CN102876489B - Neutral washing powder and preparation method thereof - Google Patents

Abstract

The invention provides a neutral washing powder with a new compound formula. The washing powder contains neutralizing agents and powder spraying and forming auxiliaries, namely organic acids and does not contain such alkaline materials as sodium silicate and sodium carbonate. The washing powder can effectively protect fabric fibers, care clothes, is truly inirritative in hand washing, has good dissolubility, is quickly dissolved under low temperature and adopts the spray drying production process. The specific feeding sequence is adopted during slurry mixing, so that the washing powder particles with moderate strength and good flowability can be produced with the formulas under the conditions of high active agent system and absence of powder spraying skeleton sodium silicate materials. The washing powder has strong detergency under neutral condition and achieves the effect of washing and caring unification.

Description

A kind of neutral detergent and preparation method thereof

Technical field

The invention belongs to daily-use chemical industry technical field, specifically, relate to a kind of neutral detergent and preparation method thereof.

Background technology

Current regular powder and the concentrated detergent powder of various brands on the market, be alkaline system, and washing powder solution is alkalescence, pH value 10.3 ~ 11.Alkali itself to spot particularly lipid dirt have wetting, dissolving, emulsification, dispersion until removal effect, other effective constituent in alkali and washing powder formula also has collaborative soil-removing action.General alkali washing powder adopts drying process with atomizing, basic materials water glass in its formula plays a crucial role to slip spray shaping, formula mesosilicic acid sodium content is low or almost can not moulding containing the washing powder particle of water glass, cannot form the spheroidal hollow bead of good fluidity, intensity difference, easily caking, makes troubles to production, storage, transportation.Alkaline system washing powder has its intrinsic shortcoming, and due to containing basic materials, and human body skin is slightly acidic, pH value 6.5 left and right, therefore when washing powder solution contact skin people's cognition do not feel like oneself, satiny, scorching hot etc., skin irritation.And silk, wool fabric should not be used alkalis washing, thereby alkali can make the protein generation sex change damage fabric in a wool fabric.Cotton fabric also can turn to be yellow, harden under the long-term washing of general alkali washing powder.And more should not use the washing of general alkali washing powder as adult's underwear underclothes, infantile clothes.In addition, owing to containing basic materials water glass in alkaline system washing powder, detergent dissolving is declined, particularly in high-hardness water area, washing powder is compared with indissoluble solution, the next more indissoluble of low temperature solution.

Due to the intrinsic shortcoming of general alkali washing powder, hinder hand, hinder clothing, be not suitable for washing underskirt thing, infantile clothes, can not wash high-grade silk wool fabric especially, therefore, it is neutral that exploitation is, and do not hinder hand and do not hinder again clothing, is applicable to the dry production technique of spraying simultaneously, washing powder grain forming is good, solvability is good, strong detergency, and the washing powder that is suitable for the washings such as high-grade cotton fabric, silk sweater thing, underskirt thing becomes problem demanding prompt solution.

Summary of the invention

The object of this invention is to provide one and do not hinder hand, do not hinder clothing, solvability is good, strong detergency, and washing powder grain forming is good, good fluidity, is suitable for the neutral detergent of high-grade fabric washing.

Another object of the present invention is to provide above-mentioned neutral detergent's preparation method.

In order to realize the object of the invention, a kind of neutral detergent of the present invention, comprise following component: organic acid, anion surfactant, nonionogenic tenside, polycarboxylate, CMC(Xylo-Mucine), STS(paratoluenesulfonic acid sodium salt), 4A zeolite and zymin etc.

In aforementioned neutral detergent, also contain whitening agent, essence and sodium sulfate etc.

Wherein, described organic acid is citric acid (comprising Citric Acid, usp, Anhydrous Powder, Citric acid monohydrate Food grade), oxalic acid, HEDP(1-Hydroxy Ethylidene-1,1-Diphosphonic Acid), DTPA(diethylene triamine pentacetic acid (DTPA)), EDTA(ethylenediamine tetraacetic acid (EDTA)), one or more in tartrate, oxysuccinic acid etc.

