JP3103706B2 - Bath composition - Google Patents
Bath compositionInfo
- Publication number
- JP3103706B2 JP3103706B2 JP05170401A JP17040193A JP3103706B2 JP 3103706 B2 JP3103706 B2 JP 3103706B2 JP 05170401 A JP05170401 A JP 05170401A JP 17040193 A JP17040193 A JP 17040193A JP 3103706 B2 JP3103706 B2 JP 3103706B2
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- JP
- Japan
- Prior art keywords
- water
- bath
- substance
- insoluble substance
- parts
- 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.)
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、水不溶性物質を水系で
安定に分散させるための組成物の製造方法に関し、更に
詳しくは水溶性高分子物質中に顔料を２本ロール分散機
を用いて高剪断力作用下で混練分散することにより、水
溶解性と水分散安定性が良好な入浴剤用組成物を提供す
ることに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a composition for stably dispersing a water-insoluble substance in an aqueous system, and more particularly to a method for dispersing a pigment in a water-soluble polymer substance using a two-roll disperser. The present invention relates to providing a bath additive composition having good water solubility and water dispersion stability by kneading and dispersing under the action of high shearing force.
【０００２】[0002]
【従来の技術】入浴は身体の疲労回復の他に心理的にも
リラックス効果があると言われており、心身ともに鎮静
感を味わえる健康法である。特に白濁した浴湯は、その
色調からいわゆる牛乳風呂のイメージがあり、美容を意
識した高級な入浴法として好まれている。又、着色或い
は懸濁した浴湯は温泉の雰囲気をかもし出し、情緒性と
リラックス感を助長する入浴法として楽しまれている。
この様な懸濁性入浴剤に関する技術として、白色乳濁状
の入浴剤が開発され実用化されている（特開昭６３−５
７５１６号公報，特開平１−１４９７１４号公報）が、
共通する問題点としては、浴湯中に投入した場合、懸濁
物質が時間の経過と共に浴槽の底に沈澱してしまい、逆
に不快感を与えたり或いは懸濁物質やその分散安定剤と
して用いている成分などが浴壁に付着し、浴槽洗浄性を
損なうなどの問題がある。2. Description of the Related Art Bathing is said to have a psychologically relaxing effect in addition to the recovery of body fatigue, and is a health method that can provide a soothing sensation both in mind and body. In particular, cloudy bath water has the image of a so-called milk bath because of its color tone, and is preferred as a high-quality bathing method that is conscious of beauty. In addition, colored or suspended bath water creates a hot spring atmosphere and is enjoyed as a bathing method that promotes emotional and relaxing feeling.
As a technique relating to such a suspending bath agent, a white emulsion bath agent has been developed and put into practical use (Japanese Patent Laid-Open No. 63-5 / 1988).
7516, JP-A-1-149714),
A common problem is that when poured into bath water, the suspended substance precipitates at the bottom of the bathtub with the passage of time, giving a discomfort or being used as a suspended substance or its dispersion stabilizer. There is a problem that the components and the like adhere to the bath wall and impair the bathtub cleaning performance.
【０００３】[0003]
【発明が解決しようとする課題】上記の問題を解決すべ
く研究を重ねた結果、２本ロールを用い強力な剪断力作
用の下に水不溶性物質を水溶性高分子物質中に混練分散
することにより水に溶解しやすく、かつ水系での分散安
定性に優れる組成物を開発し、当該組成物を配合した懸
濁入浴剤組成物が浴湯中に投入された場合、水に速やか
に溶解し安定な懸濁色調が得られることを見い出し、懸
濁安定性に極めて優れる入浴剤を見いだした。As a result of repeated studies to solve the above-mentioned problems, kneading and dispersing a water-insoluble substance into a water-soluble polymer substance under the action of strong shearing force using two rolls. By developing a composition that is easily dissolved in water and has excellent dispersion stability in an aqueous system, when the suspension bath composition containing the composition is put into bath water, it is immediately dissolved in water. It has been found that a stable suspension color tone can be obtained, and a bath agent having extremely excellent suspension stability has been found.
