JPH0320440B2 - - Google Patents
Info
- Publication number
- JPH0320440B2 JPH0320440B2 JP56145692A JP14569281A JPH0320440B2 JP H0320440 B2 JPH0320440 B2 JP H0320440B2 JP 56145692 A JP56145692 A JP 56145692A JP 14569281 A JP14569281 A JP 14569281A JP H0320440 B2 JPH0320440 B2 JP H0320440B2
- Authority
- JP
- Japan
- Prior art keywords
- fatty acid
- sulfo fatty
- acid ester
- slurry
- salt
- 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 - Lifetime
Links
- 239000002002 slurry Substances 0.000 claims description 35
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 34
- 239000000194 fatty acid Substances 0.000 claims description 34
- 229930195729 fatty acid Natural products 0.000 claims description 34
- 239000003599 detergent Substances 0.000 claims description 29
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000001694 spray drying Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000002274 desiccant Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 description 11
- 230000007062 hydrolysis Effects 0.000 description 10
- 238000006460 hydrolysis reaction Methods 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 235000015278 beef Nutrition 0.000 description 6
- 239000000344 soap Substances 0.000 description 6
- 239000004115 Sodium Silicate Substances 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 5
- 229910052911 sodium silicate Inorganic materials 0.000 description 5
- 239000003760 tallow Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 235000019482 Palm oil Nutrition 0.000 description 4
- 239000002540 palm oil Substances 0.000 description 4
- -1 phenol compound Chemical class 0.000 description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- 239000001509 sodium citrate Substances 0.000 description 4
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 3
- 239000010446 mirabilite Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
Description
本発明はα−スルホ脂肪酸エステル塩を含有す
る粒状洗剤の製造法に関するものであつて、その
目的とするところは、洗剤製造過程でのα−スル
ホ脂肪酸エステル塩の加水分解を抑制し、併せて
粉体物性が良好な粒状洗剤を得ることにある。
比較的硬度の高い洗濯用水中でも優れた洗浄力
を発揮する界面活性剤は、従来から幾つか知られ
ているが、そうした界面活性剤のなかにあつて特
にα−スルホ脂肪酸エステル塩は、用水中のカル
シウムなどに感応して不溶性錯化合物を形成する
ことが少ないため、洗浄力と汚れ分散力が際立つ
て優れている点で注目されている。加えて、河川
湖沼の富栄養化の一因が、粒状洗剤に配合されて
いるリン酸塩系ビルダーにあることが指摘されて
以来、粒状洗剤中のリン酸塩系ビルダーの全部又
は大部分を、炭酸塩、ケイ酸塩、アルミノケイ酸
塩（ゼオライト）に代替させている洗剤製造業界
の現状は、α−スルホ脂肪酸エステル塩の重要性
を一層高めている。
ところで、α−スルホ脂肪酸エステル塩は加水
分解を受けると、界面活性能に乏しいα−スルホ
脂肪酸塩に変化する性質があり、また粒状洗剤に
配合した場合には、その粒状洗剤がケーキングを
起す欠点がある。このため、例えば特開昭52−
28507号公報では、α−スルホ脂肪酸エステル塩
の加水分解を防止し、併せてケーキングを防止す
る方策として、特定なアルカリ性ビルダーの使用
が提案されており、また特公昭53−28163号では、
α−スルホ脂肪酸エステル塩の加水分解防止策と
して、ヒンダートフエノール系化合物とヒドロキ
シポリカルボン酸塩の併用が提案されている。
本発明は上に例示した従来技術の如く、添加成
分を使用してα−スルホ脂肪酸エステル塩の加水
分解や粒状洗剤のケーキングを防止する方法とは
内容を異にして、α−スルホ脂肪酸エステル塩含
有粒状洗剤の噴霧乾燥方法を工夫することによ
り、洗剤製造過程でのα−スルホ脂肪酸エステル
塩の加水分解を抑制し、併せて経日による粒状洗
剤のケーキングを防止するものである。
すなわち、本発明はα−スルホ脂肪酸エステル
塩を含有する洗剤を噴霧乾燥によつて製造するに
当り、α−スルホ脂肪酸エステル塩を含有し、強
アルカリ成分を実質的に含まないスラリー（Ａ）
と、強アルカリ成分を含有するスラリー（Ｂ）を
別々に調製し、これら両スラリーを同一乾燥空間
