JPS6317971A - Yeast fungal pigment and granulation thereof - Google Patents

Yeast fungal pigment and granulation thereof

Info

Publication number
JPS6317971A
JPS6317971A JP16272686A JP16272686A JPS6317971A JP S6317971 A JPS6317971 A JP S6317971A JP 16272686 A JP16272686 A JP 16272686A JP 16272686 A JP16272686 A JP 16272686A JP S6317971 A JPS6317971 A JP S6317971A
Authority
JP
Japan
Prior art keywords
yeast
pigment
parts
fine particle
particle powder
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.)
Granted
Application number
JP16272686A
Other languages
Japanese (ja)
Other versions
JPH0629370B2 (en
Inventor
Hideo Shimizu
秀夫 清水
Masaaki Otani
正昭 大谷
Hirokazu Okura
浩和 大倉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Paper Mills Ltd
Original Assignee
Mitsubishi Paper Mills Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Paper Mills Ltd filed Critical Mitsubishi Paper Mills Ltd
Priority to JP61162726A priority Critical patent/JPH0629370B2/en
Publication of JPS6317971A publication Critical patent/JPS6317971A/en
Publication of JPH0629370B2 publication Critical patent/JPH0629370B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

PURPOSE:To obtain a yeast fungal pigment suitable as fillers for imparting optical characteristics, etc., used in paper manufacturing, toners for PPC (plain paper copiers), cosmetics, etc., by applying fine particulate powder to the periphery of the yeast fungus. CONSTITUTION:(A) A yeast fungus, preferably consisting of baker's yeast or beer yeast is blended and dispersed with (B) fine particulate powder, preferably consisting of a white or color pigment having <=1mu average particle diameter in the presence of an aqueous solution containing a hydrophilic solvent to apply the above-mentioned fine particulate powder to the periphery of the above- mentioned yeast fungus. Thereby the aimed yeast fungal pigment is granulated.

Description

【発明の詳細な説明】 (A)産業上の利用分野 本発明は酵母菌を核として、その周囲に微粒子粉体を付
着させ、種々の機能を持つ顔料(以下酵母菌顔料という
)を得るもので、新らしい顔料および新らしい造粒方法
に関するものである。この酵母菌顔料は製紙用の光学的
特性等を付与する填料もしくは顔料、PPC用のトナー
、化粧品、その他は寸均−な粒子径の粉体を必要とする
産業に有用である。
Detailed Description of the Invention (A) Industrial Field of Application The present invention uses yeast as a core and attaches fine particle powder around it to obtain pigments with various functions (hereinafter referred to as yeast pigments). This article relates to a new pigment and a new granulation method. This yeast pigment is useful as a filler or pigment that imparts optical properties for paper manufacturing, toner for PPC, cosmetics, and other industries that require powder with a uniform particle size.

(B)従来の技術 日常我々の身の廻りでは種々の粉体もしくは顔料が使わ
れている。
(B) Conventional Technology Various powders or pigments are used in our daily life.

例えば、製紙用には、印刷適性、光学的特性等を与える
ため、白色顔料を多く用いてきた。即ち、填料として、
カオリン、タルク、炭酸カルシウム、酸化チタン等。こ
れらは、平均粒子径がサブミクロンから2〜3ミクロン
とかなり微細な粉体が多く、また粒度分布が狭いものも
広いものもある。
For example, white pigments have been widely used in paper manufacturing to provide printability, optical properties, and the like. That is, as a filler,
Kaolin, talc, calcium carbonate, titanium oxide, etc. Many of these powders are quite fine, with average particle diameters ranging from submicrons to 2 to 3 microns, and some have narrow particle size distributions while others have wide particle size distributions.

また密度は酸化チタンが約4、それ以外は約2.5程度
でパルプの約1.5に比べかなり大きい。このような微
細かつ密度の大きい顔料を紙の填料として用い、その充
填された状態を顕微鏡で観察すると、紙のフェルトサイ
ド(表側)には顔料の存在が見られるが、ワイヤーサイ
ド(裏側)には填料が流失するため顔料は極くわずかし
か見られない。
Further, the density of titanium oxide is about 4, and the density of other materials is about 2.5, which is considerably higher than that of pulp, which is about 1.5. When such fine and dense pigments are used as paper fillers and the filled state is observed under a microscope, the presence of pigments can be seen on the felt side (front side) of the paper, but on the wire side (back side). Since the filler is washed away, only a small amount of pigment can be seen.

