JPH083600A - Granular nonionic cleaner product - Google Patents

Abstract

PURPOSE:To effectively prevent compression solidification of a granular nonionic cleaner composition by providing a corner part at the side wall of a container with a curvature. CONSTITUTION:This granular nonionic cleaner product is obtained by packing a nonionic cleaner composition containing 10-70wt.% of a nonionic surfactant, 5-50wt.% of an aluminosilicate, >=0.2wt.% and <5wt.% of porous inorganic oxide powder such as amorphous silica and <75wt.% of a carbonate into a container of a composite material which comprises the bottom part of the container composed of a molded article of a plastic and most of the side wall part of the container made of a paper sheetlike material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a granular nonionic detergent product in a special container having improved oozing at the bottom of the container during storage.

[0002]

2. Description of the Related Art Nonionic surfactants generally have a low foaming property, their detergency is hardly affected by the hardness of water, and they are particularly excellent in dirt dispersibility and stain dispersibility at low temperatures. Furthermore, nonionic surfactants are excellent surfactants that have good biodegradability and low environmental load, low toxicity, and safety.
Examples of the method for producing a granular detergent containing a nonionic surfactant as a main component include, for example, JP-A-52-101121, JP-A-62-263299, and JP-A-57-1.
Various methods have been proposed in Japanese Patent Publication No. 59898.

However, nonionic surfactants are generally liquid at room temperature, and there is a concern that the nonionic surfactant exudes from the granular nonionic detergent composition into the detergent container. When the nonionic surfactant oozes out into the detergent container, the product appearance may be deteriorated, the detergency may be reduced due to the decrease of the nonionic surfactant in the container contact portion, and the fluidity of the detergent particles and the anti-caking property may be adversely affected. is expected.

In Japanese Patent Laid-Open No. 339898/1992, 5-20% of an amorphous oil-absorbing carrier is blended to improve the exudation of a nonionic surfactant, but this component is powdery. Severely, when a large amount is mixed in a detergent, there is a problem that a lot of dust is generated at the time of production and use at the time of washing, so that workability is deteriorated and discomfort due to "creeping" occurs.

By the way, as a container for the conventional granular detergent, a box-shaped container made of processed paper has been generally used because of its low price, ease of manufacture, molding, and printability.

However, such a conventional box-shaped paper container is
Satisfactory results cannot be obtained even if it is applied to the granular nonionic detergent composition as it is. Therefore, in JP-A-4-360000, a granular nonionic detergent composition is provided in a container made of a paper product laminated with a polymer having a specific property. The filling of the nonionic surfactant is attempted to be improved, but even if this method is used, the exudation of the nonionic surfactant at the bottom of the container during storage is not completely improved.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a granular nonionic detergent product in a special container which has improved oozing at the bottom of the container during storage.

[0008]

As a result of intensive studies to solve the above problems, we have filled a special composite material container made of plastic and paper with a granular nonionic detergent composition having a predetermined composition. As a result, the inventors have found that the problem of bleeding can be solved and completed the present invention.

That is, the granular nonionic detergent product of the present invention is a granular nonionic detergent composition containing the following components (a), (b), (c) and (d) formed from a plastic molding at the bottom of the container. It is characterized in that most of the side wall of the container is filled in a composite material container formed of a paper sheet.

(A) Nonionic surfactant: 10 to 70% by weight. (B) Aluminosilicate: 5 to 50% by weight. (C) Porous inorganic oxide powder: 0.2% by weight or more and less than 5% by weight. (D) Carbonate: less than 75% by weight.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the granular nonionic detergent product of the present invention, a granular nonionic detergent composition having a specific composition is filled in a specific composite material container. Preferable embodiments of this composite material container are as follows.

(1) The container of the composite material is at least
The bottom of the container is formed of a plastic molded body, and most of the side wall of the container is formed of a paper sheet. The plastic molding and the paper sheet are fixed and integrated to form a closed container. (2) The plastic molded body forms a shallow tray-shaped container bottom portion including a bottom plate portion and lower side walls integrally standing from the bottom plate portion.

(3) From the lower portion of the side wall forming the bottom of the container of the plastic molded body, a strip-shaped (width-separated) standing piece is integrally extended upward, and the standing piece and the lower side wall are integrally formed. The paper sheet is fixed to and. (4) The planar shape (transverse cross-sectional shape) of the container is substantially rectangular, and the standing piece portions of (3) above are provided on two opposing pieces.