Described anion surfactant is LAS(linear alkylbenzene sulphonic acid), FAS(sodium soap, be commonly called as " soap "), K ₁₂(Sodium Lauryl Sulphate BP/USP), MES(fatty acid methyl ester sulfonate), AES(fatty alcohol polyoxyethylene ether sulfate), AEC(aliphatic alcohol polyethenoxy ether carboxylate), AOS(alpha-olefin sodium sulfonate) etc. in one or more.Preferably LAS MES, LAS K ₁₂compound system.

Described nonionogenic tenside is straight chain alcohol ether AEO series (fatty alcohol-polyoxyethylene ether, EO number is 7,9,11), isomery alcohol ether series (isomery C10 polyoxyethylenated alcohol, isomery C11 polyoxyethylenated alcohol, isomery C13 polyoxyethylenated alcohol), APG(alkyl glycoside) etc. in one or more.Preferably straight chain alcohol ether, APG etc.

Described CMC(Xylo-Mucine) substitution value be 0.4 ~ 1.5, preferably substitution value is 0.7 ~ 1.2.

Described polycarboxylate is preferably 3 ~ 6kD of molecular weight 1 ~ 10kD() polyacrylate, preferably 30 ~ 50kD of molecular weight 5 ~ 100kD() polyacrylic acid-maleate, preferably 3 ~ 10kD of molecular weight 2 ~ 50kD() polystyrene-acrylate etc. in one or more.

Described zymin comprises one or more in proteolytic enzyme, lipase, cellulase, amylase, mannase etc.

Described whitening agent is stilbene biphenyl fluorescent brightener, two triazine amido diphenyl ethylene fluorescent bleaches, or their combination.

Aforesaid neutral detergent, the weight percentage of each component is: organic acid 0.1% ~ 10%, anion surfactant 5% ~ 50%, nonionogenic tenside 0.5% ~ 10%, polycarboxylate 0.1% ~ 10%, Xylo-Mucine 0.1 ~ 20%, paratoluenesulfonic acid sodium salt 0.1% ~ 5%, 4A zeolite 1% ~ 50%, zymin 0.1% ~ 5%, whitening agent 0.01% ~ 1%, essence 0.01% ~ 1%, surplus is sodium sulfate, pH value 6 ~ 8.

Wherein, organic acid content is preferably 0.05% ~ 8%, and more preferably 0.1% ~ 6%; Anionic surfactant concentration is preferably 10% ~ 40%, and more preferably 15% ~ 30%; Non-ionic surfactant concentration is preferably 1% ~ 8%, and more preferably 2% ~ 6%; Polycarboxylate content is preferably 0.5% ~ 8%, and more preferably 1% ~ 5%; Carboxymethylcellulosodium sodium content is preferably 0.5% ~ 8%, and more preferably 1% ~ 5%; Tosic acid sodium content is preferably 0.5% ~ 3%, and more preferably 0.8% ~ 2%; 4A zeolite content is preferably 5% ~ 35%, and more preferably 10% ~ 20%; Zymin content is preferably 0.2% ~ 3%, and more preferably 0.5～2%; Whitening agent content is preferably 0.02% ~ 0.8%, and more preferably 0.05% ~ 0.5%.

The present invention also provides above-mentioned neutral detergent's preparation method, comprises the steps:

1) add successively in proportion water, anion surfactant, polycarboxylate, Xylo-Mucine, organic acid, paratoluenesulfonic acid sodium salt, whitening agent, 4A zeolite and sodium sulfate, after mixing, be mixed with the slip of 60% ~ 75% solid content, batch temperature is controlled at 65 ~ 75 ℃;

2) slip after filtration, aging after, grind, then the dry original washing powder of making of spraying;

3) original washing powder send aging, screening through wind, then enters rear allotment of labor's order;

4) original washing powder and nonionogenic tenside, zymin and essence are mixed in proportion, discharging, obtains.

