JP2846823B2 - Method for counting the number of insolubles in aqueous solution of carboxymethyl cellulose ether alkaline salt - Google Patents

Method for counting the number of insolubles in aqueous solution of carboxymethyl cellulose ether alkaline salt

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Publication number
JP2846823B2
JP2846823B2 JP29436194A JP29436194A JP2846823B2 JP 2846823 B2 JP2846823 B2 JP 2846823B2 JP 29436194 A JP29436194 A JP 29436194A JP 29436194 A JP29436194 A JP 29436194A JP 2846823 B2 JP2846823 B2 JP 2846823B2
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JP
Japan
Prior art keywords
aqueous solution
cmc
insolubles
sample
counting
Prior art date
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JP29436194A
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Japanese (ja)
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JPH08151401A (en
Inventor
正憲 和久井
美智子 高橋
康之 高村
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.)
DAIICHI KOGYO SEIYAKU KK
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DAIICHI KOGYO SEIYAKU KK
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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】この発明は、カルボキシメチルセ
ルロースエーテルアルカリ塩(以下「CMC」という)
水溶液中の不溶解物の個数を高い精度でしかも簡単に測
定することが可能なCMC水溶液中の不溶解物の個数測
定方法に関するものである。
BACKGROUND OF THE INVENTION The present invention relates to a carboxymethyl cellulose ether alkali salt (hereinafter referred to as "CMC").
The present invention relates to a method for measuring the number of insolubles in a CMC aqueous solution that can easily and easily measure the number of insolubles in an aqueous solution.

【0002】[0002]

【従来の技術】CMCは、合成糊料として利用されてお
り、その用途は、織物加工糊,紙サイズ,洗浄剤,増粘
剤等の多岐に渡っている。通常、このCMCは、これを
水に溶解し、CMC水溶液として用いられる。したがっ
て、CMCを用いて得られる製品の品質やコストの観点
から、CMCが水に完全溶解することが好ましい。この
ため、CMCの製造会社等において、CMCの品質管理
の一環として、CMC水溶液中の不溶解物の測定が行わ
れている。従来から行われているCMC水溶液中の不溶
解物の測定法としては、CMC水溶液を肉眼で観察する
という直接的な方法の他に、CMC水溶液を濾紙で濾過
し、その濾紙の初期重量と濾過後重量との差を測定する
濾過法や、CMC水溶液を遠心分離し不溶解物を沈降さ
せてその重量を測定する遠心分離法等があげられる。
2. Description of the Related Art CMC is used as a synthetic paste, and its application is wide-ranging, such as woven fabric paste, paper size, detergent, and thickener. Usually, this CMC is used as a CMC aqueous solution by dissolving it in water. Therefore, it is preferable that the CMC be completely dissolved in water from the viewpoint of the quality and cost of products obtained using the CMC. For this reason, CMC manufacturers measure the insolubles in the CMC aqueous solution as part of the quality control of the CMC. Conventional methods for measuring insolubles in an aqueous solution of CMC include, in addition to the direct method of observing the aqueous solution of CMC with the naked eye, filtering of the aqueous solution of CMC with filter paper, and the initial weight of the filter paper and the filtration. Examples include a filtration method for measuring the difference from the post-weight, and a centrifugation method for centrifuging the CMC aqueous solution to precipitate insoluble matter and measuring the weight.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、従来の
CMC水溶液の不溶解物の測定法は、不溶解物の個数を
直接測定することが不可能であるため、CMCの品質を
正確に把握することが困難である。また、これら従来の
測定法は、操作が煩雑であり、しかも濾過法等は、一回
の操作に約30分の長時間を必要とする。そして、これ
らの方法は、測定精度が低く、再現性が悪いという問題
もある。したがって、従来のCMC水溶液の不溶解物の
測定法では、CMCの品質管理を充分に行うことができ
ず、その測定結果を、CMCの品質向上のための技術開
発に反映させることができないのが現状である。
However, the conventional method for measuring insoluble matter in an aqueous solution of CMC cannot accurately measure the number of insoluble matter, so that the quality of CMC must be accurately grasped. Is difficult. In addition, these conventional measurement methods are complicated in operation, and the filtration method and the like require a long time of about 30 minutes for one operation. In addition, these methods have a problem that measurement accuracy is low and reproducibility is poor. Therefore, the conventional method of measuring the insoluble matter of the CMC aqueous solution cannot sufficiently control the quality of the CMC, and the measurement result cannot be reflected in the technical development for improving the quality of the CMC. It is the current situation.