これは抄紙工程において、一部の填料がワイヤーを通し
て流失していくことによるもので、填料の歩留りが低下
するのみならず所期の特性も十分発現できないことにな
る。
This is because some of the filler is washed away through the wire during the papermaking process, which not only lowers the filler yield but also prevents the desired properties from being fully expressed.

紙を構成する個々のパルプ繊維は、幅数子μ、長さ数m
mのものであり、これらのつくる網目構造を歩留り良く
充填し、更にはワイヤーからの流失を防ぐには10μ以
下(例えば5μ程度)の粒子径の良く揃った顔料か好ま
しい。これに対する改良方法として、あらかじめ凝集剤
を用いて填料を成る大きさに凝集させ、その後抄紙原料
と混合する方法(プレ凝集)が提案されている。これに
より歩留りは向上するが、凝集粒子のコントロールが難
かしいことなど必ずしも所期の特性が得られるとは言え
ない。
The individual pulp fibers that make up paper have a width of several μ and a length of several meters.
Pigments with well-uniform particle diameters of 10 μm or less (for example, about 5 μm) are preferable in order to fill the network structure formed by these pigments with a good yield and prevent them from being washed away from the wire. As an improvement method for this, a method has been proposed in which the filler is agglomerated in advance to a certain size using an aggregating agent and then mixed with the papermaking raw material (pre-agglomeration). Although this improves the yield, it cannot necessarily be said that the desired characteristics can be obtained because it is difficult to control aggregated particles.

また、OAの主要な機器で必るPPCにおいてはトナー
が用いられている。トナーは一般に5〜10μの粒子か
ら成っておりその粒子径および粒度分布がコピーの画質
(品質)に重大な影響を、与える。
Furthermore, toner is used in PPC, which is necessary for major OA equipment. Toner generally consists of particles of 5 to 10 microns, and the particle size and particle size distribution have a significant effect on the image quality of the copy.

このようなトナーを作るのには、一般にカーボンブラッ
ク等着色顔料、熱可塑性樹脂、添加剤等を溶融させ、そ
の溶融塊を機械的に砕いて作るもので、所望の粒度分布
のトナーを得るのには、非常な困難を伴なう。
To make this kind of toner, it is generally made by melting coloring pigments such as carbon black, thermoplastic resin, additives, etc., and then mechanically crushing the molten mass to obtain toner with the desired particle size distribution. involves great difficulty.

(C)発明の目的 本発明は新しいタイプの顔料及びその造粒方法に関する
ものである。
(C) Object of the Invention The present invention relates to a new type of pigment and a method for granulating the same.

製紙の充填剤について述べると、紙を構成する繊維の網
目構造を歩留り良く充填するには5μ程度の粒子径の揃
ったものが好ましい。
Regarding fillers for paper manufacturing, fillers with uniform particle diameters of about 5 μm are preferred in order to fill the network structure of fibers constituting paper with a good yield.

本発明者らは、造粒方法を鋭意検討した結果、酵母菌が
3〜6μの非円状等のほべ゛均一の粒子径を持つのに目
をつけ、これを核にして上記目的に合った顔料の造粒を
行おうとするものである。なお、この方法はPPCトナ
ーの造粒等にも応用が可能である。
As a result of intensive study on granulation methods, the present inventors noticed that yeast bacteria have a non-circular and generally uniform particle size of 3 to 6 microns, and used this as a core to achieve the above purpose. The aim is to granulate pigments that match each other. Note that this method can also be applied to granulation of PPC toner.

(D)発明の構成 本発明は酵母菌の周囲に微粒子粉体を付着させた酵母菌
顔料とその造粒方法であり、この方法は次の過程より成
る。
(D) Structure of the Invention The present invention is a yeast pigment in which fine powder particles are attached around yeast bacteria, and a method for granulating the same, and this method consists of the following steps.