(5) The plastic molding has a bottom plate portion,
It is composed of a lower part of a side wall standing upright from the bottom plate part, an upper part of the side wall, and two standing piece parts standing upright from the lower part of the side wall and connected to the upper part of the side wall.
The paper sheet-like body is fixed to the outer peripheral surfaces of the lower side wall, the upright piece part and the upper side part to cover them, and constitutes most of the side wall part of the container.

(6) In a cross section of a substantially rectangular container,
Curvature is provided inside the four corners (corner portions). The radius of curvature is preferably 1 to 20 mm. Examples of the composite material container of the present invention will be shown below with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing a structural example of a composite material container used in the present invention, and FIG. 2 is a line A in FIG.
It is sectional drawing along the -A direction. FIG. 3 is a cross-sectional view of this composite material container.

The composite material container is composed of a container body 11 and a lid 41, and a band for carrying can be attached through the locking projection 25 of the container body 11. Lid 41
The material is not particularly limited, but is preferably formed of a flexible plastic material. The container body 11 is composed of a plastic molded body 13 and a paper sheet-like body 31.

In the plastic molded body 13, the bottom plate 15, the side wall lower part 17, the standing pieces 19, 19 and the side wall upper part 23 are integrally molded. Reinforcing ribs 21 and 21 are provided on the upright pieces 19 and 19. The back surface of the paper sheet-like body 31 is firmly joined to most of the outer peripheral surfaces of the lower side wall 17, the standing pieces 19 and 19 and the upper side wall 23 without providing a gap. Most of the outer peripheral surface of the container side wall is formed. That is, the container body 11
Most of the side wall of the paper sheet 31 is covered with the outer surface of the paper sheet 31.

The paper sheet-like body 31 and the lower portion 17 of the side wall made of plastic are hermetically coupled to each other so that water does not enter between them and most of the side wall of the paper sheet-like body 31. Since it covers up to the lower end portion, there is no inconvenience in appearance, and it is also possible to apply any design effect or print information by utilizing the printing characteristics of paper. The plastic molded body 13 and the paper sheet-like body 31 can be joined by ordinary bonding, but the paper sheet-like body 31 is loaded into a molding die for ink injection or the like,
The molten and fluidized plastic material is poured into this, and at the same time as molding of the plastic molded body 13, the container body 1
It is desirable to form 1. This further enhances the integrity of the composite material container of the present invention and facilitates its manufacture.

As shown in the cross sectional view of the container body of FIG. 3, it is desirable that the four corners 29 of the side wall of the container body 11 have a curvature. As described above, since the nonionic surfactant is generally a liquid at room temperature, the nonionic surfactant exudes from the granular nonionic detergent composition to the detergent container, and the granular nonionic detergent is found at the corner portion of the container, particularly at the portion close to the bottom. The composition is susceptible to consolidation and solidification. In a conventional box-shaped container using processed paper, it is difficult to effectively prevent the solidification as described above because the corners have no curvature and have a right angle, and it is also difficult to have a curvature. It was It is difficult to take out the detergent once solidified, and there is also a problem from the product image. Further, by providing the curvature, the detergent in the container can be easily taken out with a spoon or the like. By providing curvature at the corners in this way,
Solidification due to compaction can be prevented, and no problem occurs even after long-term storage. This curvature is preferably in the range of 1 to 20 mm in radius of curvature.

By providing a curvature of a size corresponding to the corner portion 21 of the plastic molded body 13, the paper sheet-like bodies 31 integrally joined together are automatically provided with a curvature of the same size. The curvature of the corner can be set, and the curvature can be formed very easily as compared with the conventional paper container.

By fixing the back surface of the paper sheet-like body 31 to the outer surface of the side wall lower portion 17, the standing pieces 19 and 19 and the side wall upper portion 23 of the plastic molded body 13, sufficient strength as a container can be realized. Also, since the side wall that occupies a large area and is easily visible to the user can be made of paper material, not only can the cost of the container be reduced, but the printing characteristics of paper can be fully utilized. can do. The paper sheet body 31 can be formed of a paper material such as processed paper, but a polypropylene sheet or the like can be pressed to improve the moisture resistance.

It is desirable that the upper side wall 23 is integrally formed with the standing pieces 19, 19, the lower side wall 17 and the bottom plate 15 from the viewpoint of the strength of the plastic molded body 13 and further from the viewpoint of the strength of the container body 11. is there. Further, the upper side wall 23 is formed of a plastic material, the fitting protrusion 27 is provided thereon, and the lid 41 is also formed of the plastic material and the corresponding fitting recess 43 is provided. The property makes it possible to form a hermetic seal. This makes it possible to prevent moisture absorption during storage more effectively.