内に同時に噴霧して乾燥することを特徴とするα
−スルホ脂肪酸エステル塩含有洗剤の製造法を提
供する。
本発明の方法によれば、α−スルホ脂肪酸エス
テル塩は多量の水の存在下に強アルカリ成分と接
触することがないので、加水分解を受ける虞れが
ない。また、本発明による粒状洗剤のケーキング
防止機構について言えば、その詳細は現在のとこ
ろ必ずしも明確ではないが、本発明の方法によれ
ば、スラリー（Ａ）の噴霧粒とスラリー（Ｂ）の
噴霧粒とは、前者の表面に後者が付着した状態で
乾燥され、α−スルホ脂肪酸エステル塩を含有し
ているが故に粘着性があるスラリー（Ａ）の乾燥
粒子同志が直接接触することがないためと推定さ
れる。
本発明に於て、スラリー（Ａ）に含有させるα
−スルホ脂肪酸エステル塩は、下記の一般式で表
示される。
ここでＲは炭素数４〜20のアルキル基を、R1
は炭素数１〜６のアルキル基を、Ｍはカチオンを
それぞれ示し、Ｒ及びR1のアルキル基は直鎖状
又は分枝鎖状のいずれでも差支えない。この種の
α−スルホ脂肪酸エステル塩は、例えば硬化牛脂
脂肪酸、硬化パーム油脂肪酸などをエステル化し
てからスルホン化し、次いでこれを苛性ソーダ又
は苛性カリにて中和する方法で容易に取得するこ
とができる。
スラリー（Ａ）は強アルカリ成分を実質的に含
有してはならない。ここで「強アルカリ成分」と
はその１％水溶液のPHが10.6以上である成分を言
い、具体的には炭酸ナトリウム、ケイ酸ナトリウ
ムなどが例示される。また「実質的に含有しな
い」とはスラリー（Ａ）に含まれる強アルカリ成
分の量が乾燥粒状洗剤の重量基準で３％以下であ
ることを言う。従つて、本発明のスラリー（Ａ）
には、α−スルホ脂肪酸エステル塩以外のアニオ
ン界面活性剤（石鹸を含む）、両性界面活性剤を
配合することができる外、クエン酸ナトリウム、
硫酸ナトリウムなどの非強アルカリ成分も必要に
応じて配合することができる。スラリー（Ａ）の
固型分濃度は、スラリーの調製、パイプ移送及び
噴霧操作に支障を来たさない限り、任意に調節可
能であるが、一般的には50〜70wt％程度の固型
分濃度である。
本発明のスラリー（Ｂ）は１％水溶液のPHが
10.6以上である強アルカリ成分を含有し、典型的
には炭酸ナトリウム及び／又はケイ酸ナトリウム
を含有する。既述した通り、若干量の強アルカリ
成分は、これをスラリー（Ａ）に配合することも
できるが、好ましくは粒状洗剤に配合される強ア
ルカリ成分の全量をスラリー（Ｂ）に配合してお
くべきである。スラリー（Ｂ）は強アルカリ成分
を含有する故、α−スルホ脂肪酸エステル塩をこ
れに添加することは推奨できないけれども、α−
スルホ脂肪酸エステル塩以外のアニオン界面活性
剤（石鹸を含む）や両性界面活性剤などは必要に
応じてスラリー（Ｂ）に配合することができる。
スラリー（Ａ）と同様、スラリー（Ｂ）の固型分
濃度は、スラリーの調製、パイプ移送及び噴霧操
作に支障を来たさない限り、任意に調節可能であ
るが、一般的には50〜75wt％程度の固型分濃度
である。
尚、粒状洗剤には通常、キレート剤、螢光増白
剤、色素その他が配合されるが、これらを使用す
る場合は、スラリー（Ａ）及び／又は（Ｂ）に添
加しておくことができる。
本発明によれば、上記のスラリー（Ａ）及び
（Ｂ）は同一乾燥空間内に同時に噴霧され、一般
的には熱風と向流接触して乾燥される。この場
合、スラリー（Ａ）及び（Ｂ）を個別に噴霧乾燥
し、それぞれの乾燥粒を混合する方法は、α−ス
ルホ脂肪酸エステル塩の加水分解については、一
応これを抑制できるものの、スラリー（Ａ）の乾
燥粒をスラリー（Ｂ）の乾燥粒で充分被覆するこ
とができないため、この方法ではケーキングのな
い粒状洗剤を得ることができない。
進んで実施例により本発明をさらに具体的に説
明するが、それに先立ち実施例で粒状洗剤をの性
状評価に使用したジ塩含有率及びダマ量の測定方
法を以下に示す。念のため付言すると、ジ塩含有
率はα−スルホ脂肪酸エステル塩が加水分解を受
ける度合の尺度であつて、加水分解を受ける度合
が高い程、ジ塩含有率は増大する。またダマ量は
粒状洗剤のケーキング性を判定する尺度であつ
て、この値が大きい程粒状洗剤はケーキングしや
すい。
(1) ジ塩含有率
一定量の試料を90％エタノールで抽出すると、
抽出液中にはα−スルホ脂肪酸エステル塩が溶解
し、α−スルホ脂肪酸ジ塩は沈澱するので、それ
ぞれの量をメチレンブル−逆滴定法で測定し、次
式によつてジ塩含有率を算出する。
ジ塩含有率（％）＝（試料中のα−スルホ脂肪酸ジ塩）
／（試料中のα−スルホ脂肪酸エステル塩）＋（試料中
のα−スルホ脂肪酸ジ塩）×100
(2) ダマ量
洗剤用カルトン（30cm×22.5cm×6.5cm）に粒
子を充填し、
温度35℃、湿度85％／16時間温度25℃、湿度60％／８
時間
のサイクルを繰返すヒユーミデイテイボツクスに
前記の粒子充填カルトンを40日間静置後、カルト
ンを切り開いて４メツシユ篩上に粒子を静かに移
し、次いで篩をゆるやかに振動させ、しかる後篩
上に残る粒子の重量を計量してカルトンに充填し
た粒子の総重量に対する割合を算出する。
実 験
下記の如き４種類の洗剤スラリーをまず調製し
た。
スラリー（Ａ）（固型分62wt％、水分38wt％）
固型分組成
硬化パーム油からのα−スルホ脂肪酸メチルエス
テルナトリウム 30wt％
牛脂石鹸 20wt％
クエン酸ナトリウム 10wt％
芒硝 バランス
スラリー（Ｂ）（固型分68wt％、水分32wt％）
固型分組成
牛脂石鹸 50wt％
珪酸ナトリウム（SiO2／Na2O＝2.2） 6wt％
炭酸ナトリウム バランス
スラリー（Ｃ）（固型分60wt％、水分40wt％）
固型分組成
硬化パーム油からのα−スルホ脂肪酸メチルエス
テルナトリウム 10wt％
牛脂石鹸 40wt％
クエン酸ナトリウム 3.3wt％
炭酸ナトリウム 26wt％
珪酸ナトリウム（SiO2／Na2O＝2.2） 4wt％
芒硝 バランス
スラリー（Ｄ）（固形分62wt％、水分38％）
固形分組成
硬化パーム油／硬化牛油＝１：１からのα−スル
ホ脂肪酸メチルエステルナトリウム 30wt％
牛脂石鹸 20wt％
クエン酸ナトリウム 10wt％
珪酸ナトリウム（SiO2／Na2O＝2.2） 3wt％
芒硝 バランス
向流式噴霧乾燥装置（熱風入口温度300〜350
℃、熱風出口温度100〜150℃）を用いて、上記の
スラリー（Ａ），（Ｂ），（Ｃ），（Ｄ）を次表に示す
噴霧方法で噴霧し、得られた各粒状洗剤について
ジ塩含有率とダマ量を測定した。
尚、各粒状洗剤の水分量はいずれも３〜5wt％
であつた。