【０００４】[0004]
【課題を解決するための手段】第一の発明は、水溶性高
分子物質１０〜８０部と水不溶性物質２０〜９０部から
なる混合物を２本ロールを用い高剪断力作用下にて水不
溶性物質を分散をすることを特徴とする入浴剤用組成物
である。第二の発明は、水不溶性物質が顔料であること
を特徴とする請求項１記載の入浴剤用組成物である。す
なわち本発明の、入浴剤用組成物は微細な水不溶性物質
の粒子表面が水溶性高分子物質で被覆されているため、
浴湯中においては懸濁着色度が高く、しかも分散安定性
に優れる利点を持ち、従来問題となっていた懸濁成分が
沈澱する問題を解決するものである。According to a first aspect of the present invention, a mixture of 10 to 80 parts of a water-soluble polymer substance and 20 to 90 parts of a water-insoluble substance is water-insoluble under high shearing action using two rolls. A composition for a bath additive characterized by dispersing a substance. A second invention is the composition for a bath additive according to claim 1, wherein the water-insoluble substance is a pigment. That is, the composition of the present invention for a bath agent is coated with a water-soluble polymer substance on the surface of fine water-insoluble substance particles,
It has the advantage of having a high degree of suspension coloring in a bath water and excellent dispersion stability, and solves the problem of precipitation of suspended components, which has been a problem in the past.
【０００５】水不溶性物質としては、酸化チタン、亜鉛
華、炭酸カルシウム、カオリン、ベントナイトなどの白
色系無機顔料を例示することができる。さらに上記白色
系無機顔料以外に有色系の有機及び無機顔料と混合して
用いることができる。水溶性高分子物質としては、セル
ロース系高分子物質であるメチルセルロース、ヒドロキ
シプロピルメチルセルロース、ヒドロキシエチルメチル
セルロース、カルボキシメチルセルロース、この他水溶
性デンプン、グアーガム、キサンタンガムなどの多糖類
高分子物質を用いることができる。Examples of the water-insoluble substance include white inorganic pigments such as titanium oxide, zinc white, calcium carbonate, kaolin and bentonite. Further, in addition to the above-mentioned white inorganic pigment, it can be used in combination with a colored organic or inorganic pigment. Examples of the water-soluble polymer substance include cellulosic polymer substances such as methylcellulose, hydroxypropylmethylcellulose, hydroxyethylmethylcellulose, carboxymethylcellulose, and polysaccharide polymer substances such as water-soluble starch, guar gum, and xanthan gum.
【０００６】さらに、上記に例示した水溶性高分子以外
にも水不溶性物質を微細な粒子に混練分散するのに適し
た高分子物質であれば適宜使用することが可能である。
水不溶性物質を微細な粒子として、水溶性高分子物質中
に分散させる製造方法について説明する。水不溶性物質
２０〜９０重量部に水溶性高分子物質を１０〜８０重量
部を、好ましくは、水溶性高分子物質１５〜４０部に対
して水不溶性物質６０〜８５部を、常温で撹拌混合し均
質な混合物を作る。なお、均質な混合物が得られた後、
水や有機溶剤を加え、含湿混合物を作っても良い。Further, in addition to the water-soluble polymers exemplified above, any polymer material suitable for kneading and dispersing a water-insoluble substance into fine particles can be used as appropriate.
A production method for dispersing a water-insoluble substance as fine particles in a water-soluble polymer substance will be described. 20-90 parts by weight of the water-insoluble substance is mixed with 10-80 parts by weight of the water-soluble polymer substance, preferably 60-85 parts of the water-insoluble substance is mixed with 15-40 parts of the water-soluble polymer substance at room temperature. To make a homogeneous mixture. After a homogeneous mixture is obtained,
Water and an organic solvent may be added to make a wet mixture.
【０００７】水不溶性物質と水溶性高分子物質の重量比
としては上記の範囲にあれば良いが、水不溶性物質の量
が前記の範囲を超えて多くなると２本ロール上での混練
分散の作業性が悪化し、微細な粒子まで分散できなくな
ると共に粒子表面が水溶性高分子物質で完全に被覆しき
れず、水中の分散安定性が低下する。一方水不溶性物質
の量が前記の範囲により少なくなると２本ロール上での
混練分散に必要な強力な剪断力が得られず、所望の粒度
分布を得られなくなると共に過剰の水溶性高分子物質が
浴湯中で浴槽への付着などの問題を引き起こす。次に、
この混合物を５０〜９０℃に加熱した２本ロールにて水
不溶性物質が、目的の粒度分布範囲になるまで練肉分散
する。The weight ratio of the water-insoluble substance to the water-soluble polymer substance may be within the above range, but when the amount of the water-insoluble substance exceeds the above range, the kneading and dispersing operation on two rolls is performed. In addition, fine particles cannot be dispersed, and the surface of the particles cannot be completely covered with the water-soluble polymer substance, so that the dispersion stability in water decreases. On the other hand, when the amount of the water-insoluble substance is smaller than the above range, a strong shearing force required for kneading and dispersing on the two rolls cannot be obtained, and a desired particle size distribution cannot be obtained, and excess water-soluble polymer substance is removed. It causes problems such as adhesion to the bathtub in bath water. next,
The water-insoluble substance is ground and dispersed by using two rolls of the mixture heated to 50 to 90 ° C. until the mixture reaches a target particle size distribution range.