【0004】この発明は、このような事情に鑑みなされ
たもので、CMC水溶液の不溶解物の個数を直接的に、
かつ簡単に高精度で測定できるCMC水溶液中の不溶解
物の個数測定方法の提供をその目的とする。
[0004] The present invention has been made in view of such circumstances, and directly determines the number of insolubles in an aqueous CMC solution.
It is another object of the present invention to provide a method for measuring the number of insolubles in a CMC aqueous solution that can be easily and accurately measured.

【0005】[0005]

【課題を解決するための手段】上記課題を解決するため
に、この発明のCMC水溶液中の不溶解物の個数測定法
は、CMC試料水溶液中の不溶解物の個数を測定するに
あたり、透明容器内に、上記の試料水溶液を膜状に展開
させ、この状態で、撮像機により上記膜状に展開された
試料水溶液を連続的に撮像し、この撮像により得られる
単独あるいは複数の静止画像から不溶解物を計数すると
いう構成をとる。
Means for Solving the Problems In order to solve the above-mentioned problems, a method for counting the number of insolubles in a CMC aqueous solution according to the present invention is a method for measuring the number of insolubles in a CMC sample aqueous solution. In this state, the sample aqueous solution is developed in a film form. In this state, the image of the sample aqueous solution developed in the form of a film is continuously imaged by an image pickup device. It is configured to count lysates.

【0006】[0006]

【作用】上記のように、この発明のCMC水溶液中の不
溶解物の個数測定法は、CMC試料水溶液を膜状に展開
し、この膜状に展開されたCMC試料水溶液を撮像機に
より撮像して静止画像として捉える。これにより、CM
C試料水溶液中の不溶解物を正確に捉えることが可能と
なる。そして、上記撮像機で捉えたCMC試料水溶液の
静止画像から、例えば、画像処理手段により不溶解物を
判別して計数するため、CMC試料水溶液中の不溶解物
の個数を約1分間の短時間で簡単に測定することが可能
となる。
As described above, the method for counting the number of insolubles in the CMC aqueous solution according to the present invention is to develop the CMC sample aqueous solution into a film and take an image of the CMC sample aqueous solution developed in the film with an imager. As a still image. With this, CM
Insoluble matter in the C sample aqueous solution can be accurately captured. Then, from the still image of the CMC sample aqueous solution captured by the imager, for example, in order to discriminate and count the insoluble matter by the image processing means, the number of the insoluble matter in the CMC sample aqueous solution is reduced for about 1 minute. And it can be easily measured.

【0007】つぎに、この発明を詳しく説明する。Next, the present invention will be described in detail.

【0008】この発明のCMC水溶液の不溶解物の個数
測定法は、CMC試料水溶液および撮像機を用いて行わ
れる。
[0008] The method for counting the number of insolubles in a CMC aqueous solution according to the present invention is performed using a CMC sample aqueous solution and an imager.

