JP2860832B2 - Food heating equipment - Google Patents

Food heating equipment

Info

Publication number
JP2860832B2
JP2860832B2 JP2310917A JP31091790A JP2860832B2 JP 2860832 B2 JP2860832 B2 JP 2860832B2 JP 2310917 A JP2310917 A JP 2310917A JP 31091790 A JP31091790 A JP 31091790A JP 2860832 B2 JP2860832 B2 JP 2860832B2
Authority
JP
Japan
Prior art keywords
food
screw shaft
transfer cylinder
cylinder
edge member
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.)
Expired - Fee Related
Application number
JP2310917A
Other languages
Japanese (ja)
Other versions
JPH04183375A (en
Inventor
義仁 佐野
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2310917A priority Critical patent/JP2860832B2/en
Publication of JPH04183375A publication Critical patent/JPH04183375A/en
Application granted granted Critical
Publication of JP2860832B2 publication Critical patent/JP2860832B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、食品特にすり身の加熱装置に関するもので
ある。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for heating food, especially surimi.

従来の技術 例えば、かまぼこ,ちくわ,はんぺん,かに足風かま
ぼこ等の水産練製品は、原料の魚を採肉,水晒し,脱水
処理し、且つそれを粉砕,撹拌,擂漬し調味料を混和し
て得たすり身を、それぞれの製品に特有の形に成形した
後、加熱することにより製品とするものである。
2. Description of the Related Art For example, fishery kneaded products such as kamaboko, chikuwa, hampan, crab-footed kamaboko, etc., are obtained by mining, exposing to water, dehydrating, and pulverizing, stirring, and marinating fish as a seasoning. The surimi obtained by mixing is molded into a shape unique to each product, and then heated to obtain a product.

上記成形後の加熱の方法としては、従来は蒸煮,湯煮
等が一般に採用されている。
As a heating method after the above-mentioned molding, steaming, boiling water and the like are conventionally generally employed.

発明が解決しようとする課題 上記水産練製品の製造工程における加熱は、魚肉のゲ
ル化および殺菌をはかるものであるが、従来の蒸煮或は
湯煮のように、蒸気或は熱湯等の外部熱媒体を用いて加
熱する場合は、内部まで熱が通るのに時間がかかり(通
常は約90分程度かかる)、熱効率が悪い上に、製品の品
質が不均一になりがちであるという課題を有している。
Problems to be Solved by the Invention Heating in the production process of the above-mentioned fishery product is intended to gel and sterilize fish meat. However, as in the case of conventional steaming or boiling water, external heat such as steam or boiling water is used. In the case of heating using a medium, it takes a long time for the heat to reach the inside (usually about 90 minutes), and the heat efficiency is low and the product quality tends to be uneven. doing.

又上記のように外部熱媒体を使用する場合は、熱媒体
を通す為の配管装置が複雑且つ大型となり、メンテナン
スも厄介であるという課題を有している。
In addition, when an external heat medium is used as described above, there is a problem that a piping device for passing the heat medium becomes complicated and large, and maintenance is troublesome.

本発明は、上記のような従来の課題に対処するもとを
主目的とするものである。
An object of the present invention is to address the above-mentioned conventional problems.

課題を解決するための手段 本発明は、搬送シリンダと、該搬送シリンダ内に回転
可能に配設されたスクリュー軸と、該スクリュー軸を回
転駆動する駆動装置とからなり、該スクリュー軸の回転
により魚肉のすり身等の食品が搬送シリンダ内を圧縮さ
れつつ移送されるスクリュープレスにおいて、スクリュ
ー軸のスクリュー羽根先端縁に非導電性の端縁部材を固
着してスクリュー軸の回転時刻端縁部材が搬送シリンダ
内周面に摺接する構造とし、搬送シリンダとスクリュー
軸とを電源に接続し、該搬送シリンダとスクリュー軸と
を電極として搬送シリンダ内を圧送される食品に通電し
食品にジュール熱を発生させ連続加熱することを第1の
特徴とするものである。
Means for Solving the Problems The present invention comprises a transfer cylinder, a screw shaft rotatably disposed in the transfer cylinder, and a driving device for driving the screw shaft to rotate. In a screw press in which food such as fish meat surimi is transported while being compressed in the transport cylinder, a non-conductive edge member is fixed to the leading edge of the screw blade of the screw shaft, and the rotation time edge member of the screw shaft is transported. A structure in which the transfer cylinder and the screw shaft are connected to a power source, and the transfer cylinder and the screw shaft are used as electrodes to supply electricity to the food that is pressure-fed in the transfer cylinder to generate Joule heat in the food. The first feature is that heating is performed continuously.