【０００８】得られたシート状の組成物は常温に冷却さ
れた後、ピンミルやハンマーミルなどの粉砕機で１０ｍ
ｍ以下のチップに粗砕する。次いで粗砕チップはジェッ
トミルやターボミルで１０μｍ〜５００μｍの粒度に粉
砕することにより入浴剤用組成物が得られる。分散され
た水不溶性物質の粒度分布は、懸濁着色度と沈降性のバ
ランスから、０．１〜０．５μｍの範囲が良く、この範
囲より粒度が細かいと懸濁着色度が低下し、又大きくな
ると分散安定性が悪化してくる。The sheet-like composition obtained is cooled to room temperature, and then crushed by a pulverizer such as a pin mill or a hammer mill.
pulverize into chips less than m. Next, the crushed chips are pulverized to a particle size of 10 μm to 500 μm with a jet mill or a turbo mill to obtain a composition for a bath additive. The particle size distribution of the dispersed water-insoluble substance is preferably in the range of 0.1 to 0.5 μm from the balance between the degree of suspension coloring and sedimentation. If the particle size is smaller than this range, the degree of suspension coloring decreases, and As the size increases, the dispersion stability deteriorates.
【０００９】微細に分散された水不溶性物質を含有する
入浴剤組成物の粉砕粒度は、１０μｍ〜５００μｍの範
囲にあると、水中に投入された際に溶解性は良好であ
り、入浴剤としての製剤化工程に支障を与えない。懸濁
性の入浴剤に用いる本発明の入浴剤用組成物量は、水不
溶性物質が浴湯中濃度として１０〜５０ｐｐｍ程度あれ
ば十分な懸濁性を与えるため、入浴剤の配合にあたって
は種々の添加剤が加えられる。分包用の増量剤や固形化
するための賦形剤の他、入浴効果を向上するために以下
を示すような各種の入浴剤成分が適宜配合される。[0009] When the pulverized particle size of the bath agent composition containing a finely dispersed water-insoluble substance is in the range of 10 µm to 500 µm, the solubility is good when put into water, and Does not interfere with the formulation process. The amount of the composition for a bathing agent of the present invention used for a suspending bathing agent is sufficient when the water-insoluble substance has a concentration of about 10 to 50 ppm as a concentration in the bath water to give sufficient suspending properties. Additives are added. In addition to a bulking agent for packaging and an excipient for solidifying, various bathing ingredients as described below are appropriately compounded to improve the bathing effect.
【００１０】一般に用いられる入浴剤の成分としては、
硫酸ナトリウム，炭酸水素ナトリウム，塩化ナトリウム
などの無機塩類，ケイヒ，ウイキョウなどの薬用剤の他
ジャスミンなどの香料や食用色素，更に保湿剤や油脂類
などが挙げられるが、これらを入浴剤処方に従って配合
し、リボンミキサーやＶ型混合機に入れて常温で３０〜
６０分撹拌混合して均一な粉末入浴剤を製造する。本発
明によれば、従来水不溶性物質を浴湯中で安定に分散さ
せておくために使用していた界面活性剤などの分散安定
剤を使用せずに懸濁入浴剤組成物を製造することができ
るため、従来分散安定剤に起因する香料成分の失活や刺
激性に関する問題もなく、配合処方上の制約が低減さ
れ、幅広い製品設計が可能となった。[0010] The components of the bath agent generally used include:
Inorganic salts such as sodium sulfate, sodium bicarbonate and sodium chloride; medicinal agents such as cabbage and fennel; flavors such as jasmine; food colors; humectants and fats and oils; And put it in a ribbon mixer or V-type mixer at room temperature for 30 ~
Stir and mix for 60 minutes to produce a uniform powdered bath agent. According to the present invention, it is possible to produce a suspension bath preparation composition without using a dispersion stabilizer such as a surfactant which has been conventionally used for stably dispersing a water-insoluble substance in bath water. Therefore, there is no problem regarding deactivation and irritation of the fragrance component caused by the conventional dispersion stabilizer, the restrictions on the formulation are reduced, and a wide range of product designs is possible.
