WO2019084976A1

WO2019084976A1 - Composition and laundry tablet for cleaning clothes and preparation method therefor

Info

Publication number: WO2019084976A1
Application number: PCT/CN2017/109679
Authority: WO
Inventors: 王耀; 王维; 伍彩红; 舒均成
Original assignee: 广东嘉丹婷日用品有限公司
Priority date: 2017-11-06
Filing date: 2017-11-07
Publication date: 2019-05-09
Also published as: CN107760479B; CN107760479A

Abstract

A composition and a laundry tablet for cleaning clothes and a preparation method therefor. The composition and the laundry tablet are composed of the following components: water, polyvinyl alcohol (PVA) or a modified polyvinyl alcohol (modified PVA), polyvinyl pyrrolidone (PVP) or a modified polyvinyl pyrrolidone (modified PVP) mixture, a potassium fatty alcohol sulfate, a sodium fatty alcohol sulfate, lauryl polyoxyethylene ether, citric acid, sodium carbonate, sodium hydroxide, a preservative, a plasticizer, a fatty acid potassium salt, and a fragrance. The composition for cleaning clothes has stronger detergency and better solubility. The invention ensures that clean laundry is softer and achieves an improvement of overall product performance.

Description

[Invention name established by ISA according to Rule 37.2] Composition for cleaning clothes, laundry sheet and preparation method thereof

Technical field

The present invention relates to the field of detergents, and more particularly to a cleaning garment composition, a laundry tablet and a method of preparing the same.

Background technique

The working principle of the laundry liquid is the same as that of the traditional washing powder and soap, and the active ingredients are all surfactants. The difference is: the traditional washing powder, the soap is anionic surfactant, mainly sodium alkyl sulfonate and sodium stearate, the alkalinity is strong (the washing powder PH is generally greater than 12), and then in use It is more irritating and harmful to the skin.

At present, the comprehensive performance of the laundry sheet on the market, such as detergency, solubility, and softness of the laundry, needs to be further improved.

Summary of the invention

In summary, it is necessary for the present invention to provide a composition for cleaning clothes. After washing the clothes, the product is more detergency, more soluble, and the laundry is softer and the overall performance of the product is better. .

Further, the present invention is also necessary to provide a laundry sheet prepared by the above cleaning clothes composition.

Further, the present invention is also necessary to provide a method of preparing the above laundry sheet.

A composition for cleaning clothes consisting of the following weight percentage components:

Polyvinyl alcohol (PVA) or modified polyvinyl alcohol (modified PVA) 7-22%;

Polyvinylpyrrolidone (PVP) or modified polyvinylpyrrolidone mixture (modified PVP) 1-10%;

Fatty alcohol sulfate potassium 10-25%;

Fatty alcohol sodium sulfate 0-10%;

Lauryl alcohol polyoxyethylene ether 1-10%;

Citric acid 0-1%;

Sodium carbonate 0-1%;

Sodium hydroxide 0-1.5%;

Preservative 0.1-3%;

Plasticizer 1-5%;

Fatty acid potassium salt 0-5%;

Flavor 0.05-2%;

Water balance.

Among them, preferably, the modified polyvinyl alcohol (modified PVA) accounts for 7-22% of the composition.

Among them, preferably, the modified polyvinyl alcohol (modified PVA) accounts for 7-15% of the composition.

Among them, preferably, the modified polyvinyl alcohol (modified PVA) accounts for 12-15% of the composition.

Wherein the polyvinylpyrrolidone (PVP) or modified polyvinylpyrrolidone mixture (modified PVP) comprises from 1 to 10% of the cleansing laundry composition.

Wherein the modified polyvinylpyrrolidone is prepared by the following preparation method:

Mix deionized water and PVP in a ratio of 4:1, stir, and heat the water bath to 80-85 ° C. After the PVP is completely dissolved, add the acrylic copolymer, then add sodium hydroxide to adjust the pH of the solution at 8-9. After the materials are uniformly mixed, the solid is precipitated at room temperature, and the solid is obtained as a modified polyvinylpyrrolidone by suction filtration;

The acrylic copolymer is acrylic acid or methacrylic acid;

The mass ratio of the acrylic copolymer to the PVP is 1: (3-6).

