JP2001064699A - Powdery detergent composition for laundry - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition which does not contain a water- insoluble component in a large amount, exhibits high washing power against oil stains and protein stains, and scarcely generates nasty smells, when dried in calender rolls, by compounding a specific nonionic surfactant and a polymer. SOLUTION: This nonionic powdery detergent composition for laundries does not contain zeolite and a perfume, and contains (A) one or more kinds of nonionic surfactants expressed by the formula: R1-O-(R2)n1-(R3)n2-H [R1 is an 8 to 20C primary or secondary alkyl or alkenyl; R2 and R3 are respectively ethylene oxide addition unit and propylene oxide addition unit; (n1) is 4 to 16; (n2) is 0 to 4], and (B) a nonionic polymer comprising alkylene terephthalate units and/or alkylene isophthalate units and polyoxyalkylene units and has a weight-average mol.wt. of 2,000 to 35,000. The contents of the components A and B in the detergent composition are preferably 3 to 20 wt.% and 0.05 to 10 wt.%, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laundry powder detergent for washing linens such as hotel and hospital sheets and wrappers, particularly in the field of linen supplies, and more particularly to a zeolite and fragrance free product. The present invention relates to a nonionic powder detergent composition which has a high detergency against oil stains and protein stains on linen after washing, and has a low off-flavor even when dried with a calendar roll.

[0002]

2. Description of the Related Art In order to take advantage of the property that nonionic surfactants have good cleaning performance against oil stains, powder detergents using nonionic surfactants as main surfactants have been developed in various forms in recent years. JP-A-06-9999
JP, JP-A-06-10000, JP-A-06-0000
As described in JP-A-100899 and JP-A-08-92591, a detergent composition which exhibits good washing performance by combining an alcohol ethoxylate having specific properties and an aluminosilicate is disclosed. . However, assuming that a continuous washing machine used for washing linen is used, the detergent is diluted with water in a detergent dissolving tank and then added to the washing machine. If a large amount of water-insoluble substances such as silicates are contained, a large amount of sediment may be formed in the detergent dissolution tank or impurities may adhere to the piping, causing troubles such as blockage of the piping. Become. On the other hand,
For the purpose of improving the cleaning performance, a method in which an anionic surfactant is used in combination as disclosed in JP-A-8-176590 is disclosed. However, in this method, when the vertical washing of the continuous washing machine is performed, a very large amount of foam is generated, and troubles such as performance degradation due to the foam and malfunction of sensors are caused. Further, since the nonionic surfactant described in the above publications contains a nonionic surfactant having a small number of moles of unreacted alcohol or ethylene oxide in the components, the linen is dehydrated and then dried with a calender roll. At the time of drying, a specific odor which is considered to be derived from a nonionic surfactant having a small number of moles of unreacted alcohol or ethylene oxide adsorbed by the heat at the time of drying is generated, which causes a problem of deteriorating the working environment. To solve these problems, Japanese Patent Application Laid-Open
As described in JP-A-1788397, there is a method in which a fragrance is added to the composition to change the odor to a good one by masking, but in the field of linen supply for an unspecified number of users, palatability is high. It is not preferable to use a fragrance which influences the problem, and it is desired to solve these problems.

[0003]

DISCLOSURE OF THE INVENTION The present invention has a high detergency against oil stains and protein stains without containing a large amount of water-insoluble components such as zeolite and without a fragrance. It is another object of the present invention to provide a nonionic laundry powder detergent composition which generates less offensive odor even when dried with a calender roll.

[0004]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the problems, and as a result, by using a nonionic surfactant having a specific alkylene oxide distribution and a specific polymer compound in combination, The present inventors have found that they have a high washing performance for both stains and protein stains, and that there is little generation of unpleasant odor even when calender rolls are dried and the working environment is not deteriorated. That is, the powder detergent composition of the present invention contains one or more nonionic surfactants (A) selected from the following general formula (I) in a nonionic powder detergent composition containing no zeolite and flavor. And

[0005]

R1-O- (R2) n1- (R3) n2-H (I) (R1: a primary or secondary alkyl or alkenyl group having 8 to 20 carbon atoms, R2: an additional unit of ethylene oxide, R3: an additional unit of propylene oxide, n1 represents the average number of moles of ethylene oxide and a number of 4 to 16, and n2 represents the average number of moles of propylene oxide and a number of 0 to 4)

However, when the average addition mole number of ethylene oxide having the largest amount is n1MAX, and the total amount of nonionic surfactants in which the average addition mole number of n1 is in the range of n1MAX-2 to n1MAX + 2 is Yi. One or more nonionic surfactants selected from the group consisting of Yi ≧ 70% by weight, and a nonionic polymer compound comprising an alkylene terephthalate and / or alkylene isophthalate unit and a polyoxyalkylene unit. And a polymer compound (B) having a weight average molecular weight of 2,000 to 35,000.

