JP4005353B2 - Liquid detergent composition - Google Patents

Liquid detergent composition Download PDF

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JP4005353B2
JP4005353B2 JP2001387966A JP2001387966A JP4005353B2 JP 4005353 B2 JP4005353 B2 JP 4005353B2 JP 2001387966 A JP2001387966 A JP 2001387966A JP 2001387966 A JP2001387966 A JP 2001387966A JP 4005353 B2 JP4005353 B2 JP 4005353B2
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weight
coom
glycol
potassium
soap
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JP2003183700A (en
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進司 橋本
幸雄 長峯
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株式会社コープクリーン
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Description

【0001】
【発明の属する技術分野】
本発明は、液体洗浄剤組成物に関する。更に詳しくは、洗浄力、安定性に優れた液体洗浄剤組成物に関する。
【0002】
【従来の技術】
水質汚染防止のために、合成洗剤に代えて石鹸の使用推進が叫ばれている。水に溶けにくく、飛散し易い粉石鹸よりは、液体石鹸が注目されている。
粉石鹸には界面活性剤の洗浄作用を補う助剤として炭酸ソーダ又は炭酸カリウム等のアルカリ緩衝剤が使用されている。洗濯用粉石鹸の場合、通常、炭酸ソーダを20〜30%程度添加し洗浄力を向上させている。
しかし、液体石鹸では、アルカリ緩衝剤を添加すると、固まるかゼリー状となる。そのため炭酸ソーダ、炭酸カリウム等を1%前後の少量含ませた例があるが、洗濯水のpHが低すぎて洗浄力が最大限に発揮することが出来ないという問題点がある。
【0003】
【発明が解決しようとする課題】
そこで、本発明の目的は、高い洗浄力を有し、且つ低温においても粘度が低いため使い勝手が良好で、経時的にも安定性に優れた液体洗浄剤組成物を提供することにある。
【0004】
【課題を解決するための手段】
本発明は、(A)石鹸中に占めるラウリン酸カリウムの比率が20重量%以上80重量%以下であるカリウム石鹸10〜45重量%、(B)炭酸ナトリウム及び炭酸カリウムからなり、炭酸ナトリウム/炭酸カリウムの重量比が9/1〜0.1/9.9である炭酸塩5〜15重量%、及び(C)ジプロピレングリコール、メチルグリコール、メチルジグリコール、メチルトリグリコール、エチルグリコール及びエチルジグリコールからなる群より選ばれる少なくとも一種のグリコール系溶剤1〜10重量%、を含有することを特徴とする液体洗浄剤組成物である。以下、本発明を詳細に説明する。
【0005】
(A)石鹸
本発明の洗浄剤組成物において(A)成分の石鹸としては種々の脂肪酸石鹸を使用することができるが、脂肪酸石鹸を構成する脂肪酸の炭素数が8〜22のものであることが好ましい。また、脂肪酸は、直鎖、分岐、あるいは飽和、不飽和を問わず使用することができ、単独で使用してもよく、複数種を併せて使用してもよい。例えば、牛脂、羊油等の動物油脂、ヤシ油、パーム核油、大豆油、オリーブ抽、綿実油等の植物油脂などを常法により高圧分解して得た脂肪酸混合物や、これらを分離精製して得られるラウリン酸、ミリスチン酸、パルミチン酸、ステアリン酸、ベヘニン酸、パルミトオレイン酸、オレイン酸、イソミリスチン酸イソパルミチン及びイソステアリン酸等の単独又は複数種を使用することができる。
【0006】
また、脂肪酸の対イオンはカリウムである。脂肪酸石鹸の配合量は、当該脂肪酸石鹸の種類や本発明の洗浄剤組成物の他の成分の種類、配合量に応じて適宜定めることができる。通常、10〜45重量%、特に20〜40重量%とすることが好ましい。(A)成分の石鹸はカリウム石鹸で、(A)石鹸中に占めるラウリン酸カリウムの比率が20重量%以上80重量%以下であることが好ましい。
