JPS61213300A - Solid washing soap - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for handwashing textile products.
) Improved solid laundry soap (laun)
dry bar).

BACKGROUND OF THE INVENTION Solid laundry soaps used for hand-washing textile products can be washed in a washing machine or in a 2-bar wash (bo
Unlike the disintegrating tablet fluid bed or detergent soaps used in wl vam hlng), it has good strength to ensure that its integral structure is retained during post-manufacturing handling, transportation and use. There must be.

These bar soaps have a good reputation for being economical for convenience, and can be used by rubbing directly onto the surface of textile products, allowing for hand-washing where only a small amount of water is used during the washing process. Particularly suitable for use in places.

British Patent No. 2,083.490 Publication BA11tIII
Bar laundry soaps commonly used in the confectionery industry, such as those described in IF, typically contain from about 7 to about 45 parts by weight of detergent actives, from about 5 to about 60 parts by weight of detergent builder materials, and a plurality of optional ingredients. It contains ingredients such as abrasives, fillers, perfumes, colorants, and alkali salts. These are used under conditions of cold water or lukewarm water.

It has also been proposed to incorporate bleach into solid laundry soaps in order to improve their cleaning performance, but it is difficult to say that they have been successful yet.

German Patent Application No. 1.086,214 discloses a built-up bar detergent containing sodium perborate.

Bar soap used for hand-washing textile products is different from disintegrating tablet detergent that is used for one washing operation, and is used repeatedly. Therefore, when adding sodium perborate to bar soap, it is necessary to A major problem is that the bleach must remain stable not only in the soap during storage, but also during use (ie, after the first use and each subsequent use, as well as after contact with water).

15-45 weight fraction of anionic detergent active substance and 5-601
The combination of a small amount of silica tR-f magnesium (M1810s) and sodium perborate into a solid laundry soap composition containing detergent builder substances from Ltts provides excellent f'L7j cleaning performance and high stability during storage and use before use. It has now been discovered that an improved solid laundry soap for use in hand washing of textile products can be obtained having the following properties.

The amount of magnesium silicate depends on the amount of perborate in the bar soap, but is typically less than 0.5 weight parts to 50 L5IIU, preferably about 1 to 2 weight parts of magnesium silicate. ] to provide the required stability of the perborous El salt present in an axial amount of 1 fi'A.

Stabilizers can be added to the bar soap mix as magnesium silicate during manufacture, or can be added in situ (in 5 itu), for example from magnesium sulfate and sodium silicate.
) can also be generated.

Sodium perborate is its tetrahydrate salt (NaBOs・as o
x・3H2O) or its monohydrate (Na Boy m
H, O, ) forms can be used, with the latter being preferred. The main advantage of sodium perborate hydrate is that it is compatible with the equivalent N9jJdX standard (available b
aai*) and 7 g@n boric acid) It is more effective than IJum tetrahydrate in small amounts. A preferred range is approximately 6.5 to 15 weight factors.
Wt sodium hydrate salt and sodium perborate tetrahydrate in a range of about 10-22X.

Next, the 4IJ11 bleach-containing bar 15v for hand washing of textile products provided by the present invention: 1
5-45% by weight of anionic detergent active substance and 5-60"j
L amount of detergent Pilgoo substance and about 5 to 30 amounts of perboric acid) IJum and 0.5 to 2.5I! It consists of magnesium silicate in a quantity ratio below.

Satisfactory solid stones of this composition are, for example, 3.5~
about 15ij1%, preferably 6-11. It can be manufactured to cover a wide range of moisture content, including 7%.

Further improvements can be made by incorporating heavy metal ion sequestrants into the bar soap, such as ethylenediaminetetraacetate, ethylenediaminetetra(methylenephosphonate), diethylenetriane penta(methylenephosphonate) and nitrilotriacetate.

These electrocontaining ion sealants can be used in the form of their acids or water-soluble salts, especially alkali metal salts (eg, sodium salts).

These sequestering agents are used together with magnesium silicate in small amounts, from about 0.05 to up to about 0.7 weight percent, preferably from about 0.1 to 0.5 weight percent, of pure white soap compositions. be done. Suitable sequestering agents are ethylenediaminetetraacetate (gDTA) and nitrilotriacetate (NTA).

The detergent active ingredients and builder ingredients that can be used herein are those conventionally used in the art.

For these ingredients, see Sahwartz.
“Surface Active Agents” J by zJ and 碩+)-(P@rry)
*Described in Volume 1 (Interscience, 195B) K.

The detergent actives that can be used belong to the two general categories of anionic actives: nonionic, amphoteric.

It can also be used in mixtures with betaine-type and zwitterionic active substances.