【0009】上記CMC試料水溶液は、CMCを水に溶
解して調製される。このCMCとしては、特に制限する
ものではなく、種々のCMCに対し、この発明を適用す
ることが可能である。特に、エーテル置換度が0.3〜
2.8で、塩の種類が、ナトリウム(Na+ ),カリウ
ム(K+ ),アンモニウム(NH4 + )のCMCに対
し、この発明の測定法を適用すると好結果を得ることが
できる。また、CMC試料水溶液の濃度は、通常0.0
01〜1.0重量%(以下「%」と略す)の範囲に設定
され、好ましくは、0.01〜0.5%の範囲である。
The CMC sample aqueous solution is prepared by dissolving CMC in water. The CMC is not particularly limited, and the present invention can be applied to various CMCs. In particular, the degree of ether substitution is 0.3 to
In 2.8, a good result can be obtained by applying the measuring method of the present invention to CMC whose salt is sodium (Na + ), potassium (K + ), or ammonium (NH 4 + ). The concentration of the CMC sample aqueous solution is usually 0.0
It is set in the range of 01 to 1.0% by weight (hereinafter abbreviated as "%"), and preferably in the range of 0.01 to 0.5%.

【0010】また、上記CMC試料水溶液は、電解質を
添加し、電解質水溶液とすることが好ましい。すなわ
ち、電解質を添加することにより、CMC試料水溶液中
の半溶解状態の不溶解物の存在を顕在化させ、測定精度
を向上させることが可能となる。上記電解質としては、
例えば、NaCl,MgCl2 ,KCl,K2 CO3
あげられる。このなかでも、半溶解状態の不溶解物の顕
在化が優れるという理由から、KCl,NaClが好ま
しい。そして、通常、この電解質の濃度は、試料水溶液
全体に対し、5〜30%の範囲であり、好ましくは10
〜20%の範囲である。
It is preferable that an electrolyte is added to the CMC sample aqueous solution to form an electrolyte aqueous solution. That is, by adding an electrolyte, the presence of a semi-dissolved insoluble matter in the CMC sample aqueous solution can be made obvious, and the measurement accuracy can be improved. As the electrolyte,
For example, NaCl, MgCl 2 , KCl, K 2 CO 3 can be mentioned. Among these, KCl and NaCl are preferable because the insolubilized substance in a semi-dissolved state is excellent. Usually, the concentration of the electrolyte is in the range of 5 to 30% with respect to the whole sample aqueous solution, preferably 10 to 30%.
-20%.

【0011】そして、不溶解物の識別を容易にする目的
で、CMC試料水溶液に染料を添加することが好まし
い。この染料としては、カチオン系染料はCMCと塩を
形成することから、アニオン系染料を使用することが好
ましい。このアニオン系染料の具体例としては、Sum
ifix Black B(商品名、住友化学社製),
Sumifix Brilliant Violet
B(商品名、住友化学社製),Sumifix Bri
lliant Orange RR(商品名、住友化学
社製),Sumilight Supra Blue
G(商品名,住友化学社製),Aizen Direc
t Fast Orange S(商品名,保土谷化学
工業社製),Kayafect Orange S(商
品名,日本化薬社製),Kayafect Blue
B(商品名,日本化薬社製),Kayafect Bl
ack S(商品名,日本化薬社製),Kayacio
nBlue P−3R(商品名,日本化薬社製),オレ
ンジII, コンゴーレッド,メチルオレンジ等があげられ
る。そして、染料の配合は、予め、染料を水に溶解して
1〜10%の染料水溶液を調製し、この染料水溶液を、
CMC試料水溶液100重量部(以下「部」と略す)に
対し、0.01〜5部の範囲で配合することが好まし
い。
It is preferable to add a dye to the CMC sample aqueous solution for the purpose of facilitating identification of insoluble matter. As the dye, an anionic dye is preferably used because a cationic dye forms a salt with CMC. Specific examples of this anionic dye include Sum
ifix Black B (trade name, manufactured by Sumitomo Chemical Co., Ltd.),
Sumfix Brilliant Violet
B (trade name, manufactured by Sumitomo Chemical Co., Ltd.), Sumifix Bri
lliant Orange RR (trade name, manufactured by Sumitomo Chemical Co., Ltd.), Sumilight Supra Blue
G (trade name, manufactured by Sumitomo Chemical Co., Ltd.), Aizen Direc
t Fast Orange S (trade name, manufactured by Hodogaya Chemical Industry Co., Ltd.), Kayafect Orange S (trade name, manufactured by Nippon Kayaku Co., Ltd.), Kayafect Blue
B (trade name, manufactured by Nippon Kayaku Co., Ltd.), Kayafect Bl
ack S (trade name, manufactured by Nippon Kayaku Co., Ltd.), Kayacio
nBlue P-3R (trade name, manufactured by Nippon Kayaku Co., Ltd.), Orange II, Congo Red, methyl orange and the like. The dye is prepared in advance by dissolving the dye in water to prepare a 1 to 10% aqueous dye solution.
It is preferable to mix 0.01 to 5 parts by weight with respect to 100 parts by weight of the CMC sample aqueous solution (hereinafter abbreviated as “parts”).