The granular nonionic detergent composition filled in the above-mentioned composite material container is (a) nonionic surfactant, (b)
It contains aluminosilicate, (c) porous inorganic oxide powder and (d) carbonate. Examples of the nonionic surfactant as the component (a) used in the present invention include the following.

(1) Carbon number 6 to 22, preferably 8 to 1
A polyoxyalkylene alkyl (or alkenyl) ether obtained by adding an alkylene oxide having 2 to 4 carbon atoms to an aliphatic alcohol of 8 on average in an amount of 3 to 30 mol, preferably 7 to 20 mol. Among these, polyoxyethylene alkyl (or alkenyl) ether and polyoxyethylene polyoxypropylene alkyl (or alkenyl) ether are preferable.

(2) Polyoxyethylene alkyl (or alkenyl) phenyl ether (3) General formula (I) of the following chemical formula 1 in which alkylene oxide is added between ester bonds of long-chain fatty acid alkyl ester
Fatty acid alkyl ester alkoxylate

[0027]

Embedded image R ₁ CO (OA) nOR ₂ (I) (R ₁ CO: C 6-22, preferably 8-18 fatty acid residue OA: 2-4 carbon atoms such as OCH ₂ CH ₂ ; Preferably 2
Addition unit of alkylene oxide of 3 n: Shows the average number of moles of addition of alkylene oxide, 3 to
30, preferably a number of 7 to 20 R ₂ : a lower alkyl group having 1 to 3 carbon atoms)

(4) Polyoxyethylene sorbitan fatty acid ester (5) Polyoxyethylene sorbit fatty acid ester (6) Polyoxyethylene fatty acid ester (7) Polyoxyethylene hydrogenated castor oil (8) Glycerin fatty acid ester

Among the above nonionic surfactants, polyoxyethylene alkyl (or alkenyl) ethers,
A fatty acid methyl ester ethoxylate obtained by adding ethylene oxide to a fatty acid methyl ester is particularly preferably used.

The nonionic surfactant as the component (a) is 10 to 70% by weight, preferably 10 to 70% by weight of the resulting detergent composition.
The amount is 60% by weight, more preferably 12 to 40% by weight. If the content is less than 10% by weight, the excellent cleaning properties of the nonionic surfactant cannot be utilized,
On the other hand, when it exceeds 70% by weight, the tackiness of the granular nonionic detergent composition is rapidly increased and it becomes difficult to manufacture it, such as adhesion to a manufacturing apparatus.

As the aluminosilicate as the component (b), crystalline or amorphous zeolite having an average particle size of 0.1 to 10 μm is used, and synthetic zeolite is preferable.

The aluminosilicate as the component (b) is blended in an amount of 5 to 50% by weight, preferably 20 to 40% by weight of the resulting detergent composition. If the blending amount is less than 5% by weight,
The fluidity of the obtained granular nonionic detergent composition is remarkably lowered, while when it exceeds 50% by weight, the amount of fine powder of the granular nonionic detergent composition is rapidly increased, which causes a problem of dust generation.

As the porous inorganic oxide powder as the component (c), one having a SiO ₂ content of 50% by weight or more is suitable, and amorphous silica (trade name: TOKUSIL (Tokuyama Soda),
Aerosil (Japan Aerosil), crystalline calcium silicate (trade name: Florite (Tokuyama Soda)), crystalline magnesium silicate (trade name: Wollastonite (Hayashi Kasei))
And the like.

The porous inorganic oxide powder as the component (c) is contained in the detergent composition of the present invention in an amount of 0.2% by weight or more and less than 5% by weight,
It is preferably blended in an amount of 1 to 4% by weight. If the amount is less than 0.2% by weight, the fluidity of the resulting granular nonionic detergent composition is significantly reduced, while if it exceeds 5% by weight, the amount of fine powder of the granular nonionic detergent composition is rapidly increased, and Dust problem occurs.

Examples of the carbonate as the component (d) include sodium carbonate and potassium carbonate, and as the sodium carbonate, heavy sodium carbonate having a high bulk density (trade name: granulated ash (Asahi Glass)), light weight having a low bulk density Sodium carbonate (trade name:
Light ash (Asahi Glass Co., Ltd.), etc., but light ones are preferred.

The carbonate as component (d) is incorporated in the detergent composition of the present invention in an amount of less than 75% by weight. If the blending amount is 75% by weight or more, the amount of fine powder of the obtained granular nonionic detergent composition will rapidly increase, causing a problem of dust generation. Further, it is preferable that the component (d), sodium carbonate, is blended in an amount of 5% by weight or more, whereby the granular nonionic detergent composition obtained by this can have good fluidity and can be prevented from adhering to the manufacturing apparatus. The carbonate as the component (d) is preferably added in an amount of 10 to 50% by weight.