The number average molecular weight of the modified polyvinylpyrrolidone is from 1 to 200,000, and may also be from 30,000 to 80,000.

Wherein, the fatty alcohol carbon chain of the fatty alcohol sulfate potassium is C12-C18, and the fatty alcohol carbon chain of the fatty alcohol sodium sulfate is C12-C18.

Wherein the water is present in an amount of 6/11 or 1/2 of the composition.

Wherein the lauryl polyoxyethylene ether has an EO number of 3-9, preferably including lauryl polyoxyethylene ether-3 (AEO-3) and lauryl polyoxyethylene ether-7 (AEO-7), further preferably The weight ratio of lauryl polyoxyethylene ether-3 to lauryl polyoxyethylene ether-7 is (2-3): (3-2), and further preferably 1:1.

Wherein the plasticizer is selected from one or both of a unit alcohol or a polyol.

A laundry tablet for cleaning clothes made from the composition for cleaning clothes described above.

A method for preparing a laundry washing tablet comprises the following steps:

(1) First add the remaining amount of water and heat to 50 ° C;

(2) Put in PVA, modify PVP, and fully dissolve to no particles;

(3) adding potassium salt of fatty alcohol sulfate and sodium fatty acid sulfate, and stirring uniformly;

(4) The addition is lauryl alcohol ethoxylate and stirred and dissolved uniformly;

(5) Finally add fatty acid potassium salt, glycerin, citric acid, sodium hydroxide, preservative, and the essence is stirred and discharged uniformly;

(6) Pour the slurry obtained above into the trough of the coating foaming machine, according to different weight requirements, control the pulp to be foamed to 2-15 times its unbubble volume, and apply the foaming machine. The surface temperature is 70 ° C -135 ° C, the coating dryer roller speed is 20HZ-80HZ, the drying roller rotation speed is 2HZ-16HZ, and the sheet material is wound into a roll and sealed;

(7) The sheet material is spread on a microtome, and the parameters of the microtome are set according to the size requirements, and the laundry sheet sample is obtained.

Compared with the prior art, the cleaning composition for cleaning clothes according to the present invention has more detergency and better solubility, and the laundry is softer and the overall performance of the product is better.

Detailed ways

The building materials, preparation methods and applications thereof of the present invention are further described below in conjunction with some specific embodiments. The specific embodiments are intended to describe the invention in further detail, without limiting the scope of the invention.

The material sources for the implementation of the present invention are as follows:

PVA, modified PVA: Sinopec, model PVA8805, PVA-SF-I type, model 8805 used in Examples 1 and 3, model PVA-SF-I used in Example 2 and Example 4, The model used in Example 3 and Example 5 is PVA-SF-I type;

PVP: BASF, model K30, K90, model K30 used in Examples 1, 2 and 3, model K90 used in Example 4 and Example 5;

Acrylic acid: Sinopec, the content is over 99%;

Potassium lauryl sulfate: commercially available in an amount of more than 90%.

Sodium lauryl sulfate: Sinopec, with a content of more than 90%.

AEO-3: Commercially available, the content is over 99%.

AEO-7: Commercially available, the content is over 99%.

Citric acid: commercially available in an amount of over 99%.

Sodium carbonate: commercially available in an amount of over 90%.

Sodium hydroxide: commercially available, with a content of more than 85%.

Plasticizer: commercially available, no specific model, the content is more than 99%.

Fatty acid potassium salt: commercially available, the content is more than 90%.

Preservative: Commercially available.

Fragrance: Commercially available.

Example 1-5

Prepare the material according to the mass formula ratio described in Table 1, and then prepare the laundry piece as follows:

(1) first adding water and heating to 50 ° C;

(2) Injecting PVA and modified PVP, fully dissolving to no particles; wherein the modified PVP is prepared by the following preparation method: mixing deionized water and PVP in a ratio of 4:1, stirring, and heating to 80 in a water bath At -85 ° C, after the PVP is completely dissolved, the acrylic copolymer is added, and then the sodium hydroxide is added dropwise to adjust the pH of the solution to 8-9. After the materials are uniformly mixed, the solid is precipitated at room temperature, and the solid is modified by suction filtration. a polyvinylpyrrolidone; the acrylic copolymer is acrylic acid, the mass ratio of the acrylic copolymer to the PVP is 1:3;