【００１１】また、水不溶性物質を細粒化し水溶性高分
子物質をその粒子表面に強制的に被覆吸着させる製造方
法をとるため、浴湯に投入した後の希薄懸濁系において
も被覆された水溶性高分子物質は保護コロイド的な作用
を発揮し、安定な分散性が維持できているものと推定さ
れ、従来の懸濁性入浴剤にない沈澱性の向上が得られて
いる。Further, in order to adopt a manufacturing method in which the water-insoluble substance is finely divided and the water-soluble polymer substance is forcibly coated and adsorbed on the particle surface, the water-insoluble substance is coated even in a dilute suspension system after being poured into bath water. It is presumed that the water-soluble polymer substance exerts a protective colloidal effect and can maintain a stable dispersibility, and an improvement in precipitation properties not found in conventional suspending bath agents has been obtained.
【００１２】[0012]
【実施例】以下実施例をあげて本発明を具体的に説明す
るが、本発明はこれらの実施例だけに限定されるもので
はない。 実施例１ 平均粒径０．２５μｍの二酸化チタン４００部に平均分
子量１７，０００のカルボキシメチルセルロース１００
部を加え、常温で１０分間撹拌混合し均一な混合物を作
った。この混合物を撹拌しながら水８０部を徐々に添加
し、均一な含水粉体を調製した。EXAMPLES The present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. Example 1 Carboxymethyl cellulose 100 having an average molecular weight of 17,000 was added to 400 parts of titanium dioxide having an average particle size of 0.25 μm.
The mixture was stirred at room temperature for 10 minutes to form a uniform mixture. While stirring this mixture, 80 parts of water was gradually added to prepare a uniform water-containing powder.
【００１３】次いでこの含水粉体を８０℃に加温した２
本ロール上に乗せ、粉体をシート状にした。シートは繰
り返し２本ロールで処理し、硬いシート状になるまで混
練した。このシートを２本ロールから取り出し、常温ま
で冷却後、ハンマーミル型粉砕機で最大粒径６ｍｍに粉
砕した。次いでジェットミル型粉砕機で粉砕し、２００
メッシュパスの組成物を得た。次いで、この組成物を５
重量部に無水硫酸ナトリウム８０重量部，炭酸水素ナト
リウム１４重量部，香料１重量部をＶ型混合機に入れ、
１０分間撹拌して白濁性入浴剤１Ｋｇを作った。この入
浴剤２０ｇを４０℃の浴湯２００ｌに投入しかき混ぜた
ところ、即座に乳白濁色を示した。この浴湯に入浴した
２４時間後、浴湯の上層部をくみ取り、入浴剤投入直後
の浴湯と濁度を比較した結果、白濁度は同等であった。
又、浴槽の底に沈澱物はなく、白濁剤である酸化チタン
は安定に分散していた。Next, the water-containing powder was heated to 80 ° C.
The powder was placed on the roll to form a sheet. The sheet was repeatedly treated with two rolls and kneaded until a hard sheet was formed. The sheet was taken out from the two rolls, cooled to room temperature, and then pulverized by a hammer mill type pulverizer to a maximum particle size of 6 mm. Then pulverized with a jet mill type pulverizer, 200
A composition of a mesh pass was obtained. The composition is then added to 5
80 parts by weight of anhydrous sodium sulfate, 14 parts by weight of sodium hydrogencarbonate, and 1 part by weight of a fragrance are put into a V-type mixer by weight.
The mixture was stirred for 10 minutes to make 1 kg of a cloudy bath agent. When 20 g of this bathing agent was poured into 200 l of bath water at 40 ° C., the milk immediately turned milky cloudy. Twenty-four hours after bathing in this bath water, the upper layer of the bath water was removed and the turbidity was compared with that of the bath water immediately after the addition of the bath additive.
Further, there was no precipitate at the bottom of the bathtub, and titanium oxide as a clouding agent was stably dispersed.