Further, it is preferable to add a fluorescent agent to the detergent composition of the present invention, and in particular, a bis (triazinylamino) stilbene disulfonic acid derivative and a bis (sulfostyryl) biphenyl salt [Tinopearl CBS] are combined. By combining and blending, the effect will be fully exhibited. The fluorescent agent is preferably added to the detergent composition in an amount of 0.1 to 0.8% by weight.

Into the granular nonionic detergent composition of the present invention, the following ingredients which are usually incorporated in detergent raw materials can be incorporated.

(1) Inorganic alkaline builder: sodium sulfite, sodium silicate, etc. (2) Enzyme: lipase, protease, cellulase, amylase, etc. (3) Bleach: percarbonate such as sodium percarbonate, perborate, etc. (4) ) Antistatic agent: di-long chain alkyl type quaternary ammonium salt, tertiary amine, etc. (5) Surface modifier: bentonite, kaolinite, etc. (6) Anionic surfactant: α-olefin sulfonate, direct Chain alkylbenzene sulfonate, α-sulfo fatty acid methyl ester salt, etc.

The method for producing the granular nonionic detergent composition in the present invention is not particularly limited, but (a) nonionic surfactant, (b) crystalline aluminosilicate, (c) porous inorganic oxide powder and ( d) Carbonate is kneaded and mixed uniformly using a continuous kneader to form a solid detergent, and then inorganic fine powder is added as a grinding aid, and the solid detergent is crushed to form a granular or granular form. Kneading granulation method for producing detergent particles; or (a) nonionic surfactant, (b) crystalline aluminosilicate, (c) porous inorganic oxide and (d) carbonate using a stirring granulator After uniform stirring and granulation, a stirring and granulation method in which a fluidity improver is added to give powdery or granular detergent particles is preferred.

[0041]

According to the present invention, a granular nonionic detergent composition having a specific composition is filled in a composite material container of a plastic material and a paper material having a specific structure, so that the granular nonionic detergent composition during long-term storage can be obtained. Exudation can be effectively prevented.

Furthermore, if the side wall corners of the composite material container have a curvature, it is possible to effectively prevent the compaction and solidification of the granular nonionic detergent composition, and the composite material container of the present invention can easily have an appropriate curvature. Can be formed in part.

[0043]

Example A granular nonionic detergent composition having the composition shown in Table 1 below was prepared and filled in a predetermined container for use, and a oozing test and a solidification test were conducted. The test method and the method for preparing the granular nonionic detergent composition are shown below.

<Shidashi Test> 1.5 kg of the granular nonionic detergent composition prepared by the following method was filled in each container described below, left for 90 days at 40 ° C.-85% RH, and then taken out. The degree of seepage at the bottom was visually determined according to the following criteria, and the results are shown in Table 1. ◯: No bleeding was observed Δ: Slight bleeding was observed ×: Weeping was observed

<Solidification test> 1.5 kg of the granular nonionic detergent composition prepared by the following method was put in each container used in Table 1.
It was filled, left for 90 days under the condition of 40 ° C.-85% RH, and then taken out. Open the top of this container and use JIS
After carefully transferring onto a standard 4-mesh sieve and gently shaking the sieve, the weight on the sieve and the total weight were determined, and the solidification property was calculated from the following equation 1 and shown in Table 1.

[0046]

[Equation 1]

<Preparation Method of Granular Nonionic Detergent Composition> [Production Method I] The amount of nonionic surfactant shown in Table 1
Finely-synthesized zeolite, amorphous silica (or crystalline calcium silicate), sodium carbonate and a fluorescent agent were put into a continuous kneader (KRC2 type manufactured by Kurimoto Iron Works Co., Ltd.) and kneaded.
A kneaded product (solid detergent) was obtained by mixing.

Then, the obtained kneaded product and 5% by weight of zeolite as a grinding aid were used, and the hole diameter of the screen was 15 mm.
φ, 7 mmφ, 4 mmφ Fitz mill (DKASO6 type manufactured by Hosokawa Micron Co., Ltd.) was put into 3 stages and crushed to obtain detergent particles (average particle size: 500 μm), and further 2% by weight of zeolite as an enzyme and a fluidity improving agent. The powders were mixed and the fragrance was sprayed to obtain a granular nonionic detergent composition.