【0012】つぎに、この発明のCMC水溶液の不溶解
物の個数測定法に使用する測定装置の一例について説明
する。
Next, an example of a measuring device used in the method for counting the number of insolubles in the CMC aqueous solution according to the present invention will be described.

【0013】図1は、この発明に使用される測定装置の
一例の構成図である。図示のように、サンプルチューブ
1内のCMC試料水溶液は、ポンプ3により、流路2を
通り、透明容器(透明セル)4に定量的に注入される。
透明セル4に注入されたCMC試料水溶液は、透明セル
4内の平板状内形状に沿って均一厚みの板状(膜状)に
展開され、均一厚みの液膜となる。このCMC試料水溶
液の液膜の厚みは、通常、50〜200μmの範囲であ
る。この液膜の厚みは、CMC試料水溶液の透明セル4
に対する注入速度を調整することにより、適宜設定する
ことが可能となる。そして、上記CMC試料水溶液が膜
状に展開された状態で、撮像機5〔例えば、電荷結合素
子カメラ(CCDカメラ)〕を用い、透明セル4内のC
MC試料水溶液を撮像して静止画像として捉える。つぎ
に、撮像機5で捉えられた静止画像を、陰極線管(CR
T)ディスプレー7に表示し、測定者が直接CMC試料
水溶液中の不溶解物の個数を計数するか、あるいは、画
像処理手段6により、CMC試料水溶液中の不溶解物を
識別し、不溶解物の個数計数を行う。そして、この個数
計数結果をCRTディスプレー7に表示する。
FIG. 1 is a configuration diagram of an example of a measuring device used in the present invention. As shown in the drawing, the CMC sample aqueous solution in the sample tube 1 is quantitatively injected into a transparent container (transparent cell) 4 through a flow path 2 by a pump 3.
The CMC sample aqueous solution injected into the transparent cell 4 is developed into a plate (film) having a uniform thickness along the inner shape of the flat plate inside the transparent cell 4 to form a liquid film having a uniform thickness. The thickness of the liquid film of the CMC sample aqueous solution is usually in the range of 50 to 200 μm. The thickness of this liquid film is determined by the transparent cell 4 of the CMC sample aqueous solution.
By adjusting the injection speed with respect to, it is possible to set appropriately. Then, in the state where the CMC sample aqueous solution is developed in a film form, the CMC in the transparent cell 4 is
The MC sample aqueous solution is imaged and captured as a still image. Next, a still image captured by the imaging device 5 is converted into a cathode ray tube (CR).
T) Display on the display 7 and the measurer directly counts the number of insolubles in the CMC sample aqueous solution, or identifies the insolubles in the CMC sample aqueous solution by the image processing means 6 and Is counted. Then, the counting result is displayed on the CRT display 7.