The present invention relates to a method for producing a granular detergent containing an α-sulfo fatty acid ester salt, and its purpose is to suppress the hydrolysis of the α-sulfo fatty acid ester salt during the detergent manufacturing process, and to The object of the present invention is to obtain a granular detergent with good powder physical properties. Several surfactants have been known that exhibit excellent cleaning power even in relatively hard washing water, but among these surfactants, especially α-sulfo fatty acid ester salts, Because it is less likely to form insoluble complexes in response to calcium, etc., it is attracting attention for its outstanding detergency and stain dispersion ability. In addition, since it has been pointed out that one of the causes of eutrophication of rivers and lakes is the phosphate builders contained in granular detergents, it has become necessary to remove all or most of the phosphate builders in granular detergents. The current situation in the detergent manufacturing industry, which is replacing detergents with carbonates, silicates, and aluminosilicates (zeolites), has further increased the importance of α-sulfo fatty acid ester salts. By the way, when α-sulfo fatty acid ester salts undergo hydrolysis, they have the property of changing into α-sulfo fatty acid salts that have poor surface activity, and when added to granular detergents, the granular detergents have the disadvantage of causing caking. There is. For this reason, for example,
Publication No. 28507 proposes the use of a specific alkaline builder as a measure to prevent hydrolysis of α-sulfo fatty acid ester salts and also prevent caking, and in Japanese Patent Publication No. 53-28163,
As a measure to prevent hydrolysis of α-sulfo fatty acid ester salts, the combined use of a hindered phenol compound and a hydroxypolycarboxylic acid salt has been proposed. The present invention differs from the above-mentioned prior art methods in which additive components are used to prevent the hydrolysis of α-sulfo fatty acid ester salts and the caking of granular detergents. By devising a spray-drying method for the granular detergent contained therein, it is possible to suppress hydrolysis of the α-sulfo fatty acid ester salt during the detergent manufacturing process, and also to prevent caking of the granular detergent over time. That is, in producing a detergent containing an α-sulfo fatty acid ester salt by spray drying, the present invention uses a slurry (A) containing an α-sulfo fatty acid ester salt and substantially free of strong alkaline components.
and a slurry (B) containing a strong alkaline component are separately prepared, and both slurries are simultaneously sprayed and dried in the same drying space.
