JPH01113500A - Bleaching agent composition - Google Patents

Abstract

PURPOSE:To obtain the title composition which is free from color contamination and misuse, has a beautiful appearance, and therefore has an excellent commodity value, by mixing a granular coloring composition consisting mainly of a specified water-soluble dye and a water-soluble binder with an oxygen-base bleaching agent. CONSTITUTION:A granular coloring composition (A) having a grain size of 8-60mesh is obtained by mixing its principal constituents comprising 0.0005-5wt.% water-soluble dye (a), such as C.I. Acid Blue 9, which will fade through decomposition in an aqueous solution of an oxygen-base bleaching agent, and 1-20wt.% water-soluble binder (b) which comprises CMC, PVA, a condensate of sodium naphthalenesulfonate with formaldehyde, or a sorbitan ester of an 8-22C fatty acid with, as required, 30-98wt.% base material (c) comprising various water-soluble salts, an extender pigment, a white pigment, etc., and additives (d), such as an enzyme, a chelating agent, a mildewproofing agent, and a perfume, so as to provide a total of 100wt.%, and granulating this mixture. 0.5-5wt.% component A is then mixed with an oxygen-base bleaching agent (B), such as Na2C2O6 or NaBO3, and an inorganic builder, an anionic or nonionic surface active agent, an enzyme, a perfume, etc., (C) as required.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a novel bleach composition, and more particularly to an oxygen bleach composition containing a granular colored composition.

(Prior art and its problems) Conventionally, chlorine bleach and oxygen bleach have been known as bleaching agents, but oxygen bleach has been widely used in recent years because the former has a chlorine odor. It's starting to look like this.

These oxygen bleaches are white granules whose main ingredients are bleaching agents such as sodium percarbonate and sodium perborate, and are used to improve the product image of these oxygen bleaches and to impart a bluing effect to white clothing. There is one product on the market in which a small amount of a blue granular coloring composition is added to white bleach granules.

If this blue-colored granular additive is not added to the white bleach granule, the bleach granule is simply a white odorless powder, which contains sugar commonly used in households.
In some cases, it is difficult to distinguish between salt, potato starch, wheat flour, detergent, etc.

Furthermore, in households with infants and children, it is easy to mistake white bleach for food, and there is a risk of accidentally putting it in the mouth. In such a case, if a small amount of colored granules are added, it can be easily distinguished and accidents can be prevented.

The present inventors previously disclosed in Japanese Patent Publication No. 56-35718 a granular additive for bleaching agents comprising a blue pigment and a surfactant having an aromatic sulfonic acid group or an alkali metal base thereof, and a bleaching agent containing the same. proposed a composition. However, when washing and bleaching fabrics using a bleach composition containing such a small amount of colored granules, the blue pigment stains the fabrics depending on the method of use, resulting in a blue color on the fabrics after drying. There was a considerable risk of spotting.

In addition, in general, most of the woven fabrics to be bleached are plain white, and they also have the disadvantage that if even a small amount of blue pigment is dyed onto the fabric, staining becomes more noticeable. In particular, if you soak clothing in a small amount of water in a wash basin, sprinkle bleach containing colored granules on top, and leave it as is without stirring, no matter what kind of pigment you use, it will affect the texture of the fabric. Pigment particles penetrated deeply into the stitches and adhered, and even after thorough washing with water, spot-like staining was observed.

(Means for Solving the Problems) As a result of intensive research in order to solve the above-mentioned drawbacks, the present inventor has developed a granular coloring composition using a specific dye and oxygen bleach granules in a solid state. When mixed and stored, a single granular coloring composition retains its bright color for a long period of time, but when bleaching clothing, etc., the granular coloring composition dissolves in the aqueous bleach solution and further The present invention was completed by discovering that the dye in the granular coloring composition immediately decomposes and fades due to the oxidizing action of the bleaching agent, thereby eliminating color staining on woven fabrics.

That is, the present invention is a bleach composition comprising an oxygen bleach and a granular coloring composition containing as main components a water-soluble dye that decomposes and fades in an aqueous oxygen bleach solution and a water-soluble binder.

(Function) The most important finding that led to the completion of the present invention is that, among conventionally known dyes, granular coloring containing triphenylmethane dyes, xanthine dyes, or dyes with other specific structures The composition dissolves uniformly in the oxygen bleach aqueous solution and easily decomposes and decolors these dyes when they adhere to the fibers of clothing, preventing contamination of woven fabrics, but the oxygen bleach granules and the above When the granular coloring composition is uniformly mixed in a solid state, no decomposition reaction occurs because there is no water.
This is a technical finding that maintains a stable colored state for a long period of time.

In contrast, when conventional pigments are used, when added to water, the pigment concentration locally increases in the bleach cleaning solution, and pigments are insoluble and have less oxidation resistance than dyes. Because of this, the pigment remains as it is, and the pigment particles sometimes penetrate between the fibers and cause physical dyeing. On the other hand, when a specific water-soluble dye is used in the present invention, the dye dissolves and diffuses into the bleach aqueous solution and has an oxide film color property, so the dye is easily decolorized by the bleach, and the dye is As with any technology, the risk of contamination of bleached fabrics can be eliminated.

(Preferred Embodiments) Next, the present invention will be described in more detail by citing preferred embodiments.

As the dye used in the present invention, any dye can be used as long as it decomposes and fades in an aqueous solution of an oxygen bleach.

The dye that can be suitably used in the present invention is prepared by preparing a 1% by weight aqueous solution of sodium percarbonate, dissolving the dye therein to a concentration of 0.1% by weight, and observing the state of fading while stirring at 25°C. It means that the hue of the dye is hardly perceivable after about 12 hours of observation. On the other hand, dyes whose hue can be clearly perceived even after about 12 hours stain various woven fabrics to be bleached during the bleaching process.

For example, preferred dyes include C01, Acid Violet 15.43.49, C,
1, Acid Blue 1.7.9.15.22.83.9
0,93.100.103.104,G,1. Acid Green 3.9.16, C,1, Basic Violet 1.3.14, C,1, Basic Blue 1.5.7
．． 19.26, C,1, Basic Green 1.4, C,1, Mordant Violet 1, c,r, Mordant Blue 1.29.47, C,1, Triphenylmethane type such as Direct Blue 41 Water-soluble dye; (:, 1. Acid Red 51.52.87.92.9
4, C, 1, Basic Red 1, (:, [, Basic Violet 10, c, r, xanthine dyes such as Mordan Red 27; (1:, 1. Acid Blue 4, C, 1, Acid Violet 43, (:, 1. Mordant Blue 13, etc.).These dyes can be used alone or in combination of two or more.

The amount of these dyes used is -0.0005% by weight in 100 parts by weight of the granular coloring composition used in the present invention.
A good range is 5% by weight, preferably 0.00% by weight.
A preferable range is 1fi amount % to 0.5 weight %. If the amount of dye is too large, the coloring properties of the dye will be poor and clear colors will not be obtained.

The water-soluble binder used in the present invention not only acts as a protective layer for the dye in an oxidizing atmosphere when added to an oxygen bleach, but also serves as a binder and a fluidizing agent when producing a granular coloring composition. It also functions as a dispersant, etc.

The water-soluble binder used in the present invention may be any polymer or other relatively high molecular weight material that is water-soluble and has adhesive properties when it contains water, such as methylcellulose. , carboxymethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, sodium alginate, guar gum, gum arabic, gelatin, casein, collagen, chitin,
Water-soluble polymers such as chitosan, polyvinyl alcohol, sodium polyacrylate, polyethylene oxide, polyoxyethylene oxypropylene copolymers, polyvinylpyrrolidone, etc., propylated naphthalene sulfonates,
Naphthalene sulfonate surfactants such as butylated naphthalene sulfonates, formaldehyde condensates of naphthalene sulfonates, linear alkylbenzene sulfonates having 8 to 22 carbon atoms, α-olefin sulfonates having 8 to 22 carbon atoms, polyoxylic acids having 8 to 22 carbon atoms Ethylene alkyl ether sulfate, carbon number 8 to 22
anionic surfactants such as alkyl phosphate ester salts, polyoxyethylene alkyl ethers having 8 to 22 carbon atoms, polyoxyethylene alkyl phenyl ethers having 8 to 22 carbon atoms, sorbitan fatty acid esters having 8 to 22 carbon atoms, glycerin Examples include nonionic surfactants such as fatty acid esters. These water-soluble polymers or surfactants may be used alone or in combination, and one or two of them may be used alone or in combination.
More than one species can be used in combination.

The amount of these water-soluble binders used is 10% of the granular coloring composition.
The content is preferably 0.1% to 20% by weight, more preferably 0.5% to 10% by weight based on 0 parts by weight.

In the present invention, it is preferable to use various water-soluble salts as bases, extender pigments, white pigments, etc. in addition to the two components listed in L. The main purposes of these bases are to moderately reduce the dye concentration in the granular coloring composition of the present invention to improve the coloring properties of the dye, and to make the water-soluble binder exhibit better performance. , and other bleaching agents. For example, preferred examples include sodium tripolyphosphate, sodium carbonate, sodium sulfate, zeolite, talc, and titanium oxide. These bases can be used preferably in an amount of about 30 to 95% by weight in 100 parts by weight of the granular coloring composition of the present invention.

The main components of the granular coloring composition used in the present invention are as described above, but chromatic pigments and other dyes may be used in combination to the extent that staining of clothing is not observed. Furthermore, various conventionally known additives can be added to the extent that they do not impede the objectives and effects of the present invention. These additives include enzymes, chelating agents, fungicides, fragrances, and the like.

Next, to explain the method for manufacturing the above granular coloring composition, each of the above components is mixed uniformly, an amount of liquid, preferably water, is added to the extent that the mixture has plasticity, and then normal granulation is carried out. The powder mixture is granulated to an appropriate degree by a method such as crushing granulation, crushing granulation, extrusion granulation, rotary granulation, or spray granulation, or by a fluidized bed granulation method in which a water-soluble binder solution is sprayed onto the powder mixture. It is grained. The preferred particle size varies depending on the shape and particle size of the bleach additive, but is usually 8 to 6.
A range of about 0 meshes, preferably about 12 to 28 meshes, is most common.

The granular coloring composition obtained as described above is added to various oxygen-based bleaches, but any oxygen-based bleach that dissolves in water and releases hydrogen peroxide can be used. For example, one or more hydrogen peroxide adducts such as percarbonates, perborates and birophosphates, citrates, sodium sulfate, urea, sodium silicate, etc. are preferred. Particularly preferred are sodium percarbonate and sodium perborate, both of which are commercially available and can be used in the present invention alone or as a mixture. Preferably, it is in the form of particles, for example, granulated.

The proportion of the granular coloring composition to be added varies depending on the dye concentration, coloring power, etc. of the granular coloring composition, but basically, the proportion of the granular coloring composition in the bleach composition is at least as high as can be easily detected with the naked eye. For example, as a granular coloring composition, 0.5
It is added in a proportion of 5% by weight. The addition method may be simple mixing.

In addition to the above-mentioned granular coloring composition and oxygen bleach, the bleach composition of the present invention may further contain various components as required.

In this case, the composition of the present invention can be prepared as a bleaching detergent by blending components known as bleaching detergents such as inorganic builders, anionic/nonionic surfactants, enzymes, fragrances, and fluorescent agents.

Here, examples of the inorganic builder include sodium sulfate, sodium silicate, sodium tripolyphosphate, and the like. Further, as anionic surfactants, sulfonates and sulfates having an alkyl group having about 8 to 22 carbon atoms,
Examples include alkylbenzene sulfonates having about 9 to 15 alkyl groups, α-olefin sulfonates having about 8 to 22 carbon atoms, and fatty acid soaps having about 10 to 22 carbon atoms. Preferred salts are alkali metal salts, particularly preferred are sodium salts. Nonionic surfactants include ethylene oxide condensates of alkylphenols having a linear or branched alkyl group having about 6 to 12 carbon atoms and condensing 5 to 25 moles of ethylene oxide to 1 mole of alkylphenol; 5 to 30 ethylene oxide to 1 mole of linear or branched aliphatic alcohol having about 8 to 22 carbon atoms
ethylene oxide condensate of aliphatic alcohol condensed with moles, propylene oxide condensed with propylene glycol,
"Pluronic" obtained by further condensing ethylene oxide
nonionic surfactants such as those with the trade name of , mono- or jetanolamides of fatty acids with an acyl moiety having about 8 to 18 carbon atoms, an alkyl group with about 8 to 24 carbon atoms, and a methyl group and/or an ethyl group. Examples include amine oxides.

In addition, enzymes that can be incorporated into the bleach composition of the present invention include:
Hydrolytic enzymes that promote the addition or removal of water; oxidoreductases that promote redox; transferases that transfer groups from one molecule to another, altering the stain and promoting its removal;
Gauze and lyase can be used to break down intermolecular bonds and decompose dirt to promote removal, and enzymes can be used to isomerize molecules and chemically alter dirt to promote removal. Among these, hydrolytic Enzymes are preferred, particularly proteases among hydrolytic enzymes. Specific examples of proteases include serine protease, pepsin, trypsin, chymotrypsin, collagenase, keratinase, esterase, subtilisin, papain, carboxypeptidase A and B, aminopeptidase, and the like. Preferred proteases are serine proteases. These are, for example, "Alcalase": Novo Industries "Esperase": Novo Industries "Viroplase": Nagase Sangyo "Maxatase": Gist Procades rALP
-2J: Meiji Seika ■ "Sperase": Easily available as a commercial product from Pfizer Inc., etc. When blending an enzyme, the amount blended into the bleach composition is preferably in the range of 0.01 to 5% by weight.