【0014】また、上記測定法では、透明セル4中の試
料水溶液が静止した状態で撮像する場合について説明し
たが、これに限定されるものではなく、試料水溶液が流
動している状態で撮像してもよい。具体的に説明する
と、図1において、ポンプ3によりCMC試料水溶液を
上記透明セル4へ連続注入して上記試料水溶液を連続的
に膜状に展開する。そして、これを上記撮像機5により
連続撮像する。この連続撮像は、例えば、1/30秒単
位で行われる。そして、この撮像間隔と、上記試料水溶
液の流速との関係から、上記画像処理手段6により、試
料水溶液中の単位容積当たりの不溶解物の個数が計数で
きる。このように、連続して処理することにより、測定
に要する時間が著しく短縮されるようになる。
In the above-described measurement method, the case where the imaging is performed with the sample aqueous solution in the transparent cell 4 stationary has been described. However, the present invention is not limited to this, and the imaging is performed with the sample aqueous solution flowing. You may. More specifically, in FIG. 1, the CMC sample aqueous solution is continuously injected into the transparent cell 4 by the pump 3 to continuously develop the sample aqueous film. Then, this is continuously imaged by the imaging device 5. This continuous imaging is performed, for example, in units of 1/30 seconds. Then, from the relationship between the imaging interval and the flow rate of the sample aqueous solution, the number of insolubles per unit volume in the sample aqueous solution can be counted by the image processing means 6. As described above, by performing the processing continuously, the time required for the measurement can be significantly reduced.

【0015】[0015]

【発明の効果】以上のように、この発明のCMC水溶液
中の不溶解物の個数測定方法は、CMC試料水溶液を膜
状に展開し、これを、撮像機により撮像して静止画像を
捉え、この静止画像から画像処理手段により不溶解物を
判別して計数するという一連の手順を経るものである。
このように、CMC試料水溶液を膜状に展開して撮像機
で撮像するため、正確に不溶解物を捉えることが可能と
なり、測定精度および再現性が向上するようになる。ま
た、上記撮像機で捉えた静止画像から、画像処理手段を
用いて自動的に不溶解物を識別するため、濾過等の従来
の測定法と比較して測定に要する時間が著しく短縮され
るようになる。この結果、CMCの品質管理工程が効率
化されるようになる。そして、上記画像処理手段におい
て、不溶解物の個数だけでなく、付随的に、その形状も
判別できるため、不溶解物に関する詳細な情報を得るこ
とができるようになり、この情報をCMCの品質向上の
技術開発に反映させることが可能となる。
As described above, according to the method for counting the number of insolubles in a CMC aqueous solution according to the present invention, a CMC sample aqueous solution is developed in a film form, and this is imaged by an imager to capture a still image. A series of procedures of discriminating and counting insoluble matter from the still image by the image processing means are performed.
As described above, since the CMC sample aqueous solution is developed in the form of a film and imaged by the imaging device, insoluble matter can be accurately captured, and measurement accuracy and reproducibility are improved. In addition, since the insoluble matter is automatically identified from the still image captured by the imager using the image processing means, the time required for the measurement is significantly reduced as compared with the conventional measurement method such as filtration. become. As a result, the quality control process of the CMC becomes more efficient. In the image processing means, not only the number of insolubles but also the shape of the insolubles can be discriminated, so that detailed information on the insolubles can be obtained. This can be reflected in the development of improved technologies.

【0016】つぎに、実施例について説明する。Next, an embodiment will be described.

【0017】[0017]

【実施例1】CMC水溶液の濃度と不溶解物個数との関
係を調べた。すなわち、まず、以下に示す材料を準備し
た。
Example 1 The relationship between the concentration of the CMC aqueous solution and the number of insolubles was examined. That is, first, the following materials were prepared.

【0018】CMC(A):エーテル置換度=0.5
9,ナトリウム塩 電解質:NaCl 染料 :メチルオレンジ
CMC (A): degree of ether substitution = 0.5
9. Sodium salt Electrolyte: NaCl Dye: Methyl orange

【0019】そして、上記NaClを用いて15%食塩
水を調製し、また、上記染料の5%水溶液を調製した。
そして、上記食塩水に対し、CMC(A)を、0.02
5%,0.05%,0.1%の濃度になるように溶解
し、このCMC食塩水溶液100部に対し、上記染料水
溶液を2部の割合で添加して、3種類のCMC濃度のC
MC試料水溶液を調製した。また、対照として、CMC
を含まない他は、上記と同様の条件の試料水溶液(CM
C濃度:0%)を準備した。
Then, a 15% saline solution was prepared using the above NaCl, and a 5% aqueous solution of the above dye was prepared.
Then, CMC (A) was added to the above saline solution by 0.02%.
The dye solution was dissolved at a concentration of 5%, 0.05%, and 0.1%, and the dye aqueous solution was added at a ratio of 2 parts to 100 parts of the CMC saline solution to obtain a CMC having three CMC concentrations.
An MC sample aqueous solution was prepared. As a control, CMC
Except that the sample aqueous solution (CM
C concentration: 0%).