又上記において、搬送シリンダ内の脱気を行う装置を
設けたことを第2の特徴とし、又上記電源を高周波電源
としたことを第3の特徴とするものである。
In the above, a second feature is that a device for deaeration of the inside of the transfer cylinder is provided, and a third feature is that the power supply is a high-frequency power supply.

作 用 上記第1の特徴により、一方の電極である搬送シリン
ダ内周面は常に非導電性の端縁部材の摺接により清浄化
されるので電極表面が汚れて通電効率が低下するような
ことはなく、熱効率の良い連続加熱が可能となり、食品
の加熱工程の時間短縮をはかることができる。
According to the first feature, the inner peripheral surface of the transfer cylinder, which is one of the electrodes, is always cleaned by sliding contact of the non-conductive edge member, so that the electrode surface becomes dirty and the power supply efficiency is reduced. However, continuous heating with good thermal efficiency can be performed, and the time required for the food heating step can be reduced.

又第2の特徴により、食品中に含まれる空気層がほと
んどなくなることによって通電電流の大きな変動がなく
なり、又第3の特徴により加熱時間の大幅な短縮をはか
り得る。
Further, according to the second feature, since the air layer contained in the food is almost eliminated, a large fluctuation of the energizing current is eliminated, and the heating time can be significantly reduced by the third feature.

実施例 以下本発明の実施例を附図を参照して説明する。Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

第1図は本発明の第1の実施例を示すものであり、1
は搬送シリンダ、2はテーパ軸よりなる回転軸21と該回
転軸21の外周部に一体的に設けられたスクリュー羽根22
とからなるスクリュー軸であり、該スクリュー軸2は搬
送シリンダ1内にて回転可能なるよう嵌装され、電動モ
ータ,減速機等よりなる駆動装置3により回転駆動され
る。
FIG. 1 shows a first embodiment of the present invention.
Is a conveying cylinder, 2 is a rotating shaft 21 formed of a tapered shaft, and a screw blade 22 provided integrally on an outer peripheral portion of the rotating shaft 21.
The screw shaft 2 is rotatably fitted in the transfer cylinder 1 and is driven to rotate by a driving device 3 including an electric motor, a speed reducer, and the like.

搬送シリンダ1の一端部には資料供給部11が設けら
れ、該資料供給部11に投入されたすり身4は、スクリュ
ー軸2の回転に伴ない搬送シリンダ1内に入り出口方向
へと送られつつ圧縮され、出口12より押し出される。
A material supply unit 11 is provided at one end of the transport cylinder 1, and the surimi 4 put into the material supply unit 11 enters the transport cylinder 1 along with the rotation of the screw shaft 2 while being sent to the exit direction. It is compressed and extruded from outlet 12.

この実施例では、出口12に所定の径をもった***をた
さんあけたプレート5を取付け、圧縮され且つ後述する
よう加熱されゲル化したすり身4が該プレート5の***
より押し出されることにより、かに足風かまぼこを得る
ことができる例を示しているが、上記プレート5の代り
に半円筒状或は円筒状等、製品に特有な断面形状をもっ
たノズルを用い、該ノズルより押し出された資料を所定
の長さに切断することにより、所定形状のかまぼこ,ち
くわ,魚肉ソーセージ等を得ることができる。
In this embodiment, a plate 5 having a small hole with a predetermined diameter is attached to the outlet 12, and the compressed and heated gelled surimi 4 to be described later is extruded from the small hole of the plate 5, Although an example in which crab-footed kamaboko can be obtained is shown, a nozzle having a cross-sectional shape peculiar to a product such as a semi-cylindrical shape or a cylindrical shape is used in place of the plate 5, and extruded from the nozzle. By cutting the sampled material into a predetermined length, a kamaboko, chikuwa, fish sausage or the like having a predetermined shape can be obtained.