- Provides a method for producing a detergent containing a sulfo fatty acid ester salt. According to the method of the present invention, the α-sulfo fatty acid ester salt does not come into contact with a strong alkaline component in the presence of a large amount of water, so there is no risk of hydrolysis. Regarding the caking prevention mechanism of the granular detergent according to the present invention, the details are not necessarily clear at present, but according to the method of the present invention, the atomized particles of slurry (A) and the atomized particles of slurry (B) This is because the dry particles of slurry (A), which is sticky because it contains α-sulfo fatty acid ester salt, do not come into direct contact with each other because the latter is dried with the latter attached to the surface of the former. Presumed. In the present invention, α contained in the slurry (A)
- The sulfo fatty acid ester salt is represented by the following general formula. Here, R is an alkyl group having 4 to 20 carbon atoms, R 1
represents an alkyl group having 1 to 6 carbon atoms, M represents a cation, and the alkyl groups of R and R 1 may be either linear or branched. This type of α-sulfo fatty acid ester salt can be easily obtained by, for example, esterifying hydrogenated beef tallow fatty acid, hydrogenated palm oil fatty acid, etc., sulfonating it, and then neutralizing it with caustic soda or caustic potash. Slurry (A) must be substantially free of strong alkaline components. Here, the term "strong alkaline component" refers to a component whose 1% aqueous solution has a pH of 10.6 or higher, and specific examples include sodium carbonate and sodium silicate. Moreover, "substantially not containing" means that the amount of strong alkaline components contained in the slurry (A) is 3% or less based on the weight of the dry granular detergent. Therefore, the slurry (A) of the present invention
can contain anionic surfactants (including soaps) and amphoteric surfactants other than α-sulfo fatty acid ester salts, as well as sodium citrate,
A non-strongly alkaline component such as sodium sulfate may also be added if necessary. The solid content concentration of slurry (A) can be adjusted as desired as long as it does not interfere with slurry preparation, pipe transfer, and spraying operations, but generally the solid content is about 50 to 70 wt%. It is concentration. The slurry (B) of the present invention has a pH of 1% aqueous solution.
Contains a strong alkaline component of 10.6 or higher, typically containing sodium carbonate and/or sodium silicate. As mentioned above, a small amount of the strong alkaline component can be added to the slurry (A), but preferably the entire amount of the strong alkaline component added to the granular detergent is mixed into the slurry (B). Should. Since slurry (B) contains a strong alkaline component, it is not recommended to add α-sulfo fatty acid ester salt to it;
Anionic surfactants (including soap), amphoteric surfactants, and the like other than the sulfo fatty acid ester salts can be blended into the slurry (B) as necessary.