【0020】つぎに、図1に示す撮像装置を用い、前述
した連続注入法により、CMC試料水溶液中の不溶解物
個数を測定した。上記CMC試料水溶液を連続的に膜状
(厚み:200μm)に展開した。そして、これをCC
Dカラーカメラを用い1/30秒の間隔で連続撮像を行
い静止画像を得た。そして、この静止画像から、画像処
理手段により、不溶解物の個数を測定した。この測定
を、各濃度のCMC試料水溶液に対し、20回行った。
そして、この測定結果を統計処理して、図2のグラフに
示した。
Next, the number of insolubles in the CMC sample aqueous solution was measured by the continuous injection method described above using the image pickup apparatus shown in FIG. The CMC sample aqueous solution was continuously developed in a film shape (thickness: 200 μm). And this is CC
Continuous imaging was performed at 1/30 second intervals using a D color camera to obtain a still image. Then, the number of insoluble matters was measured from the still image by the image processing means. This measurement was performed 20 times for each concentration of the CMC sample aqueous solution.
Then, the measurement results were statistically processed and shown in the graph of FIG.

【0021】図示のように、CMC水溶液濃度と不溶解
物個数とは、正の相関を示す。このときの相関係数r
は、r=0.992であり、標準偏差σは、σ=92
(個/8μl)であった。
As shown, the CMC aqueous solution concentration and the number of insolubles show a positive correlation. The correlation coefficient r at this time
Is r = 0.992, and the standard deviation σ is σ = 92
(Pieces / 8 μl).

【0022】[0022]

【実施例2】下記に示すCMC(B)を使用した他は、
実施例1と同様にして、CMC水溶液の濃度と不溶解物
個数との関係を調べた。そして、この結果を、図3のグ
ラフに表した。
Example 2 Except for using CMC (B) shown below,
In the same manner as in Example 1, the relationship between the concentration of the CMC aqueous solution and the number of insolubles was examined. The results are shown in the graph of FIG.

【0023】CMC(B):エーテル置換度=0.7
3,ナトリウム塩
CMC (B): degree of ether substitution = 0.7
3, sodium salt

【0024】図示のように、CMCの種類を変えてもC
MC水溶液濃度と不溶解物個数とは、正の相関を示すこ
とがわかる。このときの相関係数rは、r=0.998
であり、標準偏差σは、σ=36(個/8μl)であっ
た。
As shown, even if the type of CMC is changed,
It can be seen that the MC aqueous solution concentration and the number of insolubles show a positive correlation. The correlation coefficient r at this time is r = 0.998
And the standard deviation σ was σ = 36 (pieces / 8 μl).

【0025】[0025]

【実施例3,4】つぎに、この発明の測定法の再現性を
確認した。すなわち、実施例3は実施例1と同様に、実
施例4は実施例2と同様にして、0.1%CMC試料水
溶液を調製した。そして、この試料水溶液中の不溶解物
個数を、それぞれ20回繰り返し測定した。この結果
を、下記の表1に示す。
Examples 3 and 4 Next, the reproducibility of the measuring method of the present invention was confirmed. That is, a 0.1% CMC sample aqueous solution was prepared in Example 3 in the same manner as in Example 1, and in Example 4 in the same manner as in Example 2. Then, the number of insolubles in the aqueous sample solution was repeatedly measured 20 times. The results are shown in Table 1 below.