上記搬送シリンダ1およびスクリュー軸2は導電性の
金属材で構成されるが、スクリュー軸2のスクリュー羽
根22先端縁には第1図(ハ)に示すように耐摩耗性にす
ぐれている非導電性のプラスチックよりなる端縁部材22
aを接着若しくはねじ止め或はリベット止め等の手段に
て固着し、該端縁部材22aの端面が搬送シリンダ1の内
周面に接触する構造とする。上記端縁部材22aは摩耗時
取換えが可能な構造としておくことが望ましい。
The transfer cylinder 1 and the screw shaft 2 are made of a conductive metal material, and the leading edge of the screw blade 22 of the screw shaft 2 has a non-conductive material having excellent wear resistance as shown in FIG. Edge member 22 made of conductive plastic
a is fixed by bonding, screwing, riveting, or the like, so that the end surface of the edge member 22a contacts the inner peripheral surface of the transport cylinder 1. It is desirable that the edge member 22a has a structure that can be replaced when worn.

そして、搬送シリンダ1とスクリュー軸2をそれぞれ
電源に接続し、搬送シリンダ1内の資料を通って電流が
流れ、資料の電気抵抗によって生ずるジュール熱により
資料が加熱されるようにしている。
Then, the transport cylinder 1 and the screw shaft 2 are connected to a power source, respectively, and an electric current flows through the material in the transport cylinder 1 so that the material is heated by Joule heat generated by the electric resistance of the material.

6は電力調整器、7は変圧器であり、電力調整器6は
過電流保護機能と電圧,電流,電力のフィードバック制
御機能をもち、又搬送シリンダ1の出口部内の資料温度
を検出する資料温度検出器8の検出値により、該資料温
度が所定値範囲となるよう供給電力の制御を行うもので
ある。
Reference numeral 6 denotes a power regulator, 7 denotes a transformer, and the power regulator 6 has an overcurrent protection function and a feedback control function of voltage, current, and power, and a material temperature for detecting a material temperature in an outlet portion of the transport cylinder 1. Based on the detection value of the detector 8, the supply power is controlled so that the material temperature falls within a predetermined value range.

以下本装置の実験例を説明する。 Hereinafter, an experimental example of the present apparatus will be described.

資料としては食品の中で導電性であり且つ電気抵抗を
もつ食品としてすり身を使用し、具体的には、冷凍スケ
ソウすり身2Kgに食塩40g,澱粉220g,化学調味料50g混入
しサイレントカッタで混練したものを用いた。
As a material, surimi was used as a food having conductivity and electric resistance in the food, specifically, 2 kg of frozen scallop surimi was mixed with 40 g of salt, 220 g of starch, 50 g of chemical seasoning and kneaded with a silent cutter Was used.

装置は、スクリュー軸外径寸法100mm(端縁部材の高
さHは約10mm),長さ750mm,圧縮比1:2の実験用装置と
し、スクリュー軸回転数は0〜50rpmの範囲とした。
The apparatus used was an experimental apparatus having a screw shaft outer diameter of 100 mm (the height H of the edge member is about 10 mm), a length of 750 mm, and a compression ratio of 1: 2, and the screw shaft rotation speed was in a range of 0 to 50 rpm.

電源は220V,60HZの商用周波数電源を用い、200V,10〜
12Ampの電力で加熱するものとした。
Power supply is 220V, 60HZ commercial frequency power supply, 200V, 10 ~
Heating was performed with electric power of 12 Amp.

上記の実験にて、加熱時間としてはほぼ4分前後程度
で良好なゲル化製品を連続して得ることができ(出口の
資料圧力は約7Kg/cm2)、それより少い時間では充分な
ゲル化ができないことが確認できた。
In the above experiment, a good gelled product can be continuously obtained with a heating time of about 4 minutes (approximately 7 kg / cm 2 at the outlet), and a shorter time is sufficient. It was confirmed that gelation was not possible.