Similar to slurry (A), the solid content concentration of slurry (B) can be adjusted arbitrarily as long as it does not interfere with slurry preparation, pipe transfer, and spraying operations, but it is generally 50 to 50%. The solid content concentration is about 75wt%. Incidentally, chelating agents, fluorescent whitening agents, pigments, etc. are usually blended into granular detergents, but if these are used, they can be added to the slurry (A) and/or (B). . According to the invention, the slurries (A) and (B) described above are sprayed simultaneously into the same drying space and are generally dried in countercurrent contact with hot air. In this case, although the method of separately spray-drying slurries (A) and (B) and mixing the respective dry particles can suppress the hydrolysis of the α-sulfo fatty acid ester salt, ) cannot be sufficiently coated with the dry particles of slurry (B), and therefore a granular detergent free of caking cannot be obtained by this method. The present invention will now be explained in more detail with reference to Examples, but prior to that, methods for measuring the di-salt content and amount of lumps used in the Examples to evaluate the properties of granular detergents are shown below. As a reminder, the di-salt content is a measure of the degree to which the α-sulfo fatty acid ester salt undergoes hydrolysis, and the higher the degree of hydrolysis, the higher the di-salt content. Further, the amount of lumps is a measure for determining the caking property of a granular detergent, and the larger this value is, the more likely the granular detergent is to cause caking. (1) Di-salt content When a certain amount of sample is extracted with 90% ethanol,
The α-sulfo fatty acid ester salt is dissolved in the extract, and the α-sulfo fatty acid di-salt is precipitated, so the amounts of each are measured using the methylene blue back titration method, and the di-salt content is calculated using the following formula. do. Di-salt content (%) = (α-sulfo fatty acid di-salt in the sample)
/ (α-sulfo fatty acid ester salt in the sample) + (α-sulfo fatty acid di-salt in the sample) × 100 (2) Amount of lumps A detergent carton (30 cm x 22.5 cm x 6.5 cm) is filled with particles, and the temperature 35℃, humidity 85%/16 hours Temperature 25℃, humidity 60%/8
After leaving the particle-filled carton in a time-cycled storage box for 40 days, the carton was cut open and the particles were gently transferred onto a 4-mesh sieve, then the sieve was gently vibrated, and then the sieve was placed on the sieve. The weight of the particles remaining in the carton is measured and the ratio of the particles packed into the carton to the total weight is calculated. Experiment First, four types of detergent slurries as shown below were prepared. Slurry (A) (solid content 62wt%, moisture 38wt%) Solid composition Sodium α-sulfo fatty acid methyl ester from hardened palm oil 30wt% Beef tallow soap 20wt% Sodium citrate 10wt% Glauber's salt Balanced slurry (B) (solid Type content: 68wt%, water content: 32wt%) Solid content: Beef tallow soap 50wt% Sodium silicate (SiO 2 /Na 2 O = 2.2) 6wt% Sodium carbonate Balance slurry (C) (solid content: 60wt%, water content: 40wt%) Solid Type composition Sodium α-sulfo fatty acid methyl ester from hardened palm oil 10wt% Beef tallow soap 40wt% Sodium citrate 3.3wt% Sodium carbonate 26wt% Sodium silicate (SiO 2 /Na 2 O = 2.2) 4wt% Glauber's salt Balanced slurry (D ) (Solid content 62wt%, moisture 38%) Solid content composition Hydrogenated palm oil/hardened beef oil = 1:1 Sodium α-sulfo fatty acid methyl ester 30wt% Beef tallow soap 20wt% Sodium citrate 10wt% Sodium silicate (SiO 2 /Na2O=2.2 ) 3wt% Glauber's Salt Balance Countercurrent spray dryer (hot air inlet temperature 300-350
For each granular detergent obtained by spraying the above slurries (A), (B), (C), and (D) using the spraying method shown in the following table using The di-salt content and amount of lumps were measured. In addition, the water content of each granular detergent is 3 to 5 wt%.
It was hot.