【0007】
(B)炭酸塩
(B)炭酸塩は、炭酸ナトリウム及び炭酸カリウムからなり、炭酸ナトリウム/炭酸カリウムの重量比が9/1〜0.1/9.9、特に8/2〜2/8であることが好ましい。
本発明の洗浄剤組成物において(B)炭酸塩の含有量は、5〜15重量%、好ましくは8〜12重量%である。
【0008】
(C)グリコール系溶剤
本発明の洗浄剤組成物は、ジプロピレングリコール、メチルグリコール、メチルジグリコール、メチルトリグリコール、エチルグリコール及びエチルジグリコールからなる群より選ばれる少なくとも一種の(C)グリコール系溶剤を含有する。
(C)グリコール系溶剤の含有量は、1〜10重量%、好ましくは3〜8重量%である。かかる(C)グリコール系溶剤により、低温においても粘度が低く、安定性に優れた液体洗浄剤組成物が提供される。
【0009】
(D)ビルダー
本発明の液体洗浄剤は、更に下記一般式(1)で表される化合物若しくはその塩を1〜10重量%含有することが好ましい。
【化3】

Figure 0004005353
[式中、R1は、H又はCH2COOMであり;R2は、H又はCH2COOMであり;R3は、COOM、CH2COOM又は次式(2)、(3)で表される置換基であり;
【化4】
Figure 0004005353
4は、H、CH3、CH2COOM、CH2CH2COOM、CH(OH)COOMであり、但し、R4が水素原子の時は、R1、R2は水素原子ではない。Mは、水素原子、アルカリ金属原子又はアンモニウムである。アルカリ金属原子として、ナトリウム、カリウム、リチウムが挙げられる。]
【0010】
一般式(1)で表される化合物若しくはその塩の具体例として、次の一般式(5)で表わされるアスパラギン酸二酢酸(塩)(ASDA)、一般式(6)で表わされるグルタミン酸二酢酸(塩)(GLDA)、一般式(7)で表わされるヒドロキシイミノ二コハク酸(塩)(HIDS)、一般式(8)で表わされるイミノ二コハク酸(塩)(IDS)、一般式(9)で表わされるカルボキシエチルイミノコハク酸(塩)(CEIS)、一般式(10)で表わされるメチルグリシン二酢酸(塩)(MGDA)、一般式(11)で表わされるエチレンジアミン二コハク酸(塩)(EDDS)、一般式(12)で表わされるエチレンジアミン四酢酸酸(塩)(EDTA)がある。
【0011】
【化5】
Figure 0004005353
【0012】
【化6】
Figure 0004005353
【0013】
【化7】
Figure 0004005353
【0014】
(E)添加剤
その他の成分として、蛍光染料、ポリエチレングリコール(PEG)、ポリビニルピロリドン(PVP)及びポリビニルアルコール(PVA)等の分散剤もしくは色移り防止剤、シリコーン/シリカ系等の消泡剤、酸化防止剤、青味付剤並びに香料等の従来から公知の成分を公知の配合量で配合することができる。
蛍光染料としては、4,4’−ビス−(2−スルホスチリル)−ビフェニル塩、4,4’−ビス−(4−クロロ−3−スルホスチリル)−ビフェニル塩、2−(スチリルフェニル)ナフトチアゾール誘導体、4,4’−ビス(トリアゾール−2−イル)スチルベン誘導体、ビス(トリアジニルアミノ)スチルベンジスルホン酸誘導体の1種又は2種以上を、組成物中に0〜2重量%含有することができ、例えばホワイテックスSA(住友化学社製)やチノパールCBS(チバガイギ−社製)等の商品名で市販されているものが使用できる。
【0015】
製造方法
また、液体洗浄剤組成物は、牛脂、羊油等の動物油脂、ヤシ油、パーム核油、大豆油、オリープ油、綿実油等の植物由脂などを分解して得られる脂肪酸の単独又は複数種を水酸化ナトリウム、水酸化カリウム、アルカノールアミン等の水溶液で中和し、(B)炭酸塩、(C)グリコール系溶剤、必要に応じてさらにその他の香料、染料等の成分を添加し、混合すればよい。
【0016】
【実施例】
(実施例1〜17、比較例1〜4)
表1〜3に示す(A)脂肪酸石鹸、(B)炭酸塩、(C)グリコール系溶剤、さらに必要に応じて(D)ビルダー等を添加し液体洗浄剤組成物を製造した。
得られた洗浄剤の洗浄力、粘度及び安定性を以下の方法で評価した。結果を表1〜3に示す。
【0017】
(1)洗浄力試験