The invention provides a kind of pH value and be neutral (pH value 6 ~ 8), contain neutralizing agent, the shaping assistant organic acid that dusts, do not use the washing powder of the novel composition formula of the basic materials such as water glass, sodium carbonate, adopt drying process with atomizing production.Science by tensio-active agent, auxiliary agent, neutralizing agent in formula is composite, makes this product under neutrallty condition, also have very strong detersive power.

(1) by adding neutralizing agent, the shaping assistant organic acid that the dusts low basicity that in neutralizing and filling a prescription, relevant weakly alkaline raw material is brought into, reduce the impact of raw material alkalescence on product, make said composition formula pH really be neutrality; Make formula under the condition of exoskeletal water glass, still can produce the spheroidal hollow bead washing powder of good fluidity simultaneously;

(2) in formula, do not add basic materials, as water glass, sodium carbonate, sodium hydroxide, lamina sodium silicate, the contour basic materials of Starso;

(3) composite by the science of tensio-active agent, auxiliary agent, neutralizing agent, make formula under neutrallty condition, really accomplish not hinder clothing and do not hinder hand, solvability is better than general alkali washing powder simultaneously, under normal temperature and cold condition, all can dissolve rapidly;

(4) composite by the science of tensio-active agent, auxiliary agent, neutralizing agent, make formula under neutrallty condition, at the real clothing of not hindering, not hinder under the prerequisite of hand, clearing power is high, can effectively remove spot.

Accompanying drawing explanation

Fig. 1 is the neutral detergent preparation technology schema of preferred embodiment of the present invention.

Embodiment

Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.If do not specialize, the conventional means that in embodiment, technique means used is well known to those skilled in the art, the raw materials used commercial goods that is.

The percentage sign " % " relating in following examples, if not specified, refers to weight percent.

Embodiment neutral detergent and preparation thereof

1.1 neutral detergent's composition and preparations thereof

Table 1 neutral detergent's formula

Preparation method, comprises step:

1) add successively in proportion water, anion surfactant, polycarboxylate, Xylo-Mucine, organic acid, paratoluenesulfonic acid sodium salt, whitening agent, 4A zeolite and sodium sulfate, after mixing, be mixed with the slip of 60% ~ 75% solid content, batch temperature is controlled at 65 ~ 75 ℃;

2) slip after filtration, aging after, grind, by high-pressure pump, sent into atomization in spray tower and sprayed, after heat exchange, slip becomes spheroidal hollow bead, then at the bottom of action of gravity drops down onto tower belt, make original washing powder;

3) at the bottom of tower, belt original washing powder send aging, screening through wind, then enters rear allotment of labor's order;

4) original washing powder and thermo-sensitivity raw material (comprising nonionogenic tenside, zymin and essence etc.) being added in proportion in mixing tank and mixed, is discharging, packing after having mixed.

Technical process as shown in Figure 1.

1.2 pairs of above-mentioned 8 kinds of Example formulations and commercially available washing powder carry out pH mensuration (GB/T13171) experiment

Result is as shown in table 2.

Table 2pH pH-value determination pH result

1.3 solvabilities, skin irritation, fabric softening test

1.3.1 condition: hand washing/10g test washing powder/2L water/3 white cotton towel/bath raio 1:10/ towel repeated washing 3 times;

Washing rinsing time: immersion 5min/ hand washing 5min/ rinsing 3 times (use respectively 2L water first 2 times, use 1L water the 3rd time)/naturally dry.

1.3.2 evaluation method: the experimenter of 50 (30 Mies, 20 men) hand skin sensitivities of random choose carries out above washing test, respectively the hand pungency in solvability, the washing process to washing powder, washed sensation, towel after hand dries naturally and naturally dried the marking of rear pliability sensation, specific as follows:

1) solvability evaluation: 1 point: be difficult to molten; 2 points: compared with indissoluble; 3 points: general; 4 points: better; 5 points: fine;

2) in washing process, hand pungency is evaluated: 1 point: stimulate very much, hinder very much hand; 2 points: stimulate, hinder hand; 3 points: have point stimulation, hinder hand a little; 4 points: feel not obvious; 5 points: feel is better;

3) washed hand and naturally dried rear pungency evaluation: 1 point: very dry, very stimulation; 2 points: more dry, stimulation; 3 points: somewhat dry, have a point stimulation; 4 points: feel not obvious; 5 points: better, more comfortable;

4) towel pliability is evaluated: 1 point: very hard; 2 points: somewhat hard; 3 points: general; 4 points: all right, soft; 5 points: fine, very soft.