即ち ■ 酵母菌の分散過程 ■ 微粒子顔料の分散過程 ■ 親水性溶媒の存在下で■、■の混合過程である。That is, ■ Yeast dispersion process ■ Dispersion process of fine particle pigments ■ This is the mixing process of ■ and ■ in the presence of a hydrophilic solvent.

本発明で使用される酵母菌とは、出芽もしくは***によ
り増殖する微生物の総称であるが、分類として有性生殖
を行なう有胞子酵母とそうでない無胞子酵母とに二大別
され、ともに真菌間に属する。
Yeast used in the present invention is a general term for microorganisms that proliferate by budding or fission, but it is divided into two categories: spore-bearing yeast that reproduce sexually and non-spore yeast that do not. belongs to

前者は子のう菌綱原始子のう菌目、エンドマイセタシ工
科[Endomycetaceae] 、後者は不完全
菌網、クリプトコツカシ工科[cryptococca
ceae ]に属する。
The former belongs to the order Protoascomycota of the class Ascomycota and the family Endomycetaceae.
ceae].

上記酵母菌体を構成する成分を大別するとイ、主に細胞
壁を構成するグルカン、マンナン質を基材とした水不溶
性成分 口、主に細胞膜を構成するリン脂質成分ハ、水、もしく
は極性溶媒に可溶性の酵素及びタンパク貿成分 に分けられ、これらは酵母の種類に応じ異なった配分を
取るが、本発明で用いられる酵母菌は組成の如何を問わ
ないものである。また、酵母菌は増殖機能の有無、すな
わち生きていても死んでいても本発明の効果には何ら影
響のないものである。
The components that make up the above yeast cells can be roughly divided into (a) water-insoluble components mainly consisting of glucans and mannans that make up the cell wall; (c) phospholipid components that mainly make up the cell membrane; and (c) water or polar solvents. It is divided into soluble enzymes and protein components, and these components are distributed differently depending on the type of yeast, but the composition of the yeast used in the present invention does not matter. Moreover, whether or not yeast has a growth function, that is, whether it is alive or dead, has no effect on the effects of the present invention.

酵母菌の形状は酵母の種類により卵円形、球形、レモン
形、柱状、楕円形など各種の形態のものがあるが、球形
、楕円形、卵円形のごとき形態が好ましい。
Yeast bacteria can have various shapes depending on the type of yeast, such as oval, spherical, lemon-shaped, columnar, and elliptical, but spherical, elliptical, and oval shapes are preferable.

酵母分散液を得る方法は、市販の酵母菌(パン酵母とし
てドライまたはペースト状態で市販されているもの等)
或いはビールの廃酵母等を水に分散させても良いし、或
いは炭素源、窒素源等の栄養素源を含む培地で酵母を増
殖させて得られたものをそのまま酵母分散液としても良
い。必要があればDH調節、或いは防腐剤の添加も施さ
れる。
The method for obtaining a yeast dispersion is to use commercially available yeast (such as those commercially available as baker's yeast in dry or paste form).
Alternatively, waste beer yeast or the like may be dispersed in water, or a yeast dispersion obtained by growing yeast in a medium containing a nutrient source such as a carbon source and a nitrogen source may be used as it is. If necessary, DH adjustment or preservatives may be added.

またこれに親水性溶媒を添加することも出来る。Moreover, a hydrophilic solvent can also be added to this.

酵母分散液中の酵母菌濃度(乾燥固形分濃度)は特に限
定はされないが、10〜30%(W/W)が望ましい。
The yeast concentration (dry solid content concentration) in the yeast dispersion is not particularly limited, but is preferably 10 to 30% (W/W).

この範囲以下では生産効率が低下する傾向があり、また
、30%以上になると、急激に分散液の粘度上昇が伴う
場合がある。
Below this range, production efficiency tends to decrease, and when it exceeds 30%, the viscosity of the dispersion may suddenly increase.

微粒子顔料の分散液を得る方法は、微粒子粉体と水とを
混合し回転式攪拌機等で良く分散する。
A method for obtaining a dispersion of the fine particle pigment is to mix the fine particle powder and water and disperse the mixture well using a rotary stirrer or the like.

この場合必要に応じ分散剤を使用することも出来る。ま
たこれに親水性溶媒を添加することも出来る。
In this case, a dispersant may be used if necessary. Moreover, a hydrophilic solvent can also be added to this.