[Production Method II] The amounts of finely divided synthetic zeolite, amorphous silica (or crystalline calcium silicate), sodium carbonate and a fluorescent agent in the amounts shown in Table 1 were added to a Loedige mixer (M-Matsusaka Giken Co., Ltd.). 20 type), the main shaft (2
(00 rpm) and chopper (6000 rpm) were started to be stirred. The amount of nonionic surfactant shown in Table 1 was added thereto, and the mixture was granulated until the average particle size became 500 μm. Further, 5% by weight of zeolite as an enzyme and a fluidity improving agent was powder-mixed, and a fragrance was sprayed. A granular nonionic detergent composition was obtained.

[0050]

[Table 1]Table 1: Composition of granular nonionic detergent composition and evaluation results Example Comparative example 1 2 3 4 5 1 2 3 4 5 Composition wt (%) (a) Nonionic surfactant AE Nonion-25-25-40--25-25-40-FEM Nonion 25-30-5050-30-30-50 (b) Fine zeolite 25 25 25 25 25 25 25 25 25 25 (c) Porous inorganic oxide powder Amorphous silica − 4 − 2 − − 4 − 2 − Crystalline calcium silicate 2-3 2 4 2 − 3 2 4 (d) Sodium carbonate 38 38 32 23 10 38 38 32 23 10 Grinding aid 5-5-5 5-5-5 Flowability improver 2 5 2 5 2 2 5 2 5 2 Fluorescent agent-1 0.2 0.3 0.2 0.4 0.4 0.2 0.3 0.2 0.4 0.4 Fluorescent agent-2 0.2 0.1 0.15 0.1 0.15 0.2 0.1 0.15 0.1 0.15 Enzyme 1.5 2.0 1.0 2.0 2.0 1.5 2.0 3.0 2.0 2.0Fragrances, pigments and other trace ingredients Manufacturing Method I II I II I I II I II I Test bleeding test Container used A A A A A A B C B C BEvaluation results ○ ○ ○ ○ ○ △ × × × × Solidification test Container used A A A A A A D C C D C Evaluation result (%) 0 0 2 3 5 15 20 30 50 75 (Note) AE Nonion: C₁₂~_FifteenH_{twenty five}~₃₁O (CH₂CH₂O)₉H (Lion Chemical Co., Ltd. Dovanox 25I) FME: C₁₁H_{twenty three}CO (OCH₂CH₂)₉OCH₃(Lion Chemical Co., Ltd. Fatty Acid Methyl Ethoxylate) Fine-grained Zeolite: Shilton B (manufactured by Mizusawa Chemical Co., Ltd.) Amorphous Silica: Tokusil N (manufactured by Tokuyama Soda Co., Ltd.) Crystalline calcium silicate: Fluorite R ( Tokuyama Soda Co., Ltd. Sodium carbonate: Light ash (Asahi Glass Co., Ltd.) Fluorescent agent-1: 4,4'-bis (4-amino-6-morpholino-1,3,5-triazinylamino) stilbendisulfone Acid (Whitetex SA) Fluorescent agent-2: 4,4'-bis (2-sulfostyryl) biphenyl disodium (Tinopearl CBS-X) Enzyme: Lipase / Protease / Cellulase = 1/1/1 mixture Use container A: Container of the present invention shown in FIG. 1 (curvature radius = 5 mm) Container B: Container similar to that shown in FIG. 1 except that the bottom part is also made of paper Container C: commercially available Processed paper box type small size carton (22 cm x 15.5 cm x 5.5 cm) Container used: Container similar to that shown in Fig. 1 except that the corners are right angles.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a composite material container used in the present invention.

FIG. 2 is a cross-sectional view taken along the line AA direction in FIG.

FIG. 3 is a transverse cross-sectional view seen from above the container body.

[Explanation of symbols]

 11 Container Main Body 13 Plastic Molded Body 15 Bottom Plate 17 Sidewall Lower Part 19 Standing Piece 21 Rib 23 Sidewall Upper Part 25 Locking Protrusion 27 Fitting Protrusion 29 Corner Part 31 Paper Sheet Body 41 Lid Body 43 Fitting Recessed Part

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location C11D 17/06 (72) Inventor Nobutoshi Shindo 1-3-7 Lion Head Office, Sumida-ku, Tokyo Lion Within the corporation

Claims (1)

[Claims] 1. (a) Nonionic surfactant: 10 to 70
% By weight, (b) aluminosilicate: 5 to 50% by weight, (c) porous inorganic oxide powder: 0.2% by weight or more and less than 5% by weight, (d) carbonate: less than 75% by weight, above A granular nonionic detergent composition containing components (a), (b), (c) and (d); a container bottom is formed of a plastic molded body, and most of a container side wall is formed of a paper sheet. A granular nonionic detergent product characterized by being filled in a composite material container.