1.3.3 evaluating result

Result as shown in Table 3 and Table 4.

Table 3 solubility experiment result

Category	Data
		Embodiment 1	4.5
Embodiment 2	4.6
		Embodiment 3	4.8
Embodiment 4	4.7
		Embodiment 5	4.6
Embodiment 6	5.0
		Embodiment 7	4.8
Embodiment 8	4.9
		Common commercially available washing powder I	2.8
Common commercially available washing powder II	3.5
		Common commercially available washing powder III	3.2

Table 4 is hand-washed pungency and towel pliability evaluating result (mean value)

1.4 detergency tests (GB13174)

Result is as shown in table 5.

Table 5-decontamination data (whiteness difference)

From above each test and experimental result, can find out, the neutral detergent of the present invention pH value of filling a prescription is 7.0 left and right, stimulation, the care of clothing, the solvability aspect of the washing powder of each Example formulations to skin is generally better than general alkali washing powder, detersive power is also strong than commercially available regular powder, has reached and has washed the effect of protecting unification.

Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.

Claims (8)

1. neutral detergent, it is characterized in that, according to weight percentage meter, comprise: organic acid 0.1%～10%, anion surfactant 5%～50%, nonionogenic tenside 0.5%～10%, polycarboxylate 0.1%～10%, Xylo-Mucine 0.1～20%, paratoluenesulfonic acid sodium salt 0.1%～5%, 4A zeolite 1%～50% and zymin 0.1%～5%, whitening agent 0.01%～1%, essence 0.01%～1%, surplus is sodium sulfate, pH value 6～8.

2. neutral detergent according to claim 1, is characterized in that, described organic acid is one or more in citric acid, oxalic acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, diethylene triamine pentacetic acid (DTPA), ethylenediamine tetraacetic acid (EDTA), tartrate, oxysuccinic acid.

3. neutral detergent according to claim 1, it is characterized in that, described anion surfactant is one or more in linear alkylbenzene sulphonic acid, sodium soap, Sodium Lauryl Sulphate BP/USP, fatty acid methyl ester sulfonate, fatty alcohol polyoxyethylene ether sulfate, aliphatic alcohol polyethenoxy ether carboxylate, alpha-olefin sodium sulfonate.

4. neutral detergent according to claim 1, is characterized in that, described nonionogenic tenside is one or more in straight-chain fatty alcohol Soxylat A 25-7, isomery fatty alcohol-polyoxyethylene ether, alkyl glycoside.

5. neutral detergent according to claim 1, it is characterized in that, described polycarboxylate is one or more in polystyrene-acrylate of polyacrylic acid-maleate, molecular weight 2～50kD of polyacrylate, the molecular weight 5～100kD of molecular weight 1～10kD.

6. neutral detergent according to claim 1, is characterized in that, described zymin comprises one or more in proteolytic enzyme, lipase, cellulase, amylase, mannase.

7. neutral detergent according to claim 1, is characterized in that, described whitening agent is stilbene biphenyl fluorescent brightener, two triazine amido diphenyl ethylene fluorescent bleaches, or their combination.

8. the method for preparing neutral detergent described in claim 1-7 any one, is characterized in that, comprises the steps:

1) add successively in proportion water, anion surfactant, polycarboxylate, Xylo-Mucine, organic acid, paratoluenesulfonic acid sodium salt, whitening agent, 4A zeolite and sodium sulfate, after mixing, be mixed with the slip of 60%～75% solid content, batch temperature is controlled at 65～75 ℃;

2) slip after filtration, aging after, grind, then the dry original washing powder of making of spraying;

3) original washing powder send aging, screening through wind, then enters rear allotment of labor's order;

4) original washing powder and nonionogenic tenside, zymin and essence are mixed in proportion, discharging, obtains.

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