[0007]

Embodiments of the present invention will be described below in more detail. (A) used in the present invention
The nonionic surfactant of the component is an alcohol alkoxylate having a specific alkylene oxide distribution represented by the general formula (I). The alcohol used as a raw material of the nonionic surfactant (A) may be a synthetic alcohol or a natural alcohol, and may be a linear primary alcohol, an α-methyl branched primary alcohol, a multibranched primary alcohol, a linear secondary alcohol, or the like. For example,
Palm alcohol, alcohol derived from palm kernel oil, natural alcohol partial distillate known by the trade name of Conol, dimer or trimer of butene represented by Diadol, Dovanol, or Sophthanol or trimer to pentamer of propylene And synthetic alcohols obtained from In the present invention, these mixtures may be used, and ethylene oxide and / or propylene oxide may be added to two or more kinds of raw material alcohols.

The average addition mole number n1 shown in the component (A) of the present invention means the number of moles of ethylene oxide to be reacted with respect to 1 mole of the alcohol used. n1
Is preferably from 4 to 16, more preferably from 5 to 15. When n1 is a number smaller than 4, alcohol odor becomes strong, which is not preferable. If n1 is larger than 16, the detergency against oily stains decreases, and the addition distribution of ethylene oxide is undesirably wide.
The nonionic surfactant used in the present invention is a nonionic surfactant in which the average addition mole number of the largest amount of ethylene oxide is n1MAX, and the average addition mole number of n1 is n1MAX-2 to n1MAX + 2. When the total amount is Yi, Yi ≧ 70% by weight, preferably Yi is 75% by weight or more. When Yi is 70% by weight or more, no unpleasant odor is generated at the time of roll finishing. On the other hand, Yi is 7
If the amount is less than 0% by weight, an unpleasant odor is generated at the time of finishing the roll, which is not preferable in terms of work. Further, when n2 is a positive number, the average addition mole number n2MA is defined as n2MAX, where the average addition mole number of the largest amount of propylene oxide is n2MAX.
The nonionic surfactant having X is preferably 15% by weight or more, more preferably 20% by weight or more of the total nonionic surfactant. If the nonionic surfactant having n2MAX is less than 15% by weight of the total nonionic surfactant, an unpleasant odor is generated at the time of finishing the roll, which is not preferable in terms of work. Such a nonionic surfactant is incorporated in the detergent composition in an amount of 3 to 20% by weight, preferably 5 to 18% by weight, more preferably 5 to 15% by weight. If the amount is less than 3% by weight, the detergency decreases, which is not preferable. On the other hand, if the blending amount exceeds 20% by weight, the flowability of the detergent powder decreases, which is not preferable.

In the present invention, the above-mentioned nonionic surfactant is obtained, for example, by distilling the nonionic surfactant,
It can be easily obtained by a method of obtaining only a predetermined fraction, or by adding ethylene oxide to fatty acid alcohol or the like using a specific alkoxylation catalyst. Here, as the alkoxylation catalyst, for example, an alkoxylation catalyst described in JP-B-06-15038 can be used. Specifically, Al (trivalent cation), Ca (trivalent cation), In (trivalent cation), TI (trivalent cation), Co (trivalent cation),
Sc (trivalent cation), La (trivalent cation), Mn
Magnesium oxide to which a metal ion such as (a divalent cation) is added can be used. These solid catalysts are removed by filtration after the completion of the addition reaction. The ethylene oxide addition distribution in the nonionic surfactant can be easily determined by, for example, ZORBAX C8 (manufactured by DuPont) as a column, or HPLC (high-performance liquid chromatography) using a mixed solvent of acetonitrile and water as a mobile phase. Can be measured.

The nonionic polymer compound (B) used in the present invention is obtained by polymerizing alkylene terephthalate and / or alkylene isophthalate units and polyoxyalkylene terephthalate units at random or in blocks. Ethylene terephthalate, propylene terephthalate, butylene terephthalate and mixtures thereof,
Among them, ethylene terephthalate is preferred. The alkylene terephthalate and the alkylene isophthalate may be randomly polymerized or block polymerized. Examples of the polyoxyalkylene include polyoxyethylene, polyoxypropylene, polyoxyethylene polyoxypropylene, and the like.