微粒子粉体としては、 A、水または親水性の有機溶媒を含む水溶液に分散し易
いもの B、平均粒子径が1μ以下であること C9粒子径の分布がは寸均−であること等の特性が要求
される。
The fine particle powder has characteristics such as A. It is easily dispersible in water or an aqueous solution containing a hydrophilic organic solvent. B. The average particle size is 1 μ or less. C9. The particle size distribution is uniform. is required.

この目的に使用され得る微粒子粉体としては、酸化チタ
ン、カオリン、炭酸カルシウム、シリカ、水酸化アルミ
ニウム、尿素ホルマリン樹脂、カーボンブラック等が挙
げられる。
Particulate powders that can be used for this purpose include titanium oxide, kaolin, calcium carbonate, silica, aluminum hydroxide, urea-formalin resin, carbon black, and the like.

なお、このような粉体を効率良く酵母菌に付着させるた
め、天然もしくは合成樹脂等添加物の使用も可能である
In addition, in order to efficiently attach such powder to yeast, it is also possible to use additives such as natural or synthetic resins.

親水性溶媒は、酵母菌表面に微粒子粉体を付着させるの
に必要である。本発明に使用され得る親水性溶媒として
は (a)炭素数1〜3の低級アルコール類(b)アセトン
等ケトン類 (C)エチレングリコール等多価アルコール類等が挙げ
られる。
A hydrophilic solvent is necessary to attach the particulate powder to the yeast surface. Hydrophilic solvents that can be used in the present invention include (a) lower alcohols having 1 to 3 carbon atoms, (b) ketones such as acetone, and (C) polyhydric alcohols such as ethylene glycol.

これらの溶媒は、1〜40%、好ましくは3〜20%水
性溶液になるようにして用いられる。
These solvents are used to give a 1-40% aqueous solution, preferably a 3-20% aqueous solution.

酵母分散液、微粒子粉体分散液、親水性溶媒を含む水性
溶液は一つの容器の中で混合し回転式攪拌機等により混
合攪拌を続けると、微粒子粉体が酵母菌の周囲に付着し
てくる。
When an aqueous solution containing a yeast dispersion, a fine particle powder dispersion, and a hydrophilic solvent are mixed in one container and mixed and stirred using a rotary stirrer, etc., the fine particle powder will adhere to the surroundings of the yeast bacteria. .

酵母菌と微粒子粉体の比率は、粉体の形状、大きさ、使
用目的等により異なるが、重量比で1:0.2〜1:1
0好ましくは1:0.5〜1:5が好ましい。
The ratio of yeast to fine powder varies depending on the shape, size, purpose of use, etc. of the powder, but the weight ratio is 1:0.2 to 1:1.
0, preferably 1:0.5 to 1:5.

またこの方法は、必ずしも高温、特別なII域等は必要
なく、比較的短時間に造粒が行われることもその特徴と
して上げられる。
Another feature of this method is that it does not necessarily require high temperatures, special II ranges, etc., and granulation can be carried out in a relatively short time.

このようにして得られた酵母菌顔料は、卵内状等の形の
酵母園側々の粒子を核として同様の形に造粒されている
。これは、成る特定の大きさの粉体を必要とする分野、
たとえば製紙工程の充填、塗工、或いはPPC用のトナ
ーの造粒等に非常に有効に用いられる。
The yeast pigment thus obtained is granulated into a similar shape using particles on the sides of the yeast garden in the shape of an oval or the like as cores. This consists of areas that require powder of a specific size,
For example, it is very effectively used for filling and coating in paper manufacturing processes, or for granulating toner for PPC.

(E)実施例及び参考例 実施例及び参考例によって本発明を更に詳しく説明する
。実施例及び参考例等に示された酵母菌重量は全て乾燥
脱水状態(菌体内、菌体外とも)での重量部数を表わす
。また粉体等のそれも重量部を表わす。
(E) Examples and Reference Examples The present invention will be explained in more detail by Examples and Reference Examples. All yeast weights shown in Examples, Reference Examples, etc. represent the number of parts by weight in a dry and dehydrated state (both inside and outside the cells). In addition, parts such as powders are also expressed in parts by weight.

