JP2814142B2 - Bleaching detergent containing polyvinyl alcohol film - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a bleaching detergent containing a bleaching component.

2. Description of the Related Art Compared with chlorine bleach, oxygen bleach such as sodium percarbonate and sodium perborate has advantages such as excellent color safety for color and patterned clothing and environmental safety. It has been added to bleach detergents as an agent. In addition, since the effect of the oxygen bleach has a temperature dependency, it has an aspect that the effect is not sufficiently exhibited when washing clothes with low-temperature water. An agent has been developed, and by using it in combination, it has become possible for oxygen-based bleaches to exert their bleaching effects sufficiently even at low temperatures.

However, the present inventors have studied the use of an oxygen-based bleaching base material and a combination of an oxygen-based bleaching agent and a bleaching activator. In such a case, it was found that color deterioration may occur even in a short time, and particularly in a combined system using an oxygen bleaching agent and a bleaching activator, color safety was found to be significantly deteriorated.

Problems to be Solved by the Invention The present invention relates to a method for improving color safety, in which a bleaching detergent containing an oxygen-based bleaching substrate (bleaching component) is prevented from fading even when directly applied to a cloth to be dyed at the time of washing. It provides an excellent bleaching detergent.

Configuration of the Invention The polyvinyl alcohol of the present invention (hereinafter referred to as PVA)
The bleaching detergent containing a film is a bleaching detergent composition in which a bleaching component containing an oxygen-based bleaching agent or an oxygen-based bleaching agent and a bleaching activator and a cleaning component are powder-mixed, so that the surface becomes uneven. It is packaged with a partially saponified PVA film that has been embossed.

 Hereinafter, the present invention will be described in more detail.

In the present invention, a partially saponified polyvinyl alcohol film is used, the film thickness is 10 to 150 μm, and the polymerization degree is 500 to
3000, a partially saponified polyvinyl alcohol having a saponification degree of 80 to 98% is preferable, and particularly, a thickness of 20 to 40 μm and a molecular weight of 1000.
Those having 0 to 200,000 are preferred. As the partially saponified PVA film, a film embossed so that the surface becomes uneven is used.

In the bleaching detergent containing a PVA film of the present invention, the bleaching detergent composition is filled and packaged in the PVA film as described above.

The bleaching detergent composition comprises a bleaching component and a cleaning component,
Preferably, the washing component is granulated into detergent particles, and this and the bleaching component are powder mixed.

As the bleaching component, an oxygen-based bleach is used, and a bleaching activator can be added in combination as needed.

Bleach is an oxygen-based peroxide with an average particle size of 250 to 1000.
It is preferable to use as a μm granular material.

Specific examples of bleaching agents include inorganic bleaching agents such as percarbonate and perborate, and diperoxide decanoic acid (DPDD).
A), monoperoxyphthalate, 3,3-sulfonylbisperoxypropionic acid (SBPP), 4,4-sulfonylbisperoxybenzoic acid (SBPB), phthaloylaminoperoxycaproic acid (PAP), etc. An organic peracid bleach is used.

Examples of the bleach activator include the following (1) to (11).

(1) tetraacetylethylenediamine (TAED) (2) tetracetylglycoluril (TAGU) (3) pentaacetylglycose (PAG) (4) sodium nonanoyloxybenzenesulfonate (NOBS) (5) octanoyloxybenzenesulfonic acid Sodium (OOBS) (6) 1-chloro-4-hydroxy-2,2,6,6-tetramethylpiperidine (TMP-C1) (7) Amphoteric interface represented by the following general formula (IV) or (V) Activator (R ₁ : alkyl group having 1 to 22 carbon atoms R ₂ , R ₃ : lower alkyl group n: 1 to 5) (8) Compound represented by the general formula (VI) (R ₂ , R ₃ : same as general formulas (IV) and (V)) (9) Compound represented by general formula (VII) (R ₁ , R ₂ , R ₃ , R ₄ , R ₅ , R ₆ : an alkyl group having 1 to 4 carbon atoms Y ₁ , Y ₂ : —CH ₂ CH ₂ — or —CH ₂ CH (OH) CH ₂ — X: alkylene group or alkenylene group having 1 to 4 carbon atoms Z ₁ , Z ₂ : inorganic or organic counter ion) (10) Acyl compound of dihydroxydioxane represented by formula (VIII) [Wherein R ¹ is a linear or branched alkyl group or an ankenyl group, and the alkyl moiety of these groups includes:
An alkyl group having 1 to 3 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a carboxyl group having 1 to 3 carbon atoms, and a phenyl group may be substituted. The phenyl group may be substituted with one or two alkenyl groups having 1 to 3 carbon atoms or carboxyl groups. However, the carboxyl group present in R ¹ is in a neutralized form.

R ² and R ³ are a hydrogen atom or a linear or branched alkyl group having 1 to 16 carbon atoms, and the total number of carbon atoms of R ² and R ³ is 16 or less. Further, these alkyl groups may have a carboxyl group in a neutralized or esterified form, or substituted by phenyl residues. R ² and R ³ are carboxyl groups in a neutralized or esterified form, or (Wherein R ⁴ is equal to R ¹ ). (11) 1,2-diacyloxybenzene-3,5-disulfonic acid represented by the general formula (IX) (R, R ¹ : linear or branched alkyl group having 1 to 10 carbon atoms or phenyl group or substituted phenyl group having 6 to 10 carbon atoms M: hydrogen, alkali metal, alkaline earth metal, ammonium or substituted ammonium) The bleaching agent is 1 to 40% by weight in the bleaching detergent composition.
It is preferred to mix. Further, (a) the bleaching activator is (b) / (b) / (b)
(A) = 2/98 to 50/50 is preferably added, more preferably 5/95 to 40/60.

The detergent particles can contain conventional detergent components, for example, surfactants such as anionic surfactants and nonionic surfactants, and surfactants such as zeolites and builders.

Examples of the anionic surfactant include the following.

1) a linear alkylbenzene sulfonate having an alkyl group having an average of 8 to 16 carbon atoms; 2) an alpha-olefin sulfonate having an average carbon number of 10 to 20; 3) a sulfonic acid of a fatty acid lower alkyl ester represented by the following general formula: Salt or disalt of fatty acid sulfonate (R: alkyl group or alkenyl group having 8 to 20 carbon atoms Y: alkyl group having 1 to 3 carbon atoms or counter ion Z: counter ion) 4) Alkyl sulfate having 10 to 20 carbon atoms, 5) average carbon number Alkyl ether sulfate or alkenyl ether sulfate having 10 to 20 linear or branched alkyl or alkenyl groups and having an average of 0.5 to 8 mol of ethylene oxide added thereto; 6) Saturation having an average carbon number of 10 to 22 Or unsaturated fatty acid salts.

As a counter ion in these anionic surfactants, alkali metal salts such as sodium and potassium are usually suitable.

The bleaching detergent containing a PVA film of the present invention exhibits a remarkable discoloration preventing effect, particularly in a bleaching detergent containing a sulfonate of a fatty acid lower alkyl ester or a disalt of a fatty acid sulfonate as an anionic surfactant.

The following are suitable as the nonionic surfactant.

(1) An EO-added nonionic surfactant obtained by adding an average of 4 to 25 moles of ethylene oxide (EO) to a primary or secondary alcohol having 8 to 18 carbon atoms.

(2) EO-PO addition type nonionic surface activity in which ethylene oxide (EO) is added to a primary or secondary alcohol having 8 to 18 carbon atoms in an average of 4 to 25 mol and propylene oxide (PO) in an average of 3 to 15 mol. Agent.

As the aluminosilicate, a crystalline or amorphous aluminosilicate represented by the following general formula (II) or a mixture thereof is preferable.

x (M ₂ O or M′O) · Al ₂ O ₃ · y (SiO ₂ ) · w (H ₂ O) (II) (where M is an alkali metal atom and M ′ is exchangeable for calcium The alkaline earth metal atoms, x, y and w represent the number of moles of each component, and generally x is 0.7 to 1.
5, y1 to 3, and w are arbitrary numbers. The average particle size of the aluminosilicate is 5 μm from the viewpoint of detergency.
Or less, preferably 1 μm or less.

The anionic surfactant is preferably incorporated in the detergent composition in an amount of 10 to 50% by weight.

The aluminosilicate is preferably incorporated in the detergent composition at 5 to 40% by weight.

Other additives include inorganic builders such as sodium tripolyphosphate and sodium pyrophosphate; sodium citrate, sodium ethylenediaminetetraacetate, nitrilotriacetate, sodium polyacrylate, sodium acrylate-sodium maleate anhydride. Calcium ion trapping builder such as polymer and polyacetal carboxylate; Alkaline builder such as carbonate and silicate; Anti-recontamination agent such as carboxymethylcellulose and polyethylene glycol; , Urea and other clay modifiers; quaternary ammonium salts, softening agents such as bentonite; protease, amylase, lipase,
Enzymes such as cellulase; sodium sulfate, glycerin,
Fluorescent agents, fragrances, dyes and the like can be used.