Suitable detergent active ingredients are straight-chain or branched alkyl (
Cs-+s) Benzene Sulfone 11! 17 from salt
They may be used all alone or in small amounts mixed with other active ingredients, preferably alkylbenzenesulfonic acids. Detergent actives that can be used in combination with alkylbenzene sulfonates include alkanesulfonates, alcohol sulfates, olefin sulfonates, monocarzenates, ethoxylated alcohols and fatty acid ester sulfonates.

Builder components include water bath salts (e.g. pentasodium triphosphate, sodium pyrophosphorus #R and sodium orthophosphate); water-soluble carbonates (e.g. sodium carbonate); [41! Builders (eg, sodium nitrilotriacetate, trisodium carboxymethyloxysuccinate, sodium oxydisuccinate, and sodium sulfonated long-chain monocarboxylate).

A detergent builder suitable for use in the soap bar of the present invention is a pilgy mixture of water-soluble carbonates. Examples of suitable pilgoo mixtures of this type are “sodium triphosphate/sodium carbonate: tetrasodium pyrophosphate/sodium carbonate; and mixtures of sodium triphosphate/tetrasodium pyrophosphate/sodium carbonate.

Fillers such as calcite, cypress clay (eg, kaolin and bentonite), and sodium chloride are non-essential ingredients, the choice of which is taken with volume and economic considerations in mind.

Other ingredients such as silicates (e.g. alkaline sodium silicate): starch, sodium calzeximityl cellulose 1 colorants, fluorescent agents, opacifiers.

Fragrances including a boxcide and a deodorizing agent can also be added as desired.

The solid laundry soap of the present invention contains anionic active acids (anion
ic-active weld) (e.g. alkylbenzene sulfonic acid), neutralize the alkali, e.g. with sodium carbonate, add all or most of the water of the composition during or after neutralization, then add excess builder and The filler is mixed with a JJ cutting rZJ blade mixer to create a dough, and in the final mixing process sodium perborate, magnesium silicate (or magnesium sulfate + sodium silicate) and other small amounts are added. It can be produced by a method consisting of adding the ingredients, said method being preferred.

Heat is generally generated during neutralization and hydration, as well as during high-velocity shearing, but if insufficient heat is added to bring the temperature to about
It can be adjusted to -65°C.

Since the temperature required for successful incorporation of perborate is critical, the temperature of the dough during perborate addition should not exceed 50 tl and preferably be below 45°C. C may also be used by adding the remaining water to adjust the moisture content.

During this final mixing operation, the dough is passed through a CR-2 mill and then extruded.

(Left below) Example 1-W A solid laundry soap having the following composition was produced: Composition (weight 1) IIIIIIVA Sodium Tetrasodium Pyrophosphate 6.0 6.0
6゜0 6.0 6.0 Sodium triphosphate
2.0 2.0 2.0 2.0 2. Q
Sodium carbonate 18.0 18.0 1B
,0 18.0 18.0 Calcite
19.01 14.01 22.41 19.01 1
9.86 Kaori 7 - -
− − 9.0 bentonite −
---2,0 Sodium sulfate 4.5 4
．． 5 4.6 4.5 4.5 Fragrance
0.3 0.3 0.3 G, 3 0.3 Fluorescent agent
0.24 0.24 G, 24
0.24 0.24 Titanium double -
---0.15 water 6.5
6.5 6.5 6.5 6.5 Magnesium silicate (El) TA2.0 2.0
2.0 - - Magnesium silicate -
--2,0-Deactivating agent organic substance 0.45
0.45 0.45 0.45 0.45 ■,
2, Melon and 2 are compositions of uninvented solid laundry soaps, and comparative solid laundry soap compositions in which people do not use bleach.

4: Invention solid laundry stone - fillers 1, 11, Ill and I used an extrusion block, but it did not cause any problems during processing. Furthermore, a penetrometer (PSN) was carried out immediately after extrusion.
As a result of the slrom・t@r) measurement, it was found that bar soap tends to harden when added with excess borium rR salt.

A 37 7
．． 5+, n, at and IV 3t1
7.1 The storage stability of the bleaching ingredients, i.e., per1llIIR sodium tetrahydrate and monohydrate, respectively
28°C/70% RH> and 37°C/relatively stable even when stored, and uninvented bar soap 1. I
T, III, and ■ were found to be clearly superior to bar soap 1i11A regardless of the presence or absence of EDTA.When placed in a polyethylene bag, the appearance of bar soap was maintained, but the stability did not show the same. .

Furthermore, the loss of bleaching agent during use was investigated for the solid stone M1 (10% perborate tetrahydrate) and the solid stone +@111 (251 perboric acid monohydrate).