実施例−1 市販の酸化チタンW−10(6原産業(株)製粒子径0
.2〜0.3μ>100部と水120部を容器に取り、
回転式攪拌機を用いて混合分散した。
Example-1 Commercially available titanium oxide W-10 (manufactured by 6 Hara Sangyo Co., Ltd., particle size 0)
.. Take 2~0.3μ>100 parts and 120 parts of water in a container,
The mixture was mixed and dispersed using a rotary stirrer.

次に市販のパン酵母(オリエンタル酵母(株)製生イー
スト、サツ力ロマイセスセレビッシェ(SaCChar
olllVCeS CereViSiae) 50部を
含む水分散液250部(菌体濃度20%)をつくった。
Next, commercially available baker's yeast (Oriental Yeast Co., Ltd. yeast), Satsuromyces cerevisiae (SaCChar
250 parts of an aqueous dispersion (20% bacterial cell concentration) containing 50 parts of C. olllVCeS CereViSiae) was prepared.

これに上記酸化チタン水分散液を添加し回転式攪拌機を
用いて均一に混合したのち、エチルアルコールを50部
添加し、約1時間混合攪拌を続は酵母菌顔料を得た。こ
の酵母菌顔料を乾燥し電子顕微鏡で観察すると、図1に
示すように個々の菌体の表面に酸化チタンの微粒子が一
様に付着している状態が見られた。
The titanium oxide aqueous dispersion was added thereto and mixed uniformly using a rotary stirrer, then 50 parts of ethyl alcohol was added and the mixture was mixed and stirred for about 1 hour to obtain a yeast pigment. When this yeast pigment was dried and observed under an electron microscope, it was found that fine particles of titanium oxide were uniformly attached to the surface of each bacterial cell, as shown in FIG.

実施例−2 市販の炭酸カルシウム白艶華PX(白石工業(株)製、
粒子径約0.1μ、固形分50%のペースト)150部
に50部の水を添加し良く混合した。
Example-2 Commercially available calcium carbonate Hakuenka PX (manufactured by Shiroishi Kogyo Co., Ltd.)
50 parts of water was added to 150 parts of paste (particle size: about 0.1 μm, solid content: 50%) and mixed well.

次に市販のパン酵母(オリエンタル酵母(株)製生イー
スト、サツ力ロマイセスセレビッシエ(Sacchar
omyces cerevisiae) 50部を含む
水分散液250部(菌体濃度20%)をつくった。
Next, commercially available baker's yeast (Oriental Yeast Co., Ltd. yeast, Saccharomyces cerevisiae)
omyces cerevisiae) 250 parts of an aqueous dispersion (20% bacterial cell concentration) was prepared.

これに上記炭酸カルシウム水分散液を添加し回転式攪拌
機を用いて均一に混合したのち、エチルアルコールを5
0部添加し約1時間混合攪拌を続は酵母菌顔料を得た。
Add the above calcium carbonate aqueous dispersion to this and mix uniformly using a rotary stirrer, then add 55% of ethyl alcohol.
After adding 0 parts and mixing and stirring for about 1 hour, a yeast pigment was obtained.

この酵母菌顔料を乾燥し電子顕微鏡で観察すると、図2
に示すように個々の菌体の表面に炭酸カルシウムの微粒
子が一様に付着している状態が見られた。
When this yeast pigment was dried and observed under an electron microscope, the results were as shown in Figure 2.
As shown in Figure 2, calcium carbonate particles were observed to be uniformly attached to the surface of each bacterial cell.

実施例−3 市販の酸化チタンW−’!O(6原産業(株)製粒子径
0.2〜0.3μ>100部と水120部を混合し分散
した。
Example-3 Commercially available titanium oxide W-'! 100 parts of O (manufactured by 6 Hara Sangyo Co., Ltd., particle size: 0.2-0.3μ) and 120 parts of water were mixed and dispersed.

次にビール酵母(キリンビール(株)製生イースト、サ
ツ力ロマイセスカールスバーゲンシス(Sacchar
omyces carlsbergensis) 5 
Q部を含む水分散液250部(菌体濃度20%)をつく
った。
Next, brewer's yeast (produced yeast produced by Kirin Brewery Co., Ltd.), Saccharomyces carlsbergensis (Sacchar
omyces carlsbergensis) 5
250 parts of an aqueous dispersion containing part Q (bacterial cell concentration 20%) was prepared.