【００１４】実施例２ 一次粒子径が０．２〜１．０μｍのベンガラ４００重量
部，低粘度のメチルセルロース１００重量部，水１００
重量部をニーダー中に投入し、常温で１時間撹拌混合し
た。この混合物を８０℃に加温した２本ロールを用いて
繰り返し混練処理し、ベンガラを微細な粒子に分散し
た。次いでこの分散シートを冷却し、ピンミルで２ｍｍ
粒度のチップ状に粉砕後、更にジェットミルで２００メ
ッシュに粉砕し、赤褐色の微粉水溶性樹脂組成物を得
た。Example 2 400 parts by weight of bengara having a primary particle diameter of 0.2 to 1.0 μm, 100 parts by weight of low-viscosity methylcellulose, 100 parts by weight of water
The weight part was put into a kneader, and the mixture was stirred and mixed at room temperature for 1 hour. This mixture was repeatedly kneaded using two rolls heated to 80 ° C. to disperse the bengara into fine particles. Then, the dispersion sheet was cooled and 2 mm
After pulverizing into a chip having a particle size, the mixture was further pulverized to 200 mesh by a jet mill to obtain a red-brown fine powdered water-soluble resin composition.
【００１５】次いでこの水溶性樹脂組成物の微粉体１０
重量部に炭酸水素ナトリウム８０重量部，硫酸ナトリウ
ム９重量部，香料１重量部を混合し入浴剤１Ｋｇを作っ
た。この入浴剤３０ｇを４０℃の浴湯２００ｌの中に投
入したところ、赤褐色懸濁浴が得られた。この浴湯は２
４時間後も沈澱物を発生せず、着色度も入浴剤投入時と
変わらなかった。Next, the fine powder of the water-soluble resin composition 10
80 parts by weight of sodium hydrogen carbonate, 9 parts by weight of sodium sulfate, and 1 part by weight of a fragrance were mixed with the parts by weight to prepare 1 kg of a bath agent. When 30 g of this bath agent was put into 200 l of bath water at 40 ° C., a reddish brown suspension bath was obtained. This bath is 2
After 4 hours, no precipitate was generated, and the degree of coloring was not different from that when the bath agent was added.
【００１６】[0016]
【発明の効果】本発明により、水に溶解しやすく、かつ
水系での分散安定性に優れるた入浴剤用組成物を提供で
きる。According to the present invention, it is possible to provide a composition for a bath agent which is easily dissolved in water and has excellent dispersion stability in an aqueous system.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平６−271458（ＪＰ，Ａ) 特開 平５−97657（ＪＰ，Ａ) 特開 平３−294220（ＪＰ，Ａ) 特開 平１−294618（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) A61K 7/50 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-271458 (JP, A) JP-A-5-97657 (JP, A) JP-A-3-294220 (JP, A) JP-A-1- 294618 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) A61K 7/50
Claims (2)
質からなる群から選ばれる水溶性高分子物質１０〜８０
部と水不溶性物質２０〜９０部からなる混合物を２本ロ
ールを用い高剪断力作用にて水不溶性物質を分散するこ
とを特徴とする入浴剤用組成物。1. A cellulosic polymer, a polysaccharide polymer
Water-soluble polymer substance selected from the group consisting of
A composition for a bath agent, comprising dispersing a water-insoluble substance by a high shearing force using a two-roll mixture of a mixture comprising 20 parts to 90 parts of a water-insoluble substance.
る請求項１記載の入浴剤組成物。2. The bath additive composition according to claim 1, wherein the water-insoluble substance is a pigment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05170401A JP3103706B2 (en) | 1993-07-09 | 1993-07-09 | Bath composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05170401A JP3103706B2 (en) | 1993-07-09 | 1993-07-09 | Bath composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0725747A JPH0725747A (en) | 1995-01-27 |
| JP3103706B2 true JP3103706B2 (en) | 2000-10-30 |
Family
ID=15904248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05170401A Expired - Fee Related JP3103706B2 (en) | 1993-07-09 | 1993-07-09 | Bath composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3103706B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010037265A (en) * | 2008-08-05 | 2010-02-18 | Tanpei Seiyaku Kk | Suspendible bath agent |
-
1993
- 1993-07-09 JP JP05170401A patent/JP3103706B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0725747A (en) | 1995-01-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |