JPS62197497A - Tablet detergent - 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 Field of Industrial Application The present invention relates to a tablet detergent with high breaking strength. To be more specific, the present invention is as follows.

Not only can it be used as a laundry detergent, but it can also be used in the kitchen and bathroom.

It is suitably used as a detergent for hand washing. It has high breaking strength and is less likely to break during tableting, packaging, transportation, etc.
And it relates to a tablet detergent that easily disintegrates in water.

Background of the Invention There are two types of commonly used detergents: liquid type and granular type.The former type is mainly used for kitchens, bathrooms, and washrooms, while the latter granular type is It is mainly used for washing clothes etc.

Incidentally, although liquid detergents have the advantage of not being bulky and easily soluble in water, they have the disadvantage that viscous liquid adheres to containers, measuring cups, etc., impairing the usability.

In order to improve solubility, granular detergents are made into hollow particles by spray drying, etc. As a result, they are bulky and tend to generate fine powder, which can irritate the eyes and nose when used. are doing.

Therefore, in order to eliminate the drawbacks of such liquid detergents and granular detergents, attempts have been made recently to develop tablet detergents.
ing. This tablet detergent.

Although it has the advantage of being easier to use than the liquid detergents and granular detergents mentioned above, it is required to have properties such as being strong enough to withstand impacts during manufacturing and transportation, and being easily disintegrated in water.

If the strength of the tablet is low, it is likely to be broken during tablet compression, reducing productivity. Furthermore, it is likely to be broken due to impact during packaging or transportation, which inevitably deteriorates the product image.

Therefore, in the pharmaceutical and food fields, it has been proposed to use various binders to solve these problems. As this binder, for example, polysaccharides and crystalline cellulose are well known.

By the way, in tablet detergents containing a large amount of anionic surfactant, the surfactant with high water utilization becomes viscous due to water utilization, so the penetration of water into the inside of the tablet is delayed. It has the unfavorable property of slowing down the rate of disintegration. These properties vary greatly depending on the pressure conditions during tablet compression, and higher pressure makes the active agent denser and further slows water penetration. Therefore, from the viewpoint of the disintegration rate of the tablet, it is desirable to compress the tablet at as low a pressure as possible; however, when the tablet is compressed at a low pressure, the strength of the tablet inevitably decreases.

Therefore, a base material is needed to supplement the strength of the tablet, but when used in a detergent system, the base material aggregates in the cleaning solution and impairs the feeling of use9, and it adheres to the cleaning product. It must be dissolved or finely dispersed in water to avoid
Therefore, previously known substances such as crystalline cellulose are unsuitable for use in detergents.

Problems to be Solved by the Invention The purpose of the present invention is to overcome the drawbacks of conventional tablet detergents, to have high breaking strength, less breakage during tableting, packaging, transportation, etc., and to be water resistant. Our goal is to provide detergent tablets that easily disintegrate.

Means to Solve the Problems The inventors of the present invention have conducted extensive research to achieve the above object, and have found that anionic surfactants, quaternary nitrogen-containing cellulose ether powders of a specific particle size, and certain inorganic chlorides are added to anionic surfactants. They discovered that the objective could be achieved by combining things, and based on this knowledge, they completed the present invention.

That is, 1 the present invention provides (A) anionic surfactant 5-
4oMIk%, (B) 0.1-5% by weight of quaternary nitrogen-containing cellulose ether powder whose fraction passing through the 3o mesh sieve has a particle size of 70% or more and (C
) 3 to 80% by weight of chloride containing monovalent or divalent cations
The present invention provides a tablet detergent comprising:

The tablet as used in the present invention has a diameter of about 151 m to about 4 m.
In order of 0, the thickness is about 5 nm to about 15 mm, and the air content indicating the degree of clogging of the tablet, that is, the porosity is about 10
-25 inches are shown.

In the detergent of the present invention, examples of the anionic surfactant used as a component include those commonly used in ordinary granular detergents, such as linear alkylbenzenesulfonic acid containing an alkyl group having an average carbon number of 10 to 16. Salt (LAS),
Olefin sulfonate (As
8) has a linear or branched alkyl group or alkenyl group having an average carbon number of 10 to 20, and an average of 0.5
Alkyl ether sulfate or alkenyl ether sulfate (AKS) with ~8 moles of ethylene oxide added,
Examples include alkyl sulfates (As) having an alkyl group having an average carbon number of 10 to 20.

One type of these anionic surfactants may be used, or
Two or more types may be used in combination, and the content in the tablet detergent is selected within the range of 5 to 40% by weight. If this amount is less than 5% by weight, it is not practical because the shape of the tablet must be made larger or the number of tablets used must be increased in order to satisfy the cleaning power.
Exceeding this is not preferable because the amount of builder etc. will be reduced.

In the detergent of the present invention, the quaternary nitrogen-containing cellulose ether used as component (B) is hydroxyethyl cellulose or hydroxypropyl cellulose obtained by adding ethylene oxide or propylene oxide to cellulose, and Examples include those obtained by reacting glycidyl trialkylammonium chlorides or bromides having 1 to 3 in number. In this reaction, the number of moles of ethylene oxide or propylene oxide added per anhydroglucose unit is preferably in the range of 1 to 4, and the nitrogen content in the quaternary nitrogen-containing cellulose ether is 0.4 to 4.
A range of 3 by weight is preferred. For quaternary nitrogen-containing cellulose ethers outside this range.