Analyze bar soap at 4fei and 37℃/70R
It was left in a soap dish of H overnight. This wash? 1/Leave it (Save R)
Repeat the cycle and reanalyze these bar soaps. The results are shown in Table 1 below: Table 1 Stability of raw white thread during use (initial value set to toots) Initial 100 100 Initial storage t! 89.2 87.2 After the second storage 75.8 83.8 Performance evaluation of nine soaps using natural soils: The action of bar soap I, bleachable (blsaehabl
・) Comparison was made with bar soap A regarding various types of protein stains.

Performance after bowl washing: The effect of applying bar soap directly to soiled areas was examined in the absence of sunlight. Only the resulting bleaching action could be distinguished. From these results it is clear that perborates are more effective against most of the S-stains investigated. Nevertheless, as shown in Table 2 below, the solid laundry soap I of the present invention achieved a significant improvement in stain removal.

Line dry scissors were made at Atlas Φ Electric Gino 9 Chair Company (registered trademark) of Chicago, Neu.

The results are shown in Table 3 below.

Example V After a day + S whitening, the performance of the bar soap 1 of the present invention rich in 10-sodium perborate tetrahydrate and the comparative soap A was compared.

The results are shown in Table 4.

Table 4 Example■ The following 1g5 table shows q!
Table 6 below shows the perborate stability of the perborate-stable laundry soaps in solid laundry soaps containing lO% sodium perborate tetrahydrate with 2% magnesium silicate. Ding.

Table 6 01α3 lα3 1α3 1 1(12) l(12) 1(12)7
l(12) 1(12) l(12)24
9.9 1α1 l(12)2B
--- 35191aO1 (12) 50 9.6 &9 1al
? S&! ! 118 1(
LIZoo &4 9L7
1α1 Example ■ Table 7 below shows that 10% sodium perborate tetrahydrate was added to 37%
Figure 2 shows perborate stability in solid laundry soap containing in situ generated magnesium silicate (magnesium sulfate + sodium silicate).

The basic solid laundry soap compositions used in Examples ① to ① of Table 7 are as follows.

Ingredient Weight 5 Sodium DOB8 2 & GO Sodium Carbonate 1 (LOG Tetrasodium Pyrophosphorus IILOG Sodium Sulfate
486 Calcium carbonate 3L738
0MO2,00 Fluorescent agent a247 Rexonil blue (LO5 titanium dioxide
0.15 fragrance α
3゜Water as.

Claims (12)

[Claims] (1) 15-45% by weight of anionic detergent actives and 5-45% by weight of anionic detergent actives;
Containing a bleaching agent for use in hand washing textile products, characterized in that it consists of 60% by weight of detergent builder substances, about 5-30% by weight of sodium perborate and not more than 0.5-2.5% by weight of magnesium silicate. Solid laundry soap. (2) The soap according to claim 1, containing 1 to 2% by weight of magnesium silicate. (3) The soap according to claim 1 or 2, wherein the sodium perborate is sodium perborate monohydrate. (4) A soap according to claim 1, 2 or 3, wherein the anionic detergent active is a straight or branched alkylbenzene sulfonate having from 8 to 16 carbon atoms in the alkyl chain. (5) The soap according to any one of claims 1 to 4, wherein the detergent builder substance is a mixture of bath carbonate builders. (6) Approximately 0 heavy metal ion sequestering agent is added to the total solid soap composition.
．． A soap according to any one of claims 1 to 5 containing in an amount of 0.05 to 0.7% by weight. (7) The amount of heavy metal ion sequestering agent is 0.1 to 0.5% by weight
The soap according to claim 6. (8) The heavy metal ion sequestering agent is ethylenediaminetetraacetate (EDTA) or nitrilotriacetate (
7. The soap according to claim 6 or 7, which is NTA). (9) Neutralizing the anionically active acid with an alkali, adding all or most of the composition water during or after neutralization, and then mixing the detergent builder substance to create a dough, to which the final mixture is added. The process is characterized by including the step of adding sodium perborate and magnesium silicate while keeping the temperature of the dough from exceeding 50°C, and finally passing the dough through a roller mill to form a bar soap. A method for producing a bleach-containing solid laundry soap according to any one of claims 1 to 8. (10) The method according to claim 9, in which magnesium silicate is added in the form of magnesium sulfate and sodium silicate and reacted in situ during the process. (11) The method according to claim 9 or 10, wherein the temperature of the dough during addition of perborate is less than 45°C. (12) The method according to claim 9, 10 or 11, wherein the alkali used in the neutralization reaction is sodium carbonate.