beams of the three primary colors B (blue) is provided.

プリンタ部２には、印画紙マガジン４から引き出された印画紙Ｐを、印画紙Ｐに対する前述した各種処理に合わせた搬送速度で搬送するための印画紙搬送機構８が敷設されている。印画紙搬送機構８は、多数の挟持搬送ローラ対、及び、印画紙搬送方向に関してプリント露光部７の前後に配置された２つのチャッカー式印画紙搬送ユニット８ａ，８ｂから構成されている。   The printer unit 2 is provided with a photographic paper transport mechanism 8 for transporting the photographic paper P drawn from the photographic paper magazine 4 at a transport speed adapted to the various processes described above for the photographic paper P. The photographic paper transport mechanism 8 includes a plurality of nipping and transporting roller pairs and two chucker type photographic paper transport units 8a and 8b arranged before and after the print exposure unit 7 in the photographic paper transport direction.

プロセッサ部３では、露光後の印画紙Ｐを処理槽ユニット９に送り込んで現像処理し、更に、乾燥処理部１０で乾燥処理を施す。処理槽ユニット９は、発色現像処理液を貯留する発色現像槽９ａと、漂白定着処理液を貯留する漂白定着槽９ｂと、安定処理液を貯留する安定槽９ｃを備えている。完成した写真プリントＰは、プロセッサ部３の上部に設けられた横送りコンベア１１によってソータ（不図示）の複数のトレイにオーダ単位で仕分けられた状態で集積される。   In the processor unit 3, the exposed photographic paper P is sent to the processing tank unit 9 for development processing, and further, drying processing is performed in the drying processing unit 10. The processing tank unit 9 includes a color developing tank 9a for storing a color developing processing liquid, a bleach-fixing tank 9b for storing a bleach-fixing processing liquid, and a stabilizing tank 9c for storing a stable processing liquid. The completed photographic prints P are collected in a state of being sorted in units of orders on a plurality of trays of a sorter (not shown) by a transverse feed conveyor 11 provided at the top of the processor unit 3.

乾燥処理部１０は、筐体状の乾燥ダクト１２、複数対のローラからなる搬送機構８ｃによって乾燥ダクト１２内で上向きに搬送される印画紙Ｐを乳剤面（被処理面の一例）側から加熱する加熱乾燥装置１３（加熱処理装置の一例）、加熱乾燥装置１３によって印画紙Ｐから生じる湿り空気を外部に排出するためのブロワー１４などを備える。ブロワー１４は乾燥ダクト１２の下方に配置されており、ブロワー１４が形成する空気流は、乾燥ダクト１２の下部開口部から進入して、乾燥ダクト１２内で生じる湿り空気を伴いつつ、乾燥ダクト１２の上部開口部から写真プリント装置１の機外に抜け出る。   The drying processing unit 10 heats the photographic paper P conveyed upward in the drying duct 12 from the emulsion surface (an example of the surface to be processed) by a casing-shaped drying duct 12 and a conveying mechanism 8c including a plurality of pairs of rollers. A heating / drying device 13 (an example of a heat treatment device), and a blower 14 for discharging the humid air generated from the photographic paper P by the heating / drying device 13 to the outside. The blower 14 is disposed below the drying duct 12, and the air flow formed by the blower 14 enters from the lower opening of the drying duct 12 and accompanies the humid air generated in the drying duct 12, while the drying duct 12. The photographic printing apparatus 1 comes out of the upper opening.

加熱乾燥装置１３は、図２に示すように、印画紙Ｐの幅方向に沿って且つ乳剤面と所定長さだけ離間して配置された中赤外線ランプヒータ１５（発熱部材の一例）、及び、中赤外線ランプヒータ１５から放射される熱エネルギーを印画紙Ｐの被処理面に集めるリフレクタ２０を有する。
中赤外線ランプヒータ１５は、炭素系材料を長辺１６ａと短辺１６ｂとを備える断面形状に成形して焼結した発熱素子１６と、発熱素子１６を包囲する透明石英管１７とを有し、水分に吸収され易い２〜４μｍの波長の中赤外線が発熱部材から放射する。 As shown in FIG. 2, the heating and drying device 13 includes a mid-infrared lamp heater 15 (an example of a heating member) disposed along the width direction of the photographic paper P and separated from the emulsion surface by a predetermined length, and A reflector 20 is provided that collects the thermal energy radiated from the mid-infrared lamp heater 15 on the treated surface of the photographic paper P.
The mid-infrared lamp heater 15 includes a heating element 16 formed by sintering a carbon-based material into a cross-sectional shape having a long side 16a and a short side 16b, and a transparent quartz tube 17 surrounding the heating element 16. Mid-infrared light having a wavelength of 2 to 4 μm, which is easily absorbed by moisture, is emitted from the heating member.