温度20℃のイオン交換水に塩化カルシウムで硬度50ppm、100ppm(炭酸カルシウム換算)に調製した人工硬水を用い、この人工硬水1リットルに対して、1.5gを添加し、試験液用の洗浄液を調製した。これらの各洗浄液について、それぞれ汚染布(洗濯科学協会汚染布)を10枚加え、浴比を1:30に調整してターゴットメーターにて120rpmで10分間洗浄した後、3分間の濯ぎを2回行った。洗浄液の汚染布を乾燥後、その反射率を測定した。予め、汚染布にする前の原布及び洗浄前の汚染布の反射率を測定しておき、原布および洗浄前後の汚染布の反射率から、次式(Kubelka−Munkの式)によって洗浄率を算出した。
【0018】
【数1】
Figure 0004005353
【数2】
Figure 0004005353
【0019】
(2)粘度測定
(株)トキメック社製のBM形粘度計を用い、温度5℃、25℃にて測定した。
【0020】
(3)経時安定性試験
ポリプロピレン製の容器に表に示す配合品を入れ、−5℃、0℃、40℃の恒温器で、1ケ月保存後の状態を下記の評価基準に基づいてランク付けした。
○:外観は透明で全く異常なく、流動性も非常に良好。
△:外観は透明であるが、粘性が非常に高い(あめ状)。
×:固化、白濁又は沈殿物。
【0021】
【表1】
Figure 0004005353
【0022】
【表2】
Figure 0004005353
【0023】
【表3】
Figure 0004005353
【0024】
脂肪酸石鹸 :オレイン酸カリウム/ラウリン酸カリウム=60/40
DPG :ジプロピレングリコールCH3CH(OH)CH2OCH2CH(OH)CH3
MG :メチルグリコールCH3OCH2CH2OH、
MDG :メチルジグリコールCH3O(CH2CH2O)2H、
MTG :メチルトリグリコールCH3O(CH2CH2O)3H、
EG :エチルグリコールCH3CH2OCH2CH2OH、
EDG :エチルジグリコールCH3CH2O(CH2CH2O)2H、
PG :プロピレングリコールCH3CH(OH)CH2OH、
MPG :メチルプロピレングリコールCH3OCH2CH(OH) CH3
珪酸カリウム :A珪酸カリ(日本化学工業製)
ASDA :アスパラギン酸二酢酸ナトリウム
GLDA :グルタミン酸二酢酸ナトリウム
MGDA :メチルグリシン二酢酸ナトリウム
HIDS :ヒドロキシイミノ二コハク酸ナトリウム
IDS :イミノ二コハク酸ナトリウム
CEIS :カルボキシエチルイミノコハク酸ナトリウム
EDDS :エチレンジアミン二コハク酸ナトリウム
EDTA :エチレンジアミン四酢酸ナトリウム
クエン酸 :クエン酸一水和物
エタノール :ゲラニオール変性
【0025】
【発明の効果】
本発明によれば、高い洗浄力を有し、且つ低温においても粘度が低く、経時的にも非常に安定性に優れた液体洗浄剤組成物が提供される。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid detergent composition. More specifically, the present invention relates to a liquid detergent composition having excellent detergency and stability.
[0002]
[Prior art]
In order to prevent water pollution, the use of soap instead of synthetic detergents has been called out. Liquid soap has attracted more attention than powdered soap, which is difficult to dissolve in water and easily scatters.
Alkaline buffers such as sodium carbonate or potassium carbonate are used in powder soaps as an auxiliary agent to supplement the cleaning action of the surfactant. In the case of laundry soap, 20 to 30% sodium carbonate is usually added to improve the cleaning power.