(3) adding potassium lauryl sulfate, sodium lauryl sulfate, and stirring uniformly;

(4) Add AEO-3, and stir the AEO-7 to dissolve evenly;

(6) Pour the slurry obtained above into the trough of the coating foaming machine, according to different weight requirements, control The slurry is foamed to 2-15 times its volume before foaming, the surface temperature of the coating foaming machine is 70 °C-135 °C, the coating dryer roller speed is 20HZ-80HZ, and the drying roller The rotation speed is 2HZ-16HZ, and the sheet material is wound into a roll and sealed;

Table 1 Formulation Table of Examples and Comparative Examples

Comparative example 1

Compared with Example 1, the modified PVP was replaced with a common PVP, and the remaining steps were the same as the materials used to obtain a laundry sheet.

Comparative example 2

Compared with Example 2, potassium lauryl sulfate was not added, and the rest of the steps were the same as the materials used to obtain a laundry tablet.

Comparative example 3

Compared with Example 3, no plasticizer was added, and the remaining steps were the same as the materials used to obtain a laundry sheet.

Experimental Example 1: Softness test

The softness of Examples 1-5 and Comparative Examples 1-3 was tested by the following test methods, and the results are shown in Table 2. Test equipment: Jinan Chenchi Test Instrument Co., Ltd. ZRD-1000 paper softness tester.

experiment procedure

(1) Preparation of the sample: According to the number of layers specified by the product standard, the sample is taken from the sample taken, cut into a sample of 100 mm * 100 mm, and the vertical and horizontal directions and the front and back sides are separately marked. The dimensional deviation should be no more than ±0.5mm. After the samples are uncovered and layered, they are overlapped for softness testing.

(2) After the softness tester is turned on for 30 minutes, adjust the zero point of the instrument and adjust the slit width according to the product standard. Check the width error and parallelism.

(3) The sample is placed on the test bench of the instrument and symmetrical to the slit as much as possible. After the side is completely taken, the measured value is read from the display, and 10 data should be tested separately in the vertical and horizontal directions.

The results are expressed as the arithmetic mean of the results of the vertical and horizontal tests, expressed in Newtons, rounded to integers, and are shown in Table 2.

Table 2 Softness test results

	实施例1Example 1	实施例2Example 2	实施例3Example 3	实施例4Example 4	实施例5Example 5	对比例1Comparative example 1	对比例2Comparative example 2	对比例3Comparative example 3
柔软度/mNSoftness / mN	190190	183183	155155	9999	8282	289289	314314	373373

Experimental Example 2: Solubility test

Equipment / reagents: 5 beakers, size: 1L; glass rod; Tianfu PC2810 stopwatch; solvent: water

Test procedure: Take a 5*5CM size piece and place it in a 1L beaker containing 1L of water, place it naturally, press the stopwatch to start timing, observe the dissolution of the piece, and stir it with a glass rod. When the piece has been When the water is completely dissolved, press the stopwatch to stop the timing, and record the dissolution time of the sheet, which is listed in Table 3. It is completely soluble in water within 5 seconds and is considered excellent. It is completely dissolved in water within 5 to 60 seconds and is considered good. It is completely dissolved in water within 1-3 minutes and is considered qualified. It is completely dissolved in water after 3 minutes or later and is considered unqualified.

Table 3 Solubility test results

Experimental Example 3 Detergency Test

(1) Equipment / reagents

China Daily Chemical Industry Research Institute, RHLQIII vertical decontamination measuring machine; Changshu Shuangjie Instrument Testing Factory, JJ-500 electronic balance; National Surfactant Cleaning Product Standardization Center, JB-02 protein staining cloth; Tianjin Da Mao Chemical Reagent Factory, anhydrous calcium chloride AR; Tianjin Damao Chemical Reagent Factory, anhydrous magnesium chloride AR; volumetric flask 1L; solvent: water; alkyl benzene sulfonic acid; polyethoxylated fatty alcohol; Sodium alkyl sulfate; triethanolamine; trisodium citrate dihydrate; sodium hydroxide

(1) Test method

1 hard water preparation

16.70 g of calcium chloride and 20.37 g of magnesium chloride were weighed to prepare 10.0 L, which was 2500 mg/Kg of hard water. When used, taking 1.0L to 10.0L is 250mg/Kg of hard water.