【0026】[0026]

【表1】 [Table 1]

【0027】上記表1に示すように、実施例3および実
施例4において、測定回数による不溶解物の個数の測定
結果は、ばらつきが少なく、このことから、この発明の
測定方法は、再現性に優れることがわかる。
As shown in Table 1 above, in Examples 3 and 4, the results of the measurement of the number of insolubles according to the number of times of measurement showed little variation. It turns out that it is excellent.

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

【図1】この発明に使用する測定装置の一構成例を示す
構成図である。
FIG. 1 is a configuration diagram showing one configuration example of a measurement device used in the present invention.

【図2】CMC水溶液濃度と不溶解物個数との関係を示
すグラフ図である。
FIG. 2 is a graph showing the relationship between the concentration of a CMC aqueous solution and the number of insolubles.

【図3】CMC水溶液濃度と不溶解物個数との関係を示
すグラフ図である。
FIG. 3 is a graph showing the relationship between the concentration of a CMC aqueous solution and the number of insolubles.

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 カルボキシメチルセルロースエーテルア
ルカリ塩試料水溶液中の不溶解物の個数を測定するにあ
たり、透明容器内に、上記の試料水溶液を膜状に展開さ
せ、この状態で、撮像機により上記膜状に展開された試
料水溶液を連続的に撮像し、この撮像により得られる単
独あるいは複数の静止画像から不溶解物を計数すること
を特徴とするカルボキシメチルセルロースエーテルアル
カリ塩水溶液中の不溶解物の個数測定方法。
To measure the number of insolubles in an aqueous solution of a carboxymethylcellulose ether alkali salt sample, the sample aqueous solution is spread in a transparent container in a film form. Number of insolubles in carboxymethylcellulose ether alkali salt aqueous solution characterized by continuously imaging the sample aqueous solution developed on the surface and counting insolubles from one or more still images obtained by this imaging Method.
【請求項2】 上記カルボキシメチルセルロースエーテ
ルアルカリ塩試料水溶液が、電解質を含有する請求項1
記載のカルボキシメチルセルロースエーテルアルカリ塩
水溶液中の不溶解物の個数測定方法。
2. The carboxymethylcellulose ether alkali salt sample aqueous solution contains an electrolyte.
A method for measuring the number of insolubles in an aqueous solution of an alkali salt of carboxymethyl cellulose ether according to the above.
【請求項3】 上記カルボキシメチルセルロースエーテ
ルアルカリ塩試料水溶液が、染料を含有する請求項1ま
たは2記載のカルボキシメチルセルロースエーテルアル
カリ塩水溶液中の不溶解物の個数測定方法。
3. The method according to claim 1, wherein the aqueous solution of the alkali salt of carboxymethyl cellulose ether contains a dye.
JP29436194A 1994-11-29 1994-11-29 Method for counting the number of insolubles in aqueous solution of carboxymethyl cellulose ether alkaline salt Expired - Fee Related JP2846823B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29436194A JP2846823B2 (en) 1994-11-29 1994-11-29 Method for counting the number of insolubles in aqueous solution of carboxymethyl cellulose ether alkaline salt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29436194A JP2846823B2 (en) 1994-11-29 1994-11-29 Method for counting the number of insolubles in aqueous solution of carboxymethyl cellulose ether alkaline salt

Publications (2)

Publication Number Publication Date
JPH08151401A JPH08151401A (en) 1996-06-11
JP2846823B2 true JP2846823B2 (en) 1999-01-13

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ID=17806722

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Country Status (1)

Country Link
JP (1) JP2846823B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007063427A (en) * 2005-08-31 2007-03-15 Dai Ichi Kogyo Seiyaku Co Ltd Method for producing carboxymethyl cellulose salt
KR102309284B1 (en) 2018-08-03 2021-10-06 주식회사 엘지에너지솔루션 Method of measument for undissolved solutes in polymer solution
CN113640197A (en) * 2021-10-19 2021-11-12 高密银鹰新材料股份有限公司 Detection method of cellulose ether semi-finished product

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