The cleaning particles of the present invention can take various forms,
For example, granular detergent particles in the form of hollow beads, such as conventional spray-dried detergents, can be used. Also, JP-A-60-96
As shown in JP-A-698, high bulk density granular detergent particles in which the detergent component is filled inside the detergent particles can also be used.

When the detergent composition has a high bulk density, the bulk density is 0.5 to
Preferably, the composition is 1.2 g / cc.For example, such a composition is kneaded with each detergent component as described in JP-A-60-96698 and JP-A-62-597. Kneading,
After mixing, it can be produced by pulverizing and granulating with a cutter mill type pulverizer, and then coating with a water-insoluble fine powder. Some or all of the detergent components can be supplied in the form of a spray-dried product and kneaded.

The bleaching agent or further the bleaching activator may be granulated together with all or a part of the above-mentioned detergent components. desirable.

Effect of the Invention According to the present invention, a bleaching detergent composition in which a bleaching component and a powder component are mixed with a powder is filled in an embossed partially saponified PVA film, so that the bleaching and washing during washing is performed. The occurrence of fading can be reduced even if the cloth for washing a colored pattern is mistakenly contacted before the agent composition is dissolved.

Hereinafter, the configuration and operation and effect of the present invention will be specifically described with reference to examples. Prior to this, the evaluation method adopted in the examples will be described.

Evaluation method of degree of fading As a dyed cloth, a cloth of cotton broad No. 100 dyed with a metal-containing dye CI Brown 18 or a reactive non-metal-containing dye CI Red 21 was used, and evaluated.

An 11 cm × 11 cm dyed cloth is placed in a beaker and immersed in 200 ml of tap water at 40 ° C. Then, 10 g of bleaching detergent composition
Alternatively, the same amount of bleaching detergent packaged in a PVA film is added from above and brought into contact with the dyed cloth. After left at a constant temperature of 40 ° C. for 1 hour, the dyed cloth was taken out, washed with water, air-dried, and visually evaluated for the degree of fading based on the following evaluation criteria.

4 points: The part in contact with the bleaching component particles is significantly faded,
Many spots are observed.

3 points: The part in contact with the bleaching component particles is slightly faded, and is clearly spotted.

2 points: The part in contact with the bleaching component particles is slightly faded, and is slightly observed as spots.

 1 point: Almost no discoloration, no spots observed.

EXAMPLES Example 1 Each component shown in Table 1 except for the bleaching component and oxygen was used as a water slurry, which was spray-dried by a conventional method to obtain detergent particles (bulk density: 0.33 g / cc). The detergent particles were mixed with a bleaching component and oxygen powder to prepare a bleaching cleaning composition.

To prepare a bleaching detergent containing a PVA film, use a partially saponified polyvinyl alcohol film having a thickness of 25 μm, fill the PVA film with 40 g of the above-mentioned detergent composition (corresponding to one washing operation), and measure 11 × 8 cm in size. Heat seal to 1
Packed. Here, as the above-mentioned PVA film, a 40-mesh silk-embossed film was used as an example, while a comparative example used a cleaning agent that was not included in the PVA film.

Table 2 shows the results of evaluating the degree of fading of these bleaching detergents.

Example 2 A high bulk density bleaching detergent composition (bulk density; 0.7 g / cc) having the composition shown in Table 3 below was produced.

The bleaching components, enzymes, and each component excluding a part of the A-type zeolite in Table 3 were kneaded with a kneader, and the obtained intimate mixture pellets (2 cm square) and the A-type zeolite were crushed by a crusher (Okada Seiko, speed (Mil ND-30 type) and pulverized and granulated.

The bleaching component and the enzyme were powder-mixed with the resulting high bulk density detergent particles to obtain a bleaching detergent composition.

For the preparation of the PVA film-containing cleaning agent, the same PVA film as used in Example 1 was filled with 25 g of the above high bulk density bleaching cleaning agent, and heat-sealed to a size of 7 × 6 cm to form one pack. This was used as an example, and a cleaning agent not included in the PVA film was used as a comparative example.

Table 4 shows the results of evaluating the degree of fading of these compositions.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) C11D 17/04 C11D 3/395 C11D 7/54 WPI / L (QUESTEL)

Claims (1)

(57) [Claims] 1. A bleaching detergent composition in which a bleaching component containing an oxygen-based bleaching agent or an oxygen-based bleaching agent and a bleaching activator and a cleaning component are powder-mixed, and embossed so that the surface becomes uneven. A bleaching detergent containing a polyvinyl alcohol film, which is packaged with a processed partially saponified polyvinyl alcohol film.