However, liquid soap hardens or becomes jelly when an alkaline buffer is added. For this reason, there is an example in which a small amount of sodium carbonate, potassium carbonate or the like is contained at about 1%, but there is a problem that the washing power cannot be maximized because the pH of the washing water is too low.
[0003]
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to provide a liquid detergent composition that has a high detergency, is easy to use because of its low viscosity even at low temperatures, and has excellent stability over time.
[0004]
[Means for Solving the Problems]
The present invention comprises (A) 10 to 45% by weight of potassium soap in which the proportion of potassium laurate in the soap is 20% by weight to 80% by weight, (B) sodium carbonate and potassium carbonate, 5-15% by weight of carbonate with a weight ratio of potassium of 9/1 to 0.1 / 9.9 , and (C) dipropylene glycol, methyl glycol, methyl diglycol, methyl triglycol, ethyl glycol and ethyl di A liquid detergent composition comprising 1 to 10% by weight of at least one glycol solvent selected from the group consisting of glycols. Hereinafter, the present invention will be described in detail.
[0005]
(A) Soap In the cleaning composition of the present invention, various fatty acid soaps can be used as the soap of component (A), but the fatty acid soap constituting the fatty acid soap has 8 to 22 carbon atoms. Is preferred. The fatty acid can be used regardless of whether it is linear, branched, saturated or unsaturated, and may be used alone or in combination of two or more. For example, animal fats and oils such as beef tallow and sheep oil, palm oil, palm kernel oil, soybean oil, olive extract, and fatty acid mixtures obtained by high-pressure decomposition of vegetable oils such as cottonseed oil by conventional methods, and separation and purification of these The resulting lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, palmitooleic acid, oleic acid, isomyristic acid isopalmitin and isostearic acid can be used alone or in combination.
[0006]
The counter ion of the fatty acid is potassium . The blending amount of the fatty acid soap can be appropriately determined according to the type of the fatty acid soap, the types of other components of the cleaning composition of the present invention, and the blending amount. Usually, it is preferable to set it as 10 to 45 weight%, especially 20 to 40 weight%. The soap of component (A) is potassium soap, and the proportion of potassium laurate in (A) soap is preferably 20% by weight to 80% by weight.
[0007]
(B) Carbonate (B) Carbonate is composed of sodium carbonate and potassium carbonate, and the weight ratio of sodium carbonate / potassium carbonate is 9/1 to 0.1 / 9.9, especially 8/2 to 2/8. Preferably there is.
In the cleaning composition of the present invention, the content of (B) carbonate is 5 to 15% by weight, preferably 8 to 12% by weight.
[0008]
(C) Glycol solvent The cleaning composition of the present invention is at least one (C) glycol solvent selected from the group consisting of dipropylene glycol, methyl glycol, methyl diglycol, methyl triglycol, ethyl glycol and ethyl diglycol. Contains solvent.
The content of the (C) glycol solvent is 1 to 10% by weight, preferably 3 to 8% by weight. Such a (C) glycol solvent provides a liquid detergent composition having a low viscosity even at low temperatures and excellent stability.
[0009]
(D) Builder The liquid detergent of the present invention preferably further contains 1 to 10% by weight of a compound represented by the following general formula (1) or a salt thereof.
[Chemical 3]
Figure 0004005353
[Wherein R 1 is H or CH 2 COOM; R 2 is H or CH 2 COOM; R 3 is represented by COOM, CH 2 COOM or the following formulas (2) and (3): Are substituents;
[Formula 4]
Figure 0004005353
R 4 is H, CH 3 , CH 2 COOM, CH 2 CH 2 COOM, or CH (OH) COOM. However, when R 4 is a hydrogen atom, R 1 and R 2 are not a hydrogen atom. M is a hydrogen atom, an alkali metal atom or ammonium. Examples of the alkali metal atom include sodium, potassium, and lithium. ]
[0010]
Specific examples of the compound represented by the general formula (1) or a salt thereof include aspartic acid diacetic acid (salt) (ASDA) represented by the following general formula (5) and glutamic acid diacetic acid represented by the general formula (6). (Salt) (GLDA), hydroxyimino disuccinic acid (salt) (HIDS) represented by general formula (7), imino disuccinic acid (salt) (IDS) represented by general formula (8), general formula (9) ) Carboxyethyliminosuccinic acid (salt) (CEIS), methylglycine diacetic acid (salt) (MGDA) represented by general formula (10), ethylenediamine disuccinic acid (salt) represented by general formula (11) (EDDS), ethylenediaminetetraacetic acid (salt) (EDTA) represented by the general formula (12).