又スクリュー軸の回転によって生じる加圧力が高い
程、食品のゲル化に必要な内部温度(約90℃)に早く達
することも確認できた。
It was also confirmed that the higher the pressure generated by the rotation of the screw shaft, the sooner the internal temperature (about 90 ° C.) required for gelling the food was reached.

通電作業中に時々電力調整器6の過電流保護手段(ブ
レーカ)が作動した。その原因は資料の中に存在する空
気の層による電流の大きな変動によるものと考えられ
る。そこで第1図に示すように搬送シリンダ1内を真空
ポンプ9に連結し、該真空ポンプ9で脱気しつつ作業を
行うという方策を採ることにより上記過電流保護手段の
作動はなくなった。
During the energization work, the overcurrent protection means (breaker) of the power regulator 6 was sometimes activated. The cause is considered to be the large fluctuation of the current due to the air layer existing in the material. Therefore, as shown in FIG. 1, the operation of the overcurrent protection means is eliminated by connecting the inside of the transfer cylinder 1 to the vacuum pump 9 and performing a work while evacuating the vacuum pump 9.

長時間の連続作業で問題となるのは、電極の汚れによ
る通電不安定であるが、上記のように非導電性の端縁部
材22aが一方の電極である搬送シリンダ内周面を常に摺
動しているので、該搬送シリンダ1の内周面が汚れるこ
とはなく、長時間安定した通電が持続される。
The problem with continuous operation for a long time is that current is unstable due to contamination of the electrodes, but as described above, the non-conductive edge member 22a always slides on the inner peripheral surface of the transfer cylinder, which is one electrode. As a result, the inner peripheral surface of the transfer cylinder 1 does not become dirty, and stable energization is maintained for a long time.

尚資料がスクリュー軸2と一体となって回転し送られ
ない現象即ち共廻り現象を防止する為に第1図(ロ)に
示すように搬送シリンダ1の内面に抵抗溝13を複数条設
けることが必要であり、該抵抗溝13内には資料が残るの
で、搬送シリンダ1を2分割できる構造とし、作業終了
後は搬送シリンダ1を2分割しスクリュー軸2を取り出
し、これらを洗滌水で洗って電極面をきれいにし、通電
率の向上に努めることが好ましい。
A plurality of resistance grooves 13 are provided on the inner surface of the transfer cylinder 1 as shown in FIG. Since the material remains in the resistance groove 13, the transfer cylinder 1 is divided into two parts. After the work is completed, the transfer cylinder 1 is divided into two parts, the screw shaft 2 is taken out, and these are washed with washing water. It is preferable that the electrode surface is cleaned to improve the conductivity.

第2図は本発明の第2の実施例を示すものであり、こ
の例ではスクリュー軸2を2本として搬送シリンダ1内
で互に咬み合った状態に配設し、この2本のスクリュー
軸2が互に逆方向に回転するようにしたことにより、第
1図の抵抗溝13を設けなくても資料が共廻りをおこさな
いようにし、これにより一方の電極である搬送シリンダ
1の内周面全体が端縁部材22aにて常に摺動清浄化され
るようにしたものである。
FIG. 2 shows a second embodiment of the present invention. In this embodiment, two screw shafts 2 are arranged so as to be engaged with each other in the transfer cylinder 1 and the two screw shafts are provided. 2 are rotated in opposite directions so that the materials do not rotate together without the provision of the resistance groove 13 shown in FIG. The entire surface is always slid and cleaned by the edge member 22a.

第2図において、上記以外の構造は第1図のものと同
じであり、第1図と同一の符号は同一の部分を表わして
いる。
2, the structure other than the above is the same as that of FIG. 1, and the same reference numerals as those in FIG. 1 represent the same parts.

第1,2図の実施例において、220V,60HZの商用周波数電
源の代りに、周波数変換装置を用いて150〜10000HZ程度
の高周波電源を使用すると、極く短時間で資料は発熱
し、電力コストの大幅な節減をはかることができるが、
一方温度上昇が急激である為に資料の温度調節管理が難
しくなり均一なゲル化製品を得ることが難しくなるとい
う問題がある。
In the embodiment shown in FIGS. 1 and 2, when a high frequency power supply of about 150 to 10,000 Hz is used by using a frequency converter instead of a commercial frequency power supply of 220 V, 60 HZ, the material generates heat in an extremely short time, and the power cost is reduced. Can save a lot of money,
On the other hand, there is a problem that it is difficult to control and control the temperature of the material due to the rapid rise in temperature, and it is difficult to obtain a uniform gel product.