これに上記酸化チタン水分散液を添加し回転式攪拌機を
用いて均一に混合分散したのち、エチルアルコールを5
0部添加し約1時間混合攪拌を続は酵母菌顔料を得た。
After adding the titanium oxide aqueous dispersion to this and uniformly mixing and dispersing it using a rotary stirrer, 55% of ethyl alcohol was added.
After adding 0 parts and mixing and stirring for about 1 hour, a yeast pigment was obtained.

この酵母菌顔料を乾燥し電子顕微鏡で観察すると、個々
の菌体の表面に酸化チタンの微粒子が一様に付着してい
る状態が見られた。
When this yeast pigment was dried and observed under an electron microscope, it was found that fine particles of titanium oxide were uniformly attached to the surface of each bacterial cell.

実施例−4 エチルアルコール50部の代りにアセトン20部を用い
た以外は実施例1と同様にして酸化チタンの微粒子によ
る酵母菌顔料を得た。
Example 4 A yeast pigment made of fine particles of titanium oxide was obtained in the same manner as in Example 1 except that 20 parts of acetone was used instead of 50 parts of ethyl alcohol.

比較例−1 エチルアルコール50部を除いた以外は実施例1と同様
にして酵母菌顔料を得るべく試みた。しかしながら、図
3に示すように酸化チタンの微粒子は菌体表面に均一な
付着はせず、単に混合しただけの状態に過き゛なかった
Comparative Example 1 An attempt was made to obtain a yeast pigment in the same manner as in Example 1 except that 50 parts of ethyl alcohol was removed. However, as shown in FIG. 3, the titanium oxide fine particles did not adhere uniformly to the surface of the bacterial cells, but were simply mixed together.

比較例−2 市販の炭酸カルシウム、ニスカロン#100(三共製粉
(製)重質炭酸カルシウム、平均粒子径2μ、粒度分布
が広い>100部と水100部を混合分散した。次に市
販のパン酵母(オリエンタル酵母(株)製生イースト、
サツ力ロマイセスセレビツシエ(Saccharomy
ces cerevisiae) 50部を含む水分散
液250部(菌体濃度20%)をつくった。
Comparative Example-2 100 parts of commercially available calcium carbonate, Niscalon #100 (manufactured by Sankyo Seifun Co., Ltd.) heavy calcium carbonate, average particle size 2μ, wide particle size distribution>100 parts, and water were mixed and dispersed.Next, commercially available baker's yeast was mixed and dispersed. (Yeast produced by Oriental Yeast Co., Ltd.,
Saccharomyces cerevisiae
ces cerevisiae) 250 parts of an aqueous dispersion (20% bacterial cell concentration) was prepared.

これに上記炭酸カルシウム水分散液を添加し回転式攪拌
機を用いて均一に混合分散したのち、エチルアルコール
を50部添加し混合攪拌を更に続けた。1時間後この酵
母菌を乾燥し電子顕微鏡で観察すると、図4に示すよう
に炭酸カルシウムは個々の菌体の表面には付着せず、単
に混合されている状態に過ぎなかった。
The calcium carbonate aqueous dispersion was added thereto and mixed and dispersed uniformly using a rotary stirrer, then 50 parts of ethyl alcohol was added and mixing and stirring was further continued. After one hour, the yeast cells were dried and observed under an electron microscope. As shown in FIG. 4, calcium carbonate did not adhere to the surface of individual cells, but was simply mixed together.

比較例−3 実施例−1の方法で酸化チタン15部、水を20部とし
同様の操作で処理を行なった。これを乾燥し電子顕微鏡
で観察したところ、酸化チタンは個々の菌体の表面には
付着せず、単に混合されている状態に過ぎなかった。
Comparative Example 3 A treatment was carried out in the same manner as in Example 1 using 15 parts of titanium oxide and 20 parts of water. When this was dried and observed under an electron microscope, it was found that titanium oxide did not adhere to the surface of individual bacterial cells, but was simply mixed together.