As the nonionic polymer compound (B) of the present invention, those having a weight average molecular weight of 2,000 to 35,000 are used, and when the weight average molecular weight is outside this range, a good detergency against protein stains cannot be obtained. Methods for producing the nonionic polymer compound as the component (B) of the present invention are disclosed in various documents, textbooks, patents, and the like. For example, Journal of Polymer Science
nce, vol. 3, pages 609-630 (1948)
Year), Journal of Polymer Sci
ence, vol. 8, pages 1 to 22 (1951),
The method described in JP-A No. 61-218699 may be used, or the method may be used to manufacture using other methods. Preferable specific examples of the nonionic polymer compound (B) of the present invention include SRC-1 (trade name, Cla, Germany).
manufactured by Riant GmbH, weight average molecular weight of about 700
0) is commercially available. The nonionic polymer compound of the component (B) of the present invention is contained in the composition in an amount of 0.1%.
It is used in the range of 05 to 10% by weight, preferably 0.1 to 7%, more preferably 0.2 to 5%. Outside this range, the washing performance is not sufficiently exhibited, which is not preferable.

[0012] In addition to the above essential components, other components suitable for powder detergents can be added to the product of the present invention, if necessary. As these components, a nonionic surfactant described in the claims and another surfactant may be used in combination. Other surfactants include nonionic surfactants, anionic surfactants, amphoteric surfactants, and the like. Examples of the nonionic surfactant include an alcohol alkoxylate obtained by adding ethylene oxide and / or propylene oxide to a natural alcohol or a synthetic alcohol, and these may be used in combination within a range that does not cause a problem of odor when drying a calender roll. The anionic surfactant and the amphoteric surfactant are preferably used together within a range that does not cause foaming during washing. Other components include soaps, builders, alkaline agents, optical brighteners, redeposition inhibitors, enzymes and bactericides. The soap used in the present invention is a salt of a higher fatty acid having a total carbon number of 10
To 22, especially 12 to 18 are preferred. Examples of the salt include, for example, alkali metal salts such as sodium and potassium, ammonium salts, and substituted ammonium salts such as methylammonium, diethylammonium, and trimethylammonium. Of these, sodium salts are particularly preferable. And potassium salts. This fatty acid salt directly saponifies natural animal and vegetable fats and oils such as beef tallow, palm oil, coconut oil, palm kernel oil and the like, or neutralizes fatty acids or synthetic fatty acids derived therefrom. Manufactured by Soap as fatty acid salt is 1-20% by weight
It is suitable to mix, preferably 2 to 15% by weight.

Among the builders used in the present invention, inorganic builders include silicates, silicates such as sodium metasilicate, carbonates, sesquicarbonates and the like, and these are also effective as alkaline agents. Sulfates are also useful as fillers. Examples of the divalent metal ion scavenger include orthophosphate, pyrophosphate, tripolyphosphate, aminocarboxylate, hydroxycarboxylate, cyclocarboxylate, ether carboxylate, and hydroxyaminocarboxylate. As the polymer builder, a polycarboxylic acid polymer or a salt thereof, for example, polyacrylic acid, polyacetal carboxylic acid, polyaconitic acid, polyitaconic acid, polycitraconic acid, polyfumaric acid, polymaleic acid, polymethaconic acid, poly-α -Hydroxyacrylic acid, polyvinyl sulfonic acid, sulfonated polymaleic acid, maleic anhydride-methyl vinyl ether copolymer, maleic anhydride-styrene copolymer, maleic anhydride-methyl vinyl ether copolymer, maleic anhydride-ethylene copolymer Coalescing, maleic anhydride-ethylene crosslink copolymer, maleic anhydride-vinyl acetate copolymer, maleic anhydride-acrylonitrile copolymer,
Derived from maleic anhydride-acrylic acid copolymer, maleic anhydride-acrylic ester copolymer, maleic anhydride-butadiene copolymer, maleic anhydride-isoprene copolymer, maleic anhydride and carbon monoxide Poly
β-ketocarboxylic acid, itaconic acid-ethylene copolymer,
Itaconic acid-accounit acid copolymer, itaconic acid-maleic acid copolymer, itaconic acid-acrylic acid copolymer,
Examples thereof include a malonic acid-methylene copolymer, a metaconic acid-fumaric acid copolymer, a glyoxyl polymer, a polysaccharide and a salt thereof. Among these, a maleic anhydride-acrylic acid copolymer is particularly preferred. The weight average molecular weight of the polymer builder is preferably from 1,000 to 100,000, particularly preferably from 10,000 to 100,000.