2 standard laundry liquid preparation

Alkylbenzenesulfonic acid (in terms of actives) 8 parts, polyethoxylated fatty alcohol (average EO addition number is 9) 4 parts, 2 parts of sodium ethoxylated sodium sulfate (as active), 0.5 parts of triethanolamine, 0.6 parts of trisodium citrate dihydrate, water balance. Preparation method: the ingredients are sequentially added to a certain amount of water, stirred and dissolved (heated if necessary), and the pH of the solution is adjusted to 8.5-9.0 with sodium hydroxide to make up the water amount to 100%.

3 whiteness measurement

JB-1 stained cloth, JB-2 stained cloth, JB-3 stained cloth were cut into 6cm*6cm size, and each group was matched into six groups with similar average blackness. Each set of test pieces was used for the performance of one sample. test.

The test pieces were stacked in the same category, and the whiteness values before and after the washing were read one by one with a whiteness meter at 457 nm. The whiteness before washing is taken at two points on both sides of the test piece (the two points on each side should be center symmetric), and the whiteness value is measured. The average value of the four measurements is the pre-wash whiteness F1 of the test piece; After the whiteness, two points are taken on the front and back sides of the test piece (the two points on each side should be center-symmetric), and the whiteness value is measured. The average value of the four measurements is the whiteness F2 of the test piece after washing.

(3) Decontamination washing test

The washing test is carried out in a vertical decontamination machine. Before the measurement, the stirring impeller, the working tank and the decontamination bathtub are numbered and fixed to form a “working unit”, and the instrument is preheated to a stable period of 30 ° C ± 1 ° C for a period of time. In the test, 250mg/kg hard water (pre-heated to about 30 °C beforehand) is used to prepare the sample as 0.1% test solution, standard laundry liquid is made into 0.2% test solution, and each 1L is poured into the corresponding decontamination. In the cylinder, put the bathtub into the corresponding position and install the stirring impeller, and adjust the instrument to keep the washing test temperature at 30 °C ± 1 °C, ready for measurement.

Each test piece of the measured whiteness was placed in each bathtub, stirring was started, and the stirring speed was maintained at 120 r/min, and the washing process was continued for 20 minutes.

Pour the test pieces from each decontamination bathtub into the inner tub of the rinsing device, control the moisture, put it into the rinsing device, pour 1500mL of tap water, cover the lid, turn the handle on the lid, and rotate the inner barrel for about 30s. The inner tub should be fully rotated, but it is necessary to avoid overflow of the rinse water in the container due to excessive rotation. The rinsed water was drained, and 1500 mL of tap water was again added, and the second rinse was repeated. The rinsing water was drained, and the test piece was manually dehydrated for 15 s (rotation speed about 1800 r/min). The test piece after the completion of the rinsing was taken out, and after hanging at room temperature, it was dried, and the whiteness F2 was measured by the method of measuring the whiteness of the cloth before washing.

The whiteness difference (F2-F1) before and after washing of each test piece was calculated in a one-to-one correspondence, and the detergency was calculated for each set of test pieces. According to different types of dirty cloth test pieces, the decontamination value R and the decontamination ratio P of the detergent on various types of stains are determined, as follows.

(4) Calculation of stain removal value

The decontamination value (Ri) of a certain stain is calculated according to the formula Ri=∑(F2i-F1i)/n.

In the formula:

i - the i-th type of dirty cloth test piece;

F1i - spectral reflectance of the i-th type of stained test piece before washing, %;

F2i - Spectral reflectance of the i-th type of stained test piece after washing, %;

n - the effective content of each set of stained test pieces.

The result is retained to one decimal place.

(5) Calculation of stain removal ratio

The decontamination ratio (Pi) of the i-type soil laundry relative to the standard laundry liquid is calculated as Pi = R3i / R0i.

In the formula:

R0i - the decontamination value of the standard laundry detergent, %;

R3i - the decontamination value of the sample, %.

The result is retained to one decimal place.