しかし高周波になる程エネルギーを集中させ易く、低
周波ではエネルギーが拡散する性質をもっていることか
ら、処理能力が比較的小なる小型の装置では高周波電源
を使用し、大型の装置では低周波電源を使用することに
より、効率の良い加熱が可能となる。
However, the higher the frequency, the easier it is to concentrate energy, and the lower the frequency, the more the energy is diffused. Therefore, high-frequency power is used for small devices with relatively small processing capacity, and low-frequency power is used for large devices. By doing so, efficient heating becomes possible.

尚第1,2図の実施例において、搬送シリンダ1の端面
板,出口板,資料供給部等は非導電性の材質で構成し、
又スクリュー軸2と駆動装置3とは非導電性のカップリ
ングで連結することは当然であり、搬送シリンダ1の外
周部は非導電性のカバーで覆った構造とすることが好ま
しい。
In the embodiment shown in FIGS. 1 and 2, the end plate, the outlet plate, the material supply section, etc. of the transfer cylinder 1 are made of a non-conductive material.
It is natural that the screw shaft 2 and the driving device 3 are connected by a non-conductive coupling, and it is preferable that the outer peripheral portion of the transport cylinder 1 is covered with a non-conductive cover.

又搬送シリンダ1およびスクリュー軸2の具体的構造
は図示の構造に限定されることなく、本発明の目的の範
囲内において任意の構造のものを採用し得る。
Further, the specific structures of the transport cylinder 1 and the screw shaft 2 are not limited to the structures shown in the drawings, and any structure can be adopted within the scope of the present invention.

更に又上記実施例ではすり身の加熱について述べた
が、本発明は導電性があり且つ適当な電気抵抗をもった
任意の食品の連続加熱装置として適用できる。
Further, in the above embodiment, the heating of the surimi is described, but the present invention can be applied as a continuous heating apparatus for any food having conductivity and appropriate electric resistance.

発明の効果 以上のように本発明によれば、魚肉すり身を主とした
食品の熱効率の良い連続加熱が可能となり、特に水産練
製品の製造工程に適用した場合、すり身の加熱,成形時
間の著しい短縮,製造コストに大幅な低廉化をはかり、
且つ製品の品質均一化をもはかることができるので、実
用上多大の効果をもたらし得るものである。
Advantageous Effects of the Invention As described above, according to the present invention, it is possible to perform continuous heating with high thermal efficiency of foods, mainly fish meat surimi, and particularly when applied to the production process of fishery products, the time required for heating and shaping the surimi is remarkable. Shortening, and significantly reducing manufacturing costs.
Moreover, since the quality of the product can be made uniform, a great effect can be obtained in practical use.

【図面の簡単な説明】[Brief description of the drawings]

第1図は本発明の第1の実施例を示すもので、(イ)図
は縦断側面図、(ロ)図は(イ)図のX−X断面図、
(ハ)図は(ロ)図のY−Y断面図でスクリュー羽根先
端縁部の構造を示している。第2図(イ)および(ロ)
は本発明の第2の実施例を示す横断平面図およびZ−Z
断面図である。 1……搬送シリンダ、2……スクリュー軸、22……スク
リュー羽根、22a……端縁部材、3……駆動装置、4…
…すり身、6……電力調整器、7……変圧器、8……資
料温度検出器、9……真空ポンプ。
1A and 1B show a first embodiment of the present invention. FIG. 1A is a longitudinal side view, FIG. 1B is a sectional view taken along line XX of FIG.
(C) is a sectional view taken along the line YY of (b), and shows the structure of the tip end of the screw blade. Fig. 2 (a) and (b)
Is a cross-sectional plan view showing a second embodiment of the present invention and ZZ
It is sectional drawing. DESCRIPTION OF SYMBOLS 1 ... Convey cylinder, 2 ... Screw shaft, 22 ... Screw blade, 22a ... Edge member, 3 ... Drive device, 4 ...
... Surimi, 6 ... Power regulator, 7 ... Transformer, 8 ... Material temperature detector, 9 ... Vacuum pump.