The fluorescent agent used in the present invention mainly includes a biphenyl type and an aminostilbene type. Commercially available polyethylene glycol and carboxymethylcellulose are effective as the anti-redeposition agent. Examples of the enzyme include protease, cellulase, amylase, and lipase.

[0015]

According to the present invention, a high detergency against oily stains and protein stains can be exhibited without containing a large amount of water-insoluble components such as zeolite, and even without a fragrance, and a calender. A nonionic laundry detergent composition that produces less off-flavor even when dried with a roll is obtained.

[0016]

EXAMPLES The present invention will be described in more detail below, but the present invention is not limited by these examples. In the following Examples and Comparative Examples, the following nonionic surfactants and polymers were used. (A) nonionic surfactant; nonionic A: low addition number less than 3 obtained by adding 7.2 moles of ethylene oxide of dovanol 23 alcohol is 1
7. Nonionic surfactant having a Yi value of less than 89% and a Yi value of 89% Nonion B: ethylene oxide of coconut alcohol
Nonionic surfactant having less than 1% of less than 3 moles added with 5 moles and having a Yi value of 87% Nonion C: 3 moles of low added moles with 12 moles of ethylene oxide of dovanol 23 alcohol added Less than 1%
Nonionic surfactant having a Yi value of less than 80% and a nonionic surfactant having a Yi value of 80% Nonionic D: propylene oxide having a Yi value of 90% and propylene oxide relative to the total nonionic amount obtained by adding 6 mol of ethylene oxide of coconut alcohol and 3 mol of propylene oxide Nonionic surfactant in which the proportion of 3 mol of adduct is 20% or more Nonion E: Yi value obtained by adding 15 mol of ethylene oxide and 2 mol of propylene oxide to a 3/1 mixed alcohol of diadol 13 / natural C12 alcohol Is 75%, and the ratio of adduct of 2 mol of propylene oxide to the total amount of nonionic is 20% or more. Nonionic surfactant: Nonionic F: obtained by adding 7.5 mol of ethylene oxide to dovananol 23 alcohol. Yi value is 45
% Nonionic surfactant Nonionic G: Diadol 13 / natural alcohol C12
Ethylene oxide 8 in 3/1 alcohol
1% is less than the low addition mole number 3 to which moles are added,
Nonionic surfactant having an i-value of 88% Nonionic H: ethylene oxide 20 of coconut alcohol
Nonionic surfactant having less than 1% of the low added mole number of less than 3 moles added and less than 1% and a Yi value of 78% Nonion I: 90% Yi value obtained by adding 3 moles of ethylene oxide to dovanol 23 alcohol Nonionic surfactant Nonionic J: Nonionic surfactant in which 15 mol of ethylene oxide and 2 mol of propylene oxide are added to diadol 13 alcohol Nonion K: Low addition number of moles in which 4.5 mol of ethylene oxide of dovananol 23 alcohol is added Less than 3 is 1
% Nonionic surfactant having a Yi value of less than 90%

(B) Polymer Compound Polymer A: A commercially available nonionic polymer compound (trade name: FR627) in which a polyethylene glycol unit and a polypropylene glycol unit are added to an alkylene terephthalate unit composed of terephthalic acid, isophthalic acid, and ethylene glycol. : Weight average molecular weight of about 10,000 manufactured by Ryogaku Kogyo Co., Ltd.) Polymer B: polyethylene glycol units in a weight ratio of 2: 5 and polypropylene glycol units in a weight ratio of alkylene terephthalate units composed of terephthalic acid and ethylene glycol. 1: 1 nonionic polymer compound (weight average molecular weight 7000) Polymer C: polyethylene glycol unit in a weight ratio of 1: 2 to an alkylene terephthalate unit composed of terephthalic acid and ethylene glycol, polypropylene Nonionic polymer compound containing a recall unit in a weight ratio of 2: 1 (weight average molecular weight 13000) Polymer D: a polyethylene glycol unit and a polypropylene glycol unit based on an alkylene terephthalate unit composed of terephthalic acid and ethylene glycol Commercially available nonionic polymer compound (trade name: SRC-1: Cl
ariant GmbH, weight average molecular weight of about 700
0)