(6) Determination of detergent detergency

When Pi≥1.0, the conclusion is that “the sample is equivalent to or better than the standard decontamination of the i-th stain. "Clothing liquid", referred to as "the i-th kind of dirty cloth is qualified for decontamination";

When Pi<1.0, the judgment conclusion is “the decontamination power of the sample to the i-th type of stain is inferior to the standard laundry liquid”, and the “ex-grain decontamination force of the i-th type is unqualified”.

Table 4 Example and Comparative Detergency Test Results

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformation made by using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, The same is included in the scope of patent protection of the present invention.

Claims

A cleaning garment composition characterized by the following weight percentage components:

Polyvinyl alcohol (PVA) or modified polyvinyl alcohol (modified PVA) 7-22%;

Polyvinylpyrrolidone (PVP) or modified polyvinylpyrrolidone mixture (modified PVP) 1-10%;

Fatty alcohol sulfate potassium 10-25%;

Fatty alcohol sodium sulfate 0-10%;

Lauryl alcohol polyoxyethylene ether 1-10%;

Citric acid 0-1%;

Sodium carbonate 0-1%;

Sodium hydroxide 0-1.5%;

Preservative 0.1-3%;

Plasticizer 1-5%;

Fatty acid potassium salt 0-5%;

Flavor 0.05-2%;

Water balance.
A cleaning garment composition according to claim 1 wherein:

The polyvinylpyrrolidone (PVP) or modified polyvinylpyrrolidone mixture (modified PVP) comprises from 1 to 10% of the cleansing laundry composition.
A cleaning garment composition according to claim 2, wherein:

The modified polyvinylpyrrolidone is produced by the following preparation method:

Mix deionized water and PVP in a ratio of 4:1, stir, and heat the water bath to 80-85 ° C. After the PVP is completely dissolved, add the acrylic copolymer, then add sodium hydroxide to adjust the pH of the solution at 8-9. After the materials are uniformly mixed, the solid is precipitated at room temperature, and the solid is obtained as a modified polyvinylpyrrolidone by suction filtration;

The acrylic copolymer is acrylic acid or methacrylic acid;

The mass ratio of the acrylic copolymer to the PVP is 1: (3-6).
A cleaning garment composition according to claim 3, wherein:

The modified polyvinylpyrrolidone has a number average molecular weight of from 1 to 200,000, and may also be from 30,000 to 80,000.
A cleaning garment composition according to claim 4, wherein:

The fatty alcohol carbon chain of the fatty alcohol sulfate potassium is C12-C18, and the fatty alcohol carbon chain of the fatty alcohol sodium sulfate is C12-C18.
A cleaning garment composition according to claim 5, wherein:

The water is present in an amount of 6/11 or 1/2 of the composition.
A cleaning garment composition according to claim 6 wherein:

The lauric alcohol polyoxyethylene ether has an EO number of 3-9.
A cleaning garment composition according to claim 7 wherein:

The plasticizer is selected from one or both of a unit alcohol or a polyol.
A laundry sheet for cleaning clothes, which is produced by the composition for cleaning clothes according to any one of claims 1-8.
A method of preparing a laundry washing tablet according to claim 9, comprising the steps of:

(1) First add the remaining amount of water and heat to 50 ° C;

(2) Put in PVA, modify PVP, and fully dissolve to no particles;

(3) adding potassium salt of fatty alcohol sulfate and sodium fatty acid sulfate, and stirring uniformly;

(4) The addition is lauryl alcohol ethoxylate and stirred and dissolved uniformly;

(5) Finally add fatty acid potassium salt, glycerin, citric acid, sodium hydroxide, preservative, and the essence is stirred and discharged uniformly;

(6) Pour the slurry obtained above into the trough of the coating foaming machine, according to different weight requirements, control the pulp to be foamed to 2-15 times its unbubble volume, and apply the foaming machine. The surface temperature is 70 ° C -135 ° C, the coating dryer roller speed is 20HZ-80HZ, the drying roller rotation speed is 2HZ-16HZ, and the sheet material is wound into a roll and sealed;

(7) The sheet material is spread on a microtome, and the parameters of the microtome are set according to the size requirements, and the laundry sheet sample is obtained.