中赤外線ランプヒータ１５は、前述した断面形状のために、最も放射エネルギーが高い発熱強度分布を断面に沿って特定の角度方向に有する指向性の発熱部材となっている。すなわち、中赤外線ランプヒータ１５が発する放射エネルギーの等強度線が、長辺１６ａと垂直方向に延びている。言い換えれば、この長辺１６ａに相当する部位が発熱部材の最も高い発熱強度を示す主熱放射面となっている。そして、図３に示すように、中赤外線ランプヒータ１５は、従来技術の構成と異なり、主熱放射面である長辺１６ａが印画紙Ｐの被処理面と対向せず、むしろ長辺１６ａの延長線が印画紙Ｐの被処理面と略垂直に交差する方向に、すなわち、前記主発熱強度分布または前記等強度線が印画紙Ｐの被処理面に沿って延びるように配置してある。   Due to the cross-sectional shape described above, the mid-infrared lamp heater 15 is a directional heat generating member having a heat generation intensity distribution with the highest radiant energy in a specific angular direction along the cross section. That is, the isointensity line of the radiant energy emitted by the mid-infrared lamp heater 15 extends in the direction perpendicular to the long side 16a. In other words, the portion corresponding to the long side 16a is the main heat radiation surface showing the highest heat generation intensity of the heat generating member. As shown in FIG. 3, the mid-infrared lamp heater 15 is different from the structure of the prior art in that the long side 16a, which is the main heat radiation surface, does not face the processing surface of the photographic paper P. The extension line is arranged in a direction substantially perpendicular to the surface to be processed of the photographic paper P, that is, the main heat generation intensity distribution or the isointensity line extends along the surface to be processed of the photographic paper P.

リフレクタ２０の内面は、前記被処理面と対向するように記録媒体の幅方向と長手方向とに延びた平面状の第１反射面２０ａと、第１反射面２０ａの周辺部から前記被処理面に対して略垂直に延びた第２反射面２０ｂ，２０ｃとを有する。第２反射面２０ｂ，２０ｃは、湾曲状のコーナー反射面２０ｄを介して、第１反射面２０ａにおける上下の端部（すなわち、印画紙Ｐの搬送方向の端部）と接続される平面状の一対のエンド反射面２０ｂと、第１反射面２０ａにおける印画紙Ｐの幅方向の端部と接続される平面状の一対のサイド反射面２０ｃとからなる。各反射面は中赤外線の波長を高い反射率で反射するよう鏡面仕上げされている。   The inner surface of the reflector 20 has a planar first reflecting surface 20a extending in the width direction and the longitudinal direction of the recording medium so as to face the treated surface, and the treated surface from the periphery of the first reflecting surface 20a. The second reflecting surfaces 20b and 20c extend substantially perpendicular to the first reflecting surface 20b. The second reflecting surfaces 20b and 20c are planar shapes connected to upper and lower end portions (that is, end portions in the transport direction of the photographic paper P) of the first reflecting surface 20a via curved corner reflecting surfaces 20d. It consists of a pair of end reflecting surfaces 20b and a pair of planar side reflecting surfaces 20c connected to the widthwise ends of the photographic paper P on the first reflecting surface 20a. Each reflecting surface is mirror-finished so as to reflect the mid-infrared wavelength with high reflectivity.

尚、リフレクタ２０の内部には、印画紙Ｐの被処理面近傍の温度を検出するための温度センサ２２が配置されている。そして、写真プリント装置１には、温度センサ２２の検出値に基づいて、被処理面近傍の温度が目標値の範囲内になるように中赤外線ランプヒータ１５の発熱素子１６に対する通電量を制御する、乃至は、通電のＯＮ／ＯＦＦを切り換える制御装置（不図示）が設けられている。   A temperature sensor 22 for detecting the temperature in the vicinity of the processing surface of the photographic paper P is arranged inside the reflector 20. In the photographic printing apparatus 1, the energization amount to the heating element 16 of the mid-infrared lamp heater 15 is controlled based on the detection value of the temperature sensor 22 so that the temperature near the surface to be processed falls within the target value range. Or a control device (not shown) for switching ON / OFF of energization is provided.

このように、本発明による加熱乾燥装置１３を用いれば、単一の中赤外線ランプヒータ１５を用いながら、非常に広い面積の被処理面を穏やかで且つ均一な温度条件で加熱処理することができる。従来の方法のように、発熱部材を主発熱強度分布が被処理面と対向する方向で配置する構成では、このように広い面積の被処理面を比較的均一な温度条件で加熱処理するには、少なくとも２本の発熱部材を互いに被処理面に沿って離間するように用いる必要がある。しかも、主発熱強度分布が被処理面と対向するために、発熱部材と最も近接した部位で被処理面が過熱される傾向が高い。   As described above, by using the heating and drying apparatus 13 according to the present invention, it is possible to heat-treat a very large surface to be processed under a gentle and uniform temperature condition while using a single mid-infrared lamp heater 15. . In the configuration in which the heat generating member is arranged in the direction in which the main heat generation intensity distribution faces the surface to be processed as in the conventional method, in order to heat-treat the surface to be processed in such a large area under relatively uniform temperature conditions. It is necessary to use at least two heat generating members so as to be separated from each other along the surface to be processed. In addition, since the main heat generation intensity distribution faces the surface to be processed, the surface to be processed tends to be overheated at a position closest to the heat generating member.

また、本発明による加熱乾燥装置１３は、発熱部材として、水分に吸収され易い波長（２〜４μｍ）の中赤外線を主として放射する中赤外線ランプヒータ１５を用いているので、本実施形態のように、現像液によって湿式で現像処理された印画紙Ｐを乾燥処理する場合や、記録媒体上にプリントされた水系のインクを乾燥処理する場合には、特に乾燥操作が円滑に実施される。しかし、他の波長領域を持つ赤外線（近赤外線或いは遠赤外線）を放射する赤外線ランプヒータを発熱部材として用いることも可能である。   In addition, the heating and drying apparatus 13 according to the present invention uses the mid-infrared lamp heater 15 that mainly emits mid-infrared light having a wavelength (2 to 4 μm) that is easily absorbed by moisture as a heat generating member. In the case of drying the photographic paper P that has been wet-processed with the developer, or in the case of drying the water-based ink printed on the recording medium, the drying operation is particularly smoothly performed. However, it is also possible to use an infrared lamp heater that emits infrared rays (near infrared rays or far infrared rays) having other wavelength regions as a heating member.

〔別実施形態〕
〈１〉発熱部材は、炭素系材料を成形、焼結した発熱素子に限らず、例えばハロゲンランプなどでも良い。 [Another embodiment]
<1> The heat generating member is not limited to a heat generating element obtained by molding and sintering a carbon-based material, and may be a halogen lamp, for example.

〈２〉主発熱強度分布を特定の角度方向に有する指向性の発熱部材として、無指向性の発熱素子と、この発熱素子から被処理面に向けて発される熱エネルギーを、被処理面に沿って進むように偏向させる反射手段とで構成しても良い。 <2> As a directional heating member having a main heat generation intensity distribution in a specific angular direction, a non-directional heating element and thermal energy emitted from the heating element toward the processing surface are applied to the processing surface. You may comprise with the reflection means deflected so that it may advance along.

〈３〉上記の実施形態では、専ら印画紙Ｐの乳剤面側を被処理面とし、加熱乾燥装置１３を印画紙Ｐの乳剤面側のみに対向配置する形態について記載したが、印画紙Ｐの乳剤面側と基材面の双方を被処理面とし、上記の加熱乾燥装置１３の他に、印画紙Ｐの基材面に対向配置された加熱乾燥装置を設置した形態としても良い。 <3> In the above-described embodiment, a mode has been described in which the emulsion surface side of the photographic paper P is exclusively used as the surface to be processed, and the heating and drying device 13 is disposed only on the emulsion surface side of the photographic paper P. Both the emulsion surface side and the substrate surface may be treated surfaces, and in addition to the heating and drying device 13 described above, a heating and drying device disposed opposite to the substrate surface of the photographic paper P may be installed.

〈４〉上記の実施形態は単一の中赤外線ランプヒータを用いた加熱乾燥装置を例にとって記載したが、複数の発熱部材を互いに被処理面に沿って離間するように配置しても良く、この場合、さらに広い面積の被処理面を均一な温度条件で加熱処理することができる。 <4> The above embodiment has been described by taking a heating and drying apparatus using a single mid-infrared lamp heater as an example. However, a plurality of heat generating members may be arranged so as to be separated from each other along the surface to be processed. In this case, it is possible to heat-treat the surface to be processed having a larger area under uniform temperature conditions.

〈５〉加熱乾燥装置１３の付近にて印画紙Ｐから生じる湿り空気を排出する手段として、上記に実施形態に記したブロワー１４の代わりに、リフレクタ２０の下方のエンド反射面２０ｂと搬送ローラとの間に、印画紙Ｐの幅方向に延びた軸芯回りで回転駆動されるクロスフローファンなどを配置しても良い。この場合、さらに、クロスフローファンと印画紙Ｐの被処理面との間などにニクロム線ヒータ等を設けて被処理面に熱風を当てるようにすれば、湿り空気を排出する機能と、中赤外線ランプヒータ１５による乾燥処理を補助する機能とを合わせ持つ構成が得られる。 <5> As means for discharging wet air generated from the photographic paper P in the vicinity of the heating and drying device 13, instead of the blower 14 described in the above embodiment, an end reflecting surface 20b below the reflector 20 and a conveying roller A cross flow fan or the like that is driven to rotate around the axis extending in the width direction of the photographic paper P may be disposed therebetween. In this case, further, if a nichrome wire heater or the like is provided between the crossflow fan and the surface to be processed of the photographic paper P to apply hot air to the surface to be processed, the function of discharging moist air, A structure having a function of assisting the drying process by the lamp heater 15 is obtained.

〈６〉上記の実施形態は、本発明による加熱処理装置を印画紙の乾燥処理装置の一部として用いる場合を例にとって記載したが、本発明による加熱処理装置は、写真フィルム現像装置などに付随する乾燥処理装置の一部として用いても良い。また、本発明による加熱処理装置を、記録媒体の乾燥処理以外の目的で用いることが可能である。
例えば、昇華型インクによってプリントされた記録媒体を１８０℃などの昇華用加熱処理温度で加熱処理するための加熱処理装置などに用いることができる。このような記録媒体の場合、記録媒体の表面付近に付着している昇華型インクの成分が、本発明による加熱処理装置による加熱処理によって昇華して、記録媒体の内部層などに移動して定着され、画像形成工程が完了する。本発明による加熱処理装置を適用すれば、少ない数の発熱部材を用いながら、非常に広い面積の被処理面を穏やかで且つ均一な温度条件で加熱処理することができ、しかも、インク成分の昇華が均一に行われるため、より品質の良い画像が得られる。 <6> In the above embodiment, the case where the heat treatment device according to the present invention is used as a part of the photographic paper drying processing device has been described as an example. However, the heat treatment device according to the present invention is attached to a photographic film developing device or the like. You may use as a part of drying processing apparatus. Further, the heat treatment apparatus according to the present invention can be used for purposes other than the recording medium drying process.
For example, it can be used in a heat treatment apparatus for heat-treating a recording medium printed with sublimation ink at a heat treatment temperature for sublimation such as 180 ° C. In the case of such a recording medium, the sublimation ink component adhering to the vicinity of the surface of the recording medium is sublimated by the heat treatment by the heat treatment apparatus according to the present invention, and moved to the inner layer of the recording medium and fixed. Then, the image forming process is completed. By applying the heat treatment apparatus according to the present invention, it is possible to heat-treat a very large surface to be treated under a gentle and uniform temperature condition while using a small number of heat generating members, and to sublimate ink components. Is performed uniformly, so that a higher quality image can be obtained.

本発明による技術は、少ない数の発熱体を用いながら記録媒体の広い面積を加熱処理可能な装置として用いることができる。   The technology according to the present invention can be used as an apparatus capable of heat-treating a large area of a recording medium while using a small number of heating elements.

本発明による加熱処理装置を設置した写真処理装置の構成を示す略図Schematic diagram showing the configuration of a photographic processing apparatus provided with a heat processing apparatus according to the present invention. 図１の写真処理装置に設置された加熱処理装置の斜視図The perspective view of the heat processing apparatus installed in the photographic processing apparatus of FIG. 図１の写真処理装置に設置された加熱処理装置の側面図Side view of the heat treatment apparatus installed in the photo processing apparatus of FIG.

符号の説明Explanation of symbols

１ 写真プリント装置
２ プリンタ部
３ プロセッサ部
４ 印画紙マガジン
７ プリント露光部
９ 処理槽ユニット
１０ 乾燥処理部
１２ 乾燥ダクト
１３ 加熱乾燥装置（加熱処理装置）
１４ ブロワー
１５ 中赤外線ランプヒータ（発熱部材）
１６ 発熱素子
１６ａ 長辺
１６ｂ 短辺
１７ 透明石英管
２０ リフレクタ
２０ａ 第１反射面
２０ｂ エンド反射面（第２反射面）
２０ｃ サイド反射面（第２反射面）
２０ｄ コーナー反射面 DESCRIPTION OF SYMBOLS 1 Photo printing apparatus 2 Printer part 3 Processor part 4 Photographic paper magazine 7 Print exposure part 9 Processing tank unit 10 Drying process part 12 Drying duct 13 Heating drying apparatus (heat processing apparatus)
14 Blower 15 Mid-infrared lamp heater (heating member)
16 Heating element 16a Long side 16b Short side 17 Transparent quartz tube 20 Reflector 20a First reflecting surface 20b End reflecting surface (second reflecting surface)
20c Side reflective surface (second reflective surface)
20d corner reflection surface

Claims (4)

記録媒体を加熱するために、前記記録媒体の被処理面と離間配置された発熱部材と、前記発熱部材から放射される熱エネルギーを前記被処理面に集めるリフレクタとを備える加熱処理装置であって、
前記発熱部材を、その主発熱強度分布が互いに交差する長軸と短軸とを有する指向性の発熱部材で構成してあり、且つ、前記発熱部材を前記主発熱強度分布の前記長軸が前記被処理面に沿って延びるように配置してあり、
前記リフレクタが前記主発熱強度分布の前記長軸に沿って延出された第１反射面と、前記第１反射面の周辺部から前記主発熱強度分布の前記短軸に沿って延出された第２反射面とを有する加熱処理装置。 In order to heat a recording medium, a heating apparatus comprising: a heat generating member spaced apart from a surface to be processed of the recording medium; and a reflector that collects heat energy radiated from the heat generating member on the surface to be processed. ,
The heat generating member is composed of a directional heat generating member having a major axis and a minor axis whose main heat intensity distribution intersects each other , and the heat generating member has the major axis of the main heat intensity distribution. Thea arranged to extend along a surface to be processed is,
The reflector is extended along the short axis of the main heat generation intensity distribution from a first reflection surface extending along the major axis of the main heat generation intensity distribution and a peripheral portion of the first reflection surface. The heat processing apparatus which has a 2nd reflective surface . 前記発熱部材は長辺と短辺とを備える断面形状の発熱素子を有し、前記発熱素子は前記長辺の延長線が前記被処理面と交差するように配置してある請求項１に記載の加熱処理装置。   2. The heat generating member includes a heat generating element having a cross-sectional shape having a long side and a short side, and the heat generating element is disposed so that an extension line of the long side intersects the surface to be processed. Heat treatment equipment. 前記発熱部材として赤外線ランプヒータを用いている請求項１または２に記載の加熱処理装置。 Heat treatment apparatus according to claim 1 or 2, you have use an infrared lamp heater as the heating member. 前記リフレクタは、前記被処理面と対向するように記録媒体の幅方向と長手方向とに延びた前記第１反射面と、前記第１反射面の周辺部から前記被処理面と交差する方向に延びた前記第２反射面とを有する請求項１から３のいずれか一項に記載の加熱処理装置。 The reflector, the said first reflecting surface extending in the width direction and the longitudinal direction of the recording medium so as to face the surface to be treated in a direction intersecting with the surface to be processed from the periphery of the first reflecting surface The heat treatment apparatus according to claim 1, further comprising the extended second reflecting surface.
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