Examples 1 to 7 and Comparative Examples 1 and 2 Powder detergent compositions having the compositions shown in Table 1 below were prepared and evaluated by the following test methods. Table 1 also shows the results. (Detergency test) Using the detergent compositions shown in Table 1, EMPA
Contaminated cloth EMPA106 manufactured by TESTMATERIAL
(Mineral oil / carbon, cotton) and EMPA111 (blood,
Cotton) was cut into 5 × 5 cm pieces, and each of the 5 pieces was cut into U.S.A. S.
After putting into a Terg-o-Tometer manufactured by Testing, washing for 10 minutes (50 ° C., 900 ml, tap water, washing concentration 1% owf, bath ratio 20 times), rinsing twice (40 ° C., (Tap water, 900 ml, 3 minutes) was repeated, then dehydrated for 1 minute and then dried. The reflectance Z value of the cleaning cloth was measured with a color difference meter Sigma 90 of Nippon Denshoku Co., Ltd., and the cleaning rate was determined by the following equation. The cleaning cloth is a contaminated cloth after cleaning, and the uncontaminated cloth is a cloth before dirt is attached. Cleaning rate (%) = (Reflectance of contaminated cloth−Reflectance of cleaning cloth) /
(Reflectance of contaminated cloth−Reflectance of uncontaminated cloth) × 100

[0019]

[Table 1]

The components used in Table 1 above are as follows. Soap: Soybean fat fatty acid sodium STPP: Sodium tripolyphosphate PEG1000: Polyethylene glycol (manufactured by Lion Chemical Co., Ltd., average molecular weight 1000) Fluorescent agent: 4,4-bis (2-sulfostyryl) biphenyl disodium (manufactured by Ciba Geigy) , Chino Pearl C
BS-X) Enzyme: Protease (Esperase 4.0T, manufactured by Novo Nordisk Bioindustry)

Examples 8 to 14 and Comparative Examples 3 and 4 Powder detergent compositions having the compositions shown in Table 2 below were prepared and evaluated by the following test methods. The results are also shown in Table 2. (Detergency test) Using the detergent composition shown in Table 2, EMPA
Contaminated cloth EMPA104 manufactured by TESTMATERIAL
(Olive / carbon, tet cotton) and EMPA117
(Blood / Milk / Carbon, Teto-cotton) cut into 5 × 5 cm pieces, 5 pieces each, and a test cloth attached to cotton broad 100 # cut into 30 × 30 cm pieces was washed for 10 minutes using a laboratory mini-watcher (60). C, tap water, 3 L, detergent concentration 1% owf, bath ratio 5 times), rinsed twice (40 ° C., tap water, 4 L), dehydrated, and dried. The reflectance Z value of the cleaning cloth was measured with a color difference meter Sigma 90 of Nippon Denshoku Co., Ltd., and the cleaning rate was determined by the following equation. The cleaning cloth is a contaminated cloth after cleaning, and the uncontaminated cloth is a cloth before adhering. Cleaning rate (%) = (Reflectance of contaminated cloth−Reflectance of cleaning cloth) /
(Reflectance of contaminated cloth−Reflectance of uncontaminated cloth) × 100

[0022]

[Table 2]

The components used in Table 2 are as follows. Soap: Soybean oil fatty acid sodium salt EDTA: Sodium ethylenediaminetetraacetate NTA: Sodium nitrilotriacetate Socaran CP7: Sodium salt of acrylic acid / maleic acid copolymer (acrylic acid / maleic acid = 5/5), average molecular weight 50,000 Socalane CP5: Acrylic acid / Maleic acid copolymer sodium salt (acrylic acid / maleic acid = 7/3), average molecular weight 70000 PEG6000: polyethylene glycol (manufactured by Lion Chemical Co., Ltd., average molecular weight 6000) Fluorescent agent: 4,4-bis (2- Sulfostyryl) biphenyl disodium (Ciba Geigy Co., Ltd., Tinopearl C)
BS-X) Enzyme: Protease (Esperase 4.0T, manufactured by Novo Nordisk Bioindustry)

Examples 15 to 21 and Comparative Examples 5 to 6 Powder detergent compositions having the compositions shown in Table 3 below were prepared and evaluated by the following test methods. Table 3 also shows the results. (Detergency test) Using the detergent compositions shown in Table 3, EMPA
TESTMATERIAL Contaminated Cloth EMPA101
(Olive / Carbon, Cotton) and EMPA116 (Blood / Milk / Carbon, Cotton) cut into 5 × 5 cm, 5 pieces each, cut into 30 × 30 cm cotton broad 10
The test cloth attached to 0 # is a batch type washing machine (ASAHI).
ECONOMAT 10) for 10 minutes (70
° C, tap water, detergent concentration 1% o. w. f. The bath was rinsed twice (30 ° C., tap water), dehydrated, and dried. The reflectance Z value of the cleaning cloth was measured with a color difference meter Sigma 90 of Nippon Denshoku Co., Ltd., and the cleaning rate was determined by the following equation. The cleaning cloth is a contaminated cloth after cleaning, and the uncontaminated cloth is a cloth before adhering. Cleaning rate (%) = (Reflectance of contaminated cloth−Reflectance of cleaning cloth) /
(Reflectance of contaminated cloth−Reflectance of uncontaminated cloth) × 100