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】導電性材料よりなる搬送シリンダと、該搬
送シリンダ内に回転可能に配設された導電性材料よりな
るスクリュー軸と、該スクリュー軸を回転駆動する駆動
装置とからなり、該スクリュー軸の回転により資料投入
口より搬送シリンダ内に連続供給される導電性があり且
つ電気抵抗をもつ食品を連続的に加圧しつつ移送し出口
より押し出す装置であって、上記スクリュー軸のスクリ
ュー羽根先端縁には非導電性の端縁部材が固着され、該
端縁部材が搬送シリンダの内周面に摺接する構造となっ
ており、上記搬送シリンダとスクリュー軸とを電源に接
続する手段をもち、搬送シリンダ内の上記食品に通電さ
せることにより食品にジュール熱を発生させて連続加熱
するようにしたことを特徴とする食品の加熱装置。
1. A transfer cylinder made of a conductive material, a screw shaft made of a conductive material rotatably disposed in the transfer cylinder, and a driving device for rotating and driving the screw shaft. A device for transferring and pushing out an electrically conductive food having an electric resistance, which is continuously supplied into a transfer cylinder from a material input port by rotation of a shaft, and extrudes the food from an outlet, wherein a tip of a screw blade of the screw shaft is provided. A non-conductive edge member is fixed to the edge, and the edge member has a structure in which the edge member slides on the inner peripheral surface of the transfer cylinder, and has means for connecting the transfer cylinder and the screw shaft to a power supply, A food heating device, characterized in that Joule heat is generated in the food by energizing the food in the transport cylinder to continuously heat the food.
【請求項2】請求項(1)に記載した食品の加熱装置に
おいて、搬送シリンダ内の空気を抜く脱気装置を設けた
ことを特徴とする食品の加熱装置。
2. A food heating apparatus according to claim 1, further comprising a deaerator for bleeding air from the transport cylinder.
【請求項3】請求項(1)又は(2)に記載した食品の
加熱装置において、搬送シリンダとスクリュー軸に通電
する電源として高周波電源を用いることを特徴とする食
品の加熱装置。
3. The food heating apparatus according to claim 1, wherein a high-frequency power supply is used as a power supply for supplying electricity to the transport cylinder and the screw shaft.
JP2310917A 1990-11-16 1990-11-16 Food heating equipment Expired - Fee Related JP2860832B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2310917A JP2860832B2 (en) 1990-11-16 1990-11-16 Food heating equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2310917A JP2860832B2 (en) 1990-11-16 1990-11-16 Food heating equipment

Publications (2)

Publication Number Publication Date
JPH04183375A JPH04183375A (en) 1992-06-30
JP2860832B2 true JP2860832B2 (en) 1999-02-24

Family

ID=18010939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2310917A Expired - Fee Related JP2860832B2 (en) 1990-11-16 1990-11-16 Food heating equipment

Country Status (1)

Country Link
JP (1) JP2860832B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2608370B2 (en) * 1992-10-28 1997-05-07 株式会社フロンティアエンジニアリング Skewer heating equipment for kneaded products
TW358017B (en) * 1998-06-30 1999-05-11 Food Industry Dev Res Inst A common cooking system for solid daily dishes
FR2903861B1 (en) * 2006-07-24 2011-04-15 Campbell France Sas OHMIC HEATING SYSTEM WITH ENDLESS SCREW CIRCULATION
IT1396043B1 (en) * 2009-10-12 2012-11-09 Astepo S R L Ora Alfa Laval Parma S R L OHMIC DEVICE FOR THERMAL TREATMENT OF FOOD
JP5843541B2 (en) * 2011-09-20 2016-01-13 紀伊産業株式会社 Method for producing multicolor solid cosmetics

Also Published As

Publication number Publication date
JPH04183375A (en) 1992-06-30

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