参考例−1 実施例1で得られた酵母菌顔料を用いて下記の配合によ
り手抄紙を作った。
Reference Example-1 Using the yeast pigment obtained in Example 1, handmade paper was made according to the following formulation.

記 LBKP (広葉樹パルプ)  70部NBKP (針
葉樹パルプ>   30部(両者を混合し叩解度430
C3Fににする)酵母菌顔料(固形分換算)  15部 (酸化チタンとして10部) ニューホール1100  、     1部(ディック
バーキュレス(株)製ロジンエマルジョン) 硫酸バンド          3部 これらを混合して0.7%の濃度に調製し抄紙原料とし
、J I S P8209に準拠した手抄試験装置を用
いて抄紙し、常法により加圧脱水、乾燥、カレンダー処
理を行ない手抄紙を作った。この時の填料(酵母菌顔料
)の歩留りは約90%に達した。
LBKP (hardwood pulp) 70 parts NBKP (softwood pulp> 30 parts (both are mixed and the beating degree is 430)
(converted to C3F) Yeast pigment (solid content) 15 parts (10 parts as titanium oxide) Newhall 1100, 1 part (Rosin emulsion manufactured by Dick Bercules Co., Ltd.) Sulfuric acid band 3 parts Mix these to 0. This was prepared to a concentration of .7% and used as a raw material for papermaking, and was made into paper using a handsheet tester compliant with JIS P8209, followed by pressurized dehydration, drying, and calendering in a conventional manner to produce handmade paper. The yield of the filler (yeast pigment) at this time reached approximately 90%.

また、この手抄紙の不透明度は91%であった。Moreover, the opacity of this handmade paper was 91%.

比較例−4 酵母菌顔料15部(酸化チタンとして10部)の代りに
、酸化チタンW−10(6原産業(株)製)10部を用
いた外は、参考例−1と同様の方法で手抄紙を作った。
Comparative Example-4 Same method as Reference Example-1 except that 10 parts of titanium oxide W-10 (manufactured by 6 Hara Sangyo Co., Ltd.) was used instead of 15 parts of yeast pigment (10 parts as titanium oxide). I made handmade paper.

この時の酸化チタンの歩留りは、約75%に過ぎなかっ
た。またその手抄紙の不透明度は85%であった。
The yield of titanium oxide at this time was only about 75%. The opacity of the handmade paper was 85%.

上記参考例及び比較例−4に見るように酵母菌顔料を紙
の填料として用いた場合、填料の歩留りおよび光学的特
性に非常に大きな効果をもたらすことがわかる。
As seen in the above-mentioned Reference Example and Comparative Example-4, it can be seen that when yeast pigment is used as a paper filler, it has a very large effect on the yield and optical properties of the filler.

(F)発明の効果 実施例の結果より、酵母菌、微粒子粉体、親水性溶媒の
組み合せにより、酵母菌表面に微粒子粉体を均一に付着
させることが出来るようになった。
(F) Effect of the Invention From the results of the Examples, it has become possible to uniformly adhere the fine particle powder to the surface of the yeast cell by the combination of the yeast bacteria, the fine particle powder, and the hydrophilic solvent.

その結果、製紙工程の填料への応用で填料歩留り、光学
的特性の向上等に見られるように、従来の技術では達成
できなかった新しい効果をもたらすことが可能になった
As a result, it has become possible to bring about new effects that could not be achieved with conventional techniques, such as improved filler yield and optical properties when applied to fillers in the paper manufacturing process.

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

第1〜5図は、酵母菌の周囲の微粒子粉体の付着状態で
、図面に明瞭に表わすことは極めて困難なため写真を使
用。 第1図は、本発明の実施例1の酵母菌顔料の走査顕微鏡
写真。 第2図は、本発明の実施例2の酵母菌顔料の走査顕微鏡
写真。 第3図は、本発明の比較例1の状態の走査顕微鏡写真。 第4図は、本発明の比較例2の状態の走査顕微鏡写真。 第5図は、本発明の実施例、比較例に用いられているパ
ン酵母菌の走査顕微鏡写真。 第1図 第2rI!J 第3図 *qm
Figures 1 to 5 show the state of adhesion of fine particles around yeast, which is extremely difficult to clearly represent in drawings, so photographs are used. FIG. 1 is a scanning micrograph of the yeast pigment of Example 1 of the present invention. FIG. 2 is a scanning micrograph of the yeast pigment of Example 2 of the present invention. FIG. 3 is a scanning micrograph of the state of Comparative Example 1 of the present invention. FIG. 4 is a scanning micrograph of the state of Comparative Example 2 of the present invention. FIG. 5 is a scanning micrograph of baker's yeast used in Examples and Comparative Examples of the present invention. Figure 1 2rI! J Figure 3 *qm