[0011]
[Chemical formula 5]
Figure 0004005353
[0012]
[Chemical 6]
Figure 0004005353
[0013]
[Chemical 7]
Figure 0004005353
[0014]
(E) As additives and other components, fluorescent dyes, dispersants such as polyethylene glycol (PEG), polyvinyl pyrrolidone (PVP) and polyvinyl alcohol (PVA), or anti-transfer agents, antifoaming agents such as silicone / silica, Conventionally known components such as antioxidants, bluing agents and fragrances can be blended in known blending amounts.
Examples of fluorescent dyes include 4,4′-bis- (2-sulfostyryl) -biphenyl salt, 4,4′-bis- (4-chloro-3-sulfostyryl) -biphenyl salt, and 2- (styrylphenyl) naphtho. 1 to 2% by weight of a thiazole derivative, 4,4′-bis (triazol-2-yl) stilbene derivative, or bis (triazinylamino) stilbene disulfonic acid derivative is contained in the composition. For example, commercially available products such as Whiteex SA (manufactured by Sumitomo Chemical Co., Ltd.) and Chino Pearl CBS (manufactured by Ciba Geigy Co., Ltd.) can be used.
[0015]
Production method Also, the liquid detergent composition is a fatty acid obtained by decomposing animal oils such as beef tallow and sheep oil, plant oils such as coconut oil, palm kernel oil, soybean oil, olive oil and cottonseed oil, alone or Neutralize multiple types with aqueous solution of sodium hydroxide, potassium hydroxide, alkanolamine, etc., and add (B) carbonate, (C) glycol solvent, and other ingredients such as perfume and dye as necessary. , Mix.
[0016]
【Example】
(Examples 1-17, Comparative Examples 1-4)
(A) Fatty acid soap shown in Tables 1-3, (B) Carbonate, (C) Glycol solvent, and (D) Builder as needed were added to produce a liquid detergent composition.
The cleaning power, viscosity and stability of the obtained cleaning agent were evaluated by the following methods. The results are shown in Tables 1-3.
[0017]
(1) Detergency test Using artificial hard water prepared with calcium chloride to a hardness of 50 ppm and 100 ppm (calcium carbonate equivalent) in ion-exchanged water at a temperature of 20 ° C., 1.5 g is added to 1 liter of the artificial hard water, A cleaning solution for the test solution was prepared. For each of these cleaning solutions, 10 sheets of contaminated cloth (Laundry Science Society contaminated cloth) were added, the bath ratio was adjusted to 1:30, and the garnet was washed with a targot meter at 120 rpm for 10 minutes, and then rinsed for 3 minutes. I went twice. After the contaminated cloth of the cleaning liquid was dried, the reflectance was measured. The reflectance of the base cloth before making it into the contaminated cloth and the contaminated cloth before washing are measured in advance, and from the reflectance of the base cloth and the contaminated cloth before and after washing, the washing rate is calculated by the following formula (Kubelka-Munk formula). Was calculated.
[0018]
[Expression 1]
Figure 0004005353
[Expression 2]
Figure 0004005353
[0019]
(2) Viscosity measurement Using a BM viscometer manufactured by Tokimec Co., Ltd., the viscosity was measured at 5 ° C and 25 ° C.
[0020]
(3) Stability test over time Put the compounded products shown in the table in a polypropylene container, and rank the condition after storage for 1 month in a thermostat at -5 ° C, 0 ° C, 40 ° C based on the following evaluation criteria. did.
○: Appearance is transparent, no abnormality, and fluidity is very good.
Δ: Appearance is transparent, but the viscosity is very high (candy-like).
X: Solidification, cloudiness or precipitation.