[0025]

[Table 3]

The components used in Table 3 above are as follows. Soap: Soybean Fatty Acid Sodium Sodium Citrate Sodium Citrate: Reagent 1st grade trisodium citrate (anhydrous), Sokaran CP7 manufactured by Junsei Chemical Co., Ltd .: Acrylic acid / maleic acid copolymer sodium salt (acrylic acid / maleic acid = 5/5) ), Average molecular weight 50,000 (manufactured by BASF) Sokaran CP5: sodium salt of acrylic acid / maleic acid copolymer (acrylic acid / maleic acid = 7/3), average molecular weight 70000 (manufactured by BASF) SKS: crystalline layered sodium silicate WC: White Carbon; Tokuyama Soda Co., Ltd. Fluorescent agent: 4,4-bis {(4-anilino-6-morpholino-1,3,5-triazin-2-yl) amino} stilbene Disodium 2,2'-disulfonate (AMS, manufactured by Ciba Geigy Co., Ltd.) Enzyme: Protease (Novo Norde Disk Bio-Industry Co., Ltd., Esperase4.0T)

Examples 22 to 28, Comparative Examples 7 to 8 Powder detergent compositions having the compositions shown in Table 4 below were prepared and evaluated by the following test methods. Table 4 also shows the results. (Odor evaluation method) 30 × 70 using the detergent composition shown in Table 4.
cm broad cut (100 #) as a test cloth, which was washed for 10 minutes using a laboratory miniwatzer (50 ° C, tap water, 3 L, detergent 1% owf, bath ratio 5 times). After rinsing twice (25 ° C., tap water, 4 L) and then dehydrated to a moisture content of 70%, put on an ironing board, and smell the test cloth when finished with an iron having a surface temperature of 170 ° C. for 5 persons. Was evaluated according to the criteria shown in Table 5 and the average was obtained.

[0028]

[Table 5]

[0029]

[Table 4]

The components used in Table 4 above are as follows. Soap: Soybean Fatty Acid Sodium Sodium Citrate Sodium Citrate: Reagent 1st grade trisodium citrate (anhydrous), Sokaran CP7 manufactured by Junsei Chemical Co., Ltd .: Acrylic acid / maleic acid copolymer sodium salt (acrylic acid / maleic acid = 5/5) ), Average molecular weight 50,000 (manufactured by BASF) Sokaran CP5: sodium salt of acrylic acid / maleic acid copolymer (acrylic acid / maleic acid = 7/3), average molecular weight 70000 (manufactured by BASF) Fluorescent agent: 4,4- Bis {(4-anilino-6-morpholino-1,3,5-triazin-2-yl) amino} stilbene-2,2′-disulfonate disodium (AMS, manufactured by Ciba Geigy Co., Ltd.) Enzyme: Protease (Novo. (Nordisk Bioindustry, Esperase 4.0T)

Claims (1)

[Claims] 1. A nonionic powder detergent composition containing no zeolite and perfume, comprising a nonionic surfactant (A) represented by the following general formula (I): R1-O- (R2) n1- ( R3) n2-H ... (I) (R1: a primary or secondary alkyl group or alkenyl group having 8 to 20 carbon atoms, R2: an additional unit of ethylene oxide, R3: an additional unit of propylene oxide, n1: an additional unit of ethylene oxide The average number of moles added is 4 to 16, n2 is the average number of moles of propylene oxide added, and the number is 0 to 4, provided that the average number of moles of ethylene oxide having the largest amount is n1MAX, Yi ≧ 70% by weight, where Yi represents the total amount of nonionic surfactants having an average addition mole number in the range of n1MAX-2 to n1MAX + 2. One or more nonionic surface active agents, and, (B) a nonionic polymeric compound consisting of alkylene terephthalate and / or alkylene isophthalate units and polyoxyalkylene units, the weight average molecular weight 2000 350
A powder detergent composition for laundry, comprising the polymer compound of No. 00.