【表】【table】
【表】
噴霧位置は噴霧乾燥装置の熱風導入口下端からの
距離で表示
比較例１は（Ａ）及び（Ｂ）の２種のスラリー
を個別に噴霧乾燥後、粉体混合したもので、この
方法ではジ塩含有率を低く抑えられるが、保存に
よりダマが発生し、商品とはなり得ない。また比
較例２は強アルカリ成分とα−スルホ脂肪酸エス
テル塩を同じスラリーに共存させたもので、この
場合にはジ塩の量が大幅に増加し、洗浄性能の低
下を来す。
これとは対照的に、実施例１〜５はジ塩の増加
もなく、ダマの発生も低く抑えられている。[Table] The spray position is indicated by the distance from the bottom of the hot air inlet of the spray drying device. In Comparative Example 1, two types of slurry (A) and (B) were individually spray dried and then mixed into powder. Although this method can keep the di-salt content low, clumps occur during storage and the product cannot be used as a commercial product. Moreover, in Comparative Example 2, a strong alkaline component and an α-sulfo fatty acid ester salt were made to coexist in the same slurry, and in this case, the amount of di-salt increased significantly, resulting in a decrease in cleaning performance. In contrast, in Examples 1 to 5, there was no increase in di-salt and the occurrence of lumps was suppressed to a low level.
Claims (1)
を噴霧乾燥によつて製造するに当り、α−スルホ
脂肪酸エステル塩を含有し、１％水溶液でPH10.6
以上の強アルカリ成分の含有量が３％以下（乾燥
剤重量基準）であるスラリー（Ａ）と、α−スル
ホ脂肪酸エステル塩を含まず、１％水溶液でPH
10.6以上の強アルカリ成分を含有するスラリー
（Ｂ）を別々に調製し、これら両スラリーを同一
乾燥空間内に同時に噴霧して乾燥することを特徴
とするα−スルホ脂肪酸エステル塩含有洗剤の製
造法。1. When producing a detergent containing an α-sulfo fatty acid ester salt by spray drying, a 1% aqueous solution containing the α-sulfo fatty acid ester salt has a pH of 10.6.
A slurry (A) containing 3% or less of the above strong alkaline components (based on desiccant weight) and a 1% aqueous solution containing no α-sulfo fatty acid ester salt have a PH
A method for producing an α-sulfo fatty acid ester salt-containing detergent, which comprises separately preparing a slurry (B) containing a strong alkaline component of 10.6 or more, and simultaneously spraying and drying both slurries in the same drying space. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14569281A JPS5847098A (en) | 1981-09-16 | 1981-09-16 | Manufacture of detergent containing alpha-sulfo-fatty acid ester salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14569281A JPS5847098A (en) | 1981-09-16 | 1981-09-16 | Manufacture of detergent containing alpha-sulfo-fatty acid ester salt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5847098A JPS5847098A (en) | 1983-03-18 |
| JPH0320440B2 true JPH0320440B2 (en) | 1991-03-19 |
Family
ID=15390887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14569281A Granted JPS5847098A (en) | 1981-09-16 | 1981-09-16 | Manufacture of detergent containing alpha-sulfo-fatty acid ester salt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5847098A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8622565D0 (en) * | 1986-09-19 | 1986-10-22 | Unilever Plc | Detergent composition |
| JPH066720B2 (en) * | 1987-04-10 | 1994-01-26 | 花王株式会社 | Method for producing powder detergent containing α-sulfo fatty acid ester salt |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130806A (en) * | 1974-07-04 | 1976-03-16 | Henkel & Cie Gmbh | |
| JPS5280309A (en) * | 1975-12-27 | 1977-07-06 | Lion Corp | Production of detergent slurry for spray drying |
| JPS5379905A (en) * | 1976-12-23 | 1978-07-14 | Lion Corp | Production of granular detergent |
| JPS54159417A (en) * | 1978-06-07 | 1979-12-17 | Lion Corp | Preparation of particulate detergent |
-
1981
- 1981-09-16 JP JP14569281A patent/JPS5847098A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130806A (en) * | 1974-07-04 | 1976-03-16 | Henkel & Cie Gmbh | |
| JPS5280309A (en) * | 1975-12-27 | 1977-07-06 | Lion Corp | Production of detergent slurry for spray drying |
| JPS5379905A (en) * | 1976-12-23 | 1978-07-14 | Lion Corp | Production of granular detergent |
| JPS54159417A (en) * | 1978-06-07 | 1979-12-17 | Lion Corp | Preparation of particulate detergent |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5847098A (en) | 1983-03-18 |
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