Therefore, the effects of the present invention cannot be fully exhibited.

In the present invention, it is necessary to use a powdered quaternary nitrogen-containing cellulose ether having a particle size of 70 or more when passing through a 30-mesh sieve. If particles having a particle size outside this range are used, the effect of the present invention will be less effective, and the swelling of each particle will be delayed, resulting in adhesion to the items to be washed, impairing the feeling of use. Also, as for the average particle size of this thing.

A range of 50 to 450 μm is preferred.

The content of this quaternary nitrogen-containing cellulose ether powder is selected within the range of 0.1 - + iIE amount - for the tablet detergent. If the content is less than 10,000% by weight, the effect of the present invention will not be fully exhibited, and if it exceeds -50,000% by weight, there will be no improvement in the effect considering the amount, so it is recommended to add more than 5% by weight. is meaningless.

Preferred quaternary nitrogen-containing cellulose ethers for use in the detergents of the invention include, for example, Leogard, KG
Examples include P, MLP, MGP% GP [all Lion ■Crack, product names].

In the detergent of the present invention, the chloride used as component (C) contains a monovalent or divalent cation.

Examples of monovalent cations include lithium chloride,
Examples of divalent cations such as sodium chloride, potassium chloride, and ammonium chloride include magnesium chloride and calcium chloride. These chlorides may be used alone or in combination of two or more, and those containing crystal water may also be used.

The chloride content is 3-8 for tablet detergent.
0 weight! Select n in the range of -1. If this amount deviates from this range, the effects of the present invention will not be sufficiently exhibited.

In addition to the above-mentioned essential ingredients, the detergent of the present invention may optionally contain:
Other ingredients used in tablets for medicines and foods, such as sodium bicarbonate and organic acids, which are components of effervescent tablets, or disintegrants such as starch and starch derivatives can be included. Furthermore, the detergent of the present invention contains other ingredients not used in ordinary granular detergents, such as inorganic builders such as sodium tripolyphosphate, zeolite, sodium sulfate, and sodium carbonate, sodium citrate, sodium ethylenediaminetetraacetate, and sodium nitrilotriacetate. Organic builders such as sodium acetate and polyethylene glycol, as well as additives such as dyes, enzymes and bleaching agents, can be contained as desired.

In this way, the composition obtained by blending each component is
It can be easily molded according to commonly used tablet molding methods.

Effect of the invention The tablet detergent of the present invention has high breaking strength.

It is less likely to be destroyed during tableting, packaging, and transportation, and water penetrates into the inside of the tablet quickly, making it easy to disintegrate.
It is suitable for use in the kitchen, bathroom, and as a detergent for hand washing, etc., and has high practical value.

EXAMPLES Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these examples in any way.

In addition, the breaking strength and softening speed (disintegration property) of tablet detergents
The porosity was measured according to the method shown below.

(1) Breaking strength measuring device FUDOHRHKOMETF:RNRM-
Using a 2010J-CW T, 5PKKD 5 cm/min adapter flattened 8, the total breaking strength in the tablet surface measurement direction is measured.

(2) Softening rate The molded product was placed in water at 30° C. After 2 minutes, the infiltrated and softened portion was removed, the dry weight of the residue was measured, and the softening rate was calculated from the following formula.

(3) Porosity BKCKMAN The true specific gravity of the components was determined using an air comparison hydrometer model 930, and the porosity was calculated from a linear equation.

V: Apparent volume of tablet vl: true volume of one component The abbreviations and details of the components in Table 1 are as follows.

Na2CO3: Grain ash Hydroxyprobil starch - 105℃ dry U food 3.
8% cornstarch = 105℃ drying loss 1.
5% quaternary nitrogen-containing cellulose ether: Example 1 After uniformly mixing the powder components according to the following composition, this mixture was placed in a 6.59f cylinder with an inner diameter of 25 m, and a pressure of 100 to 300 P/- was applied. Molded with.

The porosity, breaking strength, and softening rate in water of the molded product thus obtained were determined. The results are shown in Table 1.

Blend composition AO821.6% by weight NaC275 Fragrance/pigment 0.4 Additive 3 For comparison, each performance was determined in the same manner for a molded product that was not blended with an additive (quaternary nitrogen-containing cellulose ether). The results are also shown in Table 1.

Table 1 Example 2 Molding was performed in the same manner as in Example 1 using the following formulation, and the porosity, breaking strength, and softening rate in water of the molded product were determined. In addition, for comparison, the performance of each molded product without the additive (quaternary nitrogen-containing cellulose ether) was determined in the same manner.

The results are shown in Table 2.

Blending composition AO821% by weight Na(t 45.1
#NaHCO39 Na2CO56 Fumarujo 8 Disintegrant 10 Additive 0.5 Color/flavor 0.4

Claims (1)

[Claims] 1 (A) 5 to 40% by weight of anionic surfactant, (B
) 0.1 to 5% by weight of quaternary nitrogen-containing cellulose ether powder whose fraction passing through a 30 mesh sieve has a particle size of 70% or more; and (C) 3 to 80% by weight of chloride containing monovalent or divalent cations. Tablet detergent containing %.