In addition, when the bleach composition of the present invention is prepared as a bleach cleaning agent, the peroxide is 1 to 95% by weight of the entire bleach cleaning agent.
It is preferable to mix them so that

(Effect) The bleach composition of the present invention is obtained by adding the specific granular colored composition to a granular or powdered oxygen bleach, and the granular colored composition is dotted into the white bleaching agent. Since the products are mixed, it is visually beautiful and has good commercial value, and there is no possibility of misuse with other products that are similar in appearance, such as sugar, salt, detergent, etc.

Furthermore, during the actual bleaching process, dyes that are dissolved in water are easily bleached by bleaching agents, so that no spot staining occurs on clothing.

Hereinafter, the present invention will be explained in more detail with reference to Reference Examples, Examples, and Comparative Examples. In the text, parts or percentages are based on weight unless otherwise specified.

Reference Example I C.1, 91.0 parts of Acid Blue, 40 parts of a formaldehyde condensate of sodium naphthalene sulfonate, and 959 parts of sodium sulfate were uniformly blended using a high-speed mixer. After the mixture was stirred and heated to 60° C. using a mixer, 60 parts of water was added and kneaded for 30 minutes, and the mixture was continuously taken out and crushed using a crusher, followed by fluidized bed drying. The mixture was then sieved to obtain 450 parts of a 12 to 32 mesh blue granular colored composition.

Reference Examples 2 to 22 and Comparative Reference Examples 1 to 6 Various granular colored compositions were prepared in the same manner as in Reference Example 1 except that the formulations shown in Table 1 below were used.

(Left below) Chi 1 -1-0-ban --tan 2C・■・AB9 N5FA Na・so・8.5
Department. Parts 940 parts 20 parts 3, 1. Eight B9
To N5FA Na25o 40.5 parts.

Part 940 parts 20 parts C, 1, AG9 NS
F8 Naz (: Oa., 5 parts, . parts
950R,” Part 6C, 1, BVI N5FA N
azSOao, 5 copies 40 copies 960 copies 7C, 1, BBI N5FA NazS040.
5 copies 40 copies 960 copies 8G, 1. BBI9 N5FA Na, 5040
．． 5 copies 40 copies 960 copies 9C, 1BG4 N5FA NazS040.5 copies 40 copies 960 copies loC, 1, MVI N5FA NazSo.

0.5 parts 40 parts 960 partsc, 1. 889 N5FA TPPA
llo, 5 parts 40 parts 960 parts Note) Additionally, use 10 parts of ultramarine.

le mosquito reference side In the above table, each symbol represents the following meaning.

to 8 Niazit' Blue- NSF 8; Formaldehyde condensate of sodium naphthalene sulfonate Av; To acid violet G Niazid green Bv: Basic violet BB: Basic blue 8G, basic green Mv; Mordant violet Tl1ll 8; Sodium tripolyphosphate 8 R: Acidlet' Liver: Basic Red MR-Mordan Red PEG, polyethylene glycol PAANa; 20% sodium polyacrylate aqueous solution p
vp, polyvinylpyrrolidone DBSNa; sodium dodecylbenzenesulfonate M
B: Mordan Blue DB: Direct Blue Examples 1 to 22 and Comparative Examples! 0.5 parts of each of the granular coloring compositions obtained in Reference Examples 1 to 22 and Comparative Reference Examples 1 to 6 and 5 parts of sodium percarbonate were lightly blended in a closed container to prepare each of the present invention and comparative examples. A bleach composition was prepared.

Dissolve this in 1,000 parts of water, and add cotton cloth (7 parts
10cm), leave it for one night, then take it out the next day, 5
When the dyes or pigments were visually tested for dyeability after washing with water and drying for a minute, no dyeability was observed on cotton cloth in the case of the present invention. On the other hand, in all of the comparative examples, spotty staining was observed throughout the cotton fabric.

Similar results were obtained when vinylon, rayon, and acetate cloth were used instead of cotton cloth.

Further, even when the above blend was stored in a glass bottle for a long period of time, no fading of the color of the granular coloring composition was observed.

In each of the above cases, similar results were obtained even when sodium perborate was used in place of sodium percarbonate.

Patent applicant: Lion Corporation and 1 other person Agent: Patent Attorney Yoshi 1) Hiro Katsu.

Tewa υne ``■ Seiji (spontaneous) November 30, 1986

Claims (3)

[Claims] (1) Oxygen bleach A bleach composition comprising a granular coloring composition containing as main components a water-soluble dye that decomposes and fades in an aqueous solution and a water-soluble binder, and an oxygen bleach. (2) The bleach composition according to claim (1), wherein the granular coloring composition further contains a base. (3) The bleach composition according to claim (1), wherein the oxygen bleach is a granular material of sodium percarbonate and/or sodium perborate.