Claims (7)

【特許請求の範囲】[Claims] (1)酵母菌の周囲に該微粒子粉体を付着させたことを
特徴とする酵母菌顔料。
(1) A yeast pigment characterized in that the fine particle powder is attached around yeast bacteria.
(2)酵母菌がパン酵母、ビール酵母、である特許請求
の範囲第1項記載の酵母菌顔料。
(2) The yeast pigment according to claim 1, wherein the yeast is baker's yeast or brewer's yeast.
(3)微粒子粉体が、平均粒子径1μ以下の白色または
有色顔料である特許請求の範囲第1項または第2項記載
の酵母菌顔料。
(3) The yeast pigment according to claim 1 or 2, wherein the fine particle powder is a white or colored pigment with an average particle diameter of 1 μm or less.
(4)酵母菌と微粒子粉体を親水性溶媒を含む水性溶液
の存在下で混合分散することにより、該酵母菌の周囲に
該微粒子粉体を付着させて得る酵母菌顔料の造粒方法。
(4) A method for granulating yeast pigment, which is obtained by mixing and dispersing yeast and fine particle powder in the presence of an aqueous solution containing a hydrophilic solvent, thereby adhering the fine particle powder around the yeast.
(5)酵母菌がパン酵母、ビール酵母、である特許請求
の範囲第4項記載の酵母菌顔料の造粒方法。
(5) The method for granulating yeast pigment according to claim 4, wherein the yeast is baker's yeast or brewer's yeast.
(6)親水性溶媒が、炭素数1〜3の低級アルコール、
ケトン類、多価アルコール類である特許請求の範囲第4
項または第5項記載の酵母菌顔料の造粒方法。
(6) The hydrophilic solvent is a lower alcohol having 1 to 3 carbon atoms,
Claim 4 which is ketones and polyhydric alcohols
A method for granulating a yeast pigment according to item 1 or 5.
(7)微粒子粉体が、平均粒子径1μ以下の白色または
有色顔料である特許請求の範囲第4項または第5項また
は第6項記載の酵母菌顔料の造粒方法。
(7) The method for granulating a yeast pigment according to claim 4, 5, or 6, wherein the fine particle powder is a white or colored pigment with an average particle diameter of 1 μm or less.
JP61162726A 1986-07-09 1986-07-09 Yeast pigment and granulation method thereof Expired - Lifetime JPH0629370B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61162726A JPH0629370B2 (en) 1986-07-09 1986-07-09 Yeast pigment and granulation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61162726A JPH0629370B2 (en) 1986-07-09 1986-07-09 Yeast pigment and granulation method thereof

Publications (2)

Publication Number Publication Date
JPS6317971A true JPS6317971A (en) 1988-01-25
JPH0629370B2 JPH0629370B2 (en) 1994-04-20

Family

ID=15760107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61162726A Expired - Lifetime JPH0629370B2 (en) 1986-07-09 1986-07-09 Yeast pigment and granulation method thereof

Country Status (1)

Country Link
JP (1) JPH0629370B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51128478A (en) * 1975-05-01 1976-11-09 Sanraku Inc Process for drying microbial cells
JPS615777A (en) * 1984-05-11 1986-01-11 ナビスコ ブランズ インコ−ポレ−テツド Rehydratable instant active dry yeast

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51128478A (en) * 1975-05-01 1976-11-09 Sanraku Inc Process for drying microbial cells
JPS615777A (en) * 1984-05-11 1986-01-11 ナビスコ ブランズ インコ−ポレ−テツド Rehydratable instant active dry yeast

Also Published As

Publication number Publication date
JPH0629370B2 (en) 1994-04-20

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