[0021]
[Table 1]
Figure 0004005353
[0022]
[Table 2]
Figure 0004005353
[0023]
[Table 3]
Figure 0004005353
[0024]
Fatty acid soap: potassium oleate / potassium laurate = 60/40
DPG: Dipropylene glycol CH 3 CH (OH) CH 2 OCH 2 CH (OH) CH 3 ,
MG: methyl glycol CH 3 OCH 2 CH 2 OH,
MDG: methyl diglycol CH 3 O (CH 2 CH 2 O) 2 H,
MTG: methyltriglycol CH 3 O (CH 2 CH 2 O) 3 H,
EG: ethyl glycol CH 3 CH 2 OCH 2 CH 2 OH,
EDG: ethyl diglycol CH 3 CH 2 O (CH 2 CH 2 O) 2 H,
PG: Propylene glycol CH 3 CH (OH) CH 2 OH,
MPG: methyl propylene glycol CH 3 OCH 2 CH (OH) CH 3
Potassium silicate: A potassium silicate (manufactured by Nippon Chemical Industry Co., Ltd.)
ASDA: sodium aspartate diacetate GLDA: sodium glutamate diacetate MGDA: sodium methylglycine diacetate HIDS: sodium hydroxyimino disuccinate IDS: sodium imino disuccinate CEIS: sodium carboxyethyl imino succinate EDDS: sodium ethylenediamine disuccinate EDTA: ethylenediaminetetraacetic acid sodium citric acid: citric acid monohydrate ethanol: geraniol modified
【The invention's effect】
According to the present invention, there is provided a liquid detergent composition having a high detergency, a low viscosity even at a low temperature, and a very excellent stability over time.

Claims (2)

(A)石鹸中に占めるラウリン酸カリウムの比率が20重量%以上80重量%以下であるカリウム石鹸10〜45重量%、(B)炭酸ナトリウム及び炭酸カリウムからなり、炭酸ナトリウム/炭酸カリウムの重量比が9/1〜0.1/9.9である炭酸塩5〜15重量%、及び(C)ジプロピレングリコール、メチルグリコール、メチルジグリコール、メチルトリグリコール、エチルグリコール及びエチルジグリコールからなる群より選ばれる少なくとも一種のグリコール系溶剤1〜10重量%、を含有することを特徴とする液体洗浄剤組成物。(A) The ratio of potassium laurate in the soap is 20% to 80% by weight, 10 to 45% by weight of potassium soap, (B) sodium carbonate and potassium carbonate, and the weight ratio of sodium carbonate / potassium carbonate 5 to 15% by weight of carbonate having a ratio of 9/1 to 0.1 / 9.9 , and (C) the group consisting of dipropylene glycol, methyl glycol, methyl diglycol, methyl triglycol , ethyl glycol and ethyl diglycol A liquid detergent composition comprising 1 to 10% by weight of at least one glycol solvent selected from the above. 更に下記一般式(1)で表される化合物若しくはその塩を1〜10重量%含有する請求項1に記載の組成物。
Figure 0004005353
[式中、Rは、H又はCHCOOMであり;Rは、H又はCHCOOMであり;Rは、COOM、CHCOOM又は次式(2)、(3)で表される置換基であり;
Figure 0004005353
は、H、CH、CHCOOM、CHCHCOOM、CH(OH)COOMであり、但し、Rが水素原子の時は、R、Rは水素原子ではない。Mは、水素原子、アルカリ金属原子又はアンモニウムである。]
Furthermore, the composition of Claim 1 containing 1-10 weight% of compounds or its salt represented with following General formula (1).
Figure 0004005353
[Wherein R 1 is H or CH 2 COOM; R 2 is H or CH 2 COOM; R 3 is represented by COOM, CH 2 COOM, or the following formulas (2) and (3): Are substituents;
Figure 0004005353
R 4 is H, CH 3 , CH 2 COOM, CH 2 CH 2 COOM, or CH (OH) COOM. However, when R 4 is a hydrogen atom, R 1 and R 2 are not a hydrogen atom. M is a hydrogen atom, an alkali metal atom or ammonium. ]
JP2001387966A 2001-12-20 2001-12-20 Liquid detergent composition Expired - Lifetime JP4005353B2 (en)

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