JPH09111293A - Cleaning agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition containing sodium polyphosphate as an active ingredient, capable of cleaning the deep part of a sponge, having bleaching effect, hardly having leaving property to sponge, having high safety and useful for layer-drying sponge and drainboard. SOLUTION: This cleaning agent composition contains (A) about 40-80 pts.wt. sodium polyphosphate (e.g. sodium tripolyphosphate), (B) about 10-40 pts.wt. trisodium citrate and (C) about 10-30 pts.wt. sodium carbonate.hydrogen peroxide. Furthermore, when the laver-drying sponge is cleaned, stain of sponge surface is previously removed and then, preferably, the concentration of the cleaning agent composition is kept to about 2. 5-3wt.% and the liquid temperature is kept to about 40-50 deg.C and the immersing time is about 4-19hr.

Description

Detailed Description of the Invention

[0001]

[0001] The present invention relates to a cleaning composition. More specifically, it relates to a detergent composition such as dried seaweed sponge and sludge.

[0002]

BACKGROUND OF THE INVENTION Nori has long been a favorite food for Japanese people and once used to produce dry seaweed by hand, but nowadays it can be mass-produced by a fully automatic machine and its quality is not inferior. It has become a thing. In the production by this fully-automatic machine, the removal of dirt adhering to the dried seaweed sponge and the sludge is an essential condition for producing high-quality and economical dried seaweed.

[0003] When the dried seaweed sponge and sludge are dirty, "driving" or "cloudy weather" is likely to occur when the seaweed is dried, and the hygroscopicity of the sponge is further lowered, so that the subsequent drying temperature of the seaweed is increased. Must be raised and it becomes uneconomical.

It is considered that such stains can be removed even by using a general household detergent containing a surfactant or the like, but there is a problem such as the residualness of the detergent and the production of seaweed, which is a natural food. Not suitable for.

Conventionally known as detergents for dried nori sponges are neutral detergents, sodium carbonate / hydrogen peroxide or sodium hypochlorite or compositions of sodium carbonate / hydrogen peroxide and sodium ethylenediaminetetraacetate. ing.

However, although the neutral detergent has detergency,
Since it is difficult to decompose and remove dirt caused by seaweed and other foreign substances, clogging of the sponge cannot be eliminated. Also,
Although the use of a composition of sodium carbonate / hydrogen peroxide or sodium carbonate / hydrogen peroxide and sodium ethylenediaminetetraacetate has a detergency for the surface of sponge such as seaweed, it is difficult to clean the sponge deeply. is there. Further, when sodium hypochlorite is used, it has a strong bleaching action, but it has almost no detergency and is liable to cause corrosion and sponge damage.

Therefore, it has been desired to develop a cleaning agent that does not have the above-mentioned difficulties.

[0008]

DISCLOSURE OF THE INVENTION The present invention provides a detergent composition which is useful for washing dried seaweed sponge, has excellent bleaching and washing power, and is highly safe.

[0009]

Means for Solving the Problems As a result of intensive studies, the present inventors have found that by combining sodium polyphosphate, trisodium citrate, and sodium carbonate / hydrogen peroxide, it is possible to clean deep areas such as sponges. Possible,
The present invention has been completed, paying attention to the fact that it has a bleaching effect and has little persistence on sponges and the like.

That is, the present invention relates to a detergent composition containing sodium polyphosphate, trisodium citrate, and sodium carbonate / hydrogen peroxide as active ingredients.

Sodium polyphosphate, which is one of the active ingredients of the composition of the present invention, is a generic term for compounds obtained industrially by reacting phosphoric acid with sodium hydroxide. A specific example is sodium tripolyphosphate (Na ₅ P ₃ O ₁₀ ). Such sodium polyphosphate, those commercially available as food additives can be preferably used, and as such commercially available sodium polyphosphate, for example, polyposate (manufactured by Polypos Chemicals), sodium tetrapolyphosphate, Examples thereof include sodium tripolyphosphate (both manufactured by Tanabe Seiyaku Co., Ltd.) (Food and Chemicals Co., Ltd., Food Additives Handbook, 1993 edition, page 381).

Trisodium citrate, which is another active ingredient of the composition of the present invention, is used as a flavoring agent, a buffering agent, an emulsifying agent,
It is a food additive used as a stabilizer and the like (ibid., Page 24), and industrially, for example, a compound obtained by neutralizing a sodium carbonate solution with citric acid, and a commercially available product is preferably used. be able to.

The remaining active ingredient of the composition of the present invention, sodium carbonate / hydrogen peroxide, is a compound obtained industrially by reacting sodium carbonate with hydrogen peroxide,
Also known as sodium percarbonate. This compound is used as a bleaching agent (Chemical Industry Daily, 12695).
Chemical products of 1995, pp. 181-182), sodium carbonate used as a food additive as soon as it dissolves in water (Food and Chemicals Co., Food Additive Handbook, 1993 version, 3).
68) and hydrogen peroxide (ibid., Page 343).

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The method for preparing the detergent composition of the present invention is the same as the method for producing an ordinary detergent and is not particularly limited, and the above-mentioned three components (powder or granules) are used. It may be mixed appropriately.

The proportion of each component in the detergent composition of the present invention is about 40 parts by weight to about 80 parts by weight sodium polyphosphate.
A combination of 10 parts by weight, about 10 parts by weight to about 40 parts by weight of trisodium citrate, and about 10 parts by weight to about 40 parts by weight of sodium carbonate / hydrogen peroxide is particularly preferable. A combination of 20 parts by weight of sodium and 20 parts by weight of sodium carbonate / hydrogen peroxide is preferred.

To wash the dried laver sponge using the detergent composition of the present invention, for example, the detergent composition is dissolved in water or warm water to prepare a cleaning solution, and the sponge is immersed for an appropriate time and then washed with water. It can be implemented by

In this case, in order to enhance the cleaning effect, it is better to lightly remove the dirt on the surface of the dried seaweed sponge by washing it with water, and it is preferable to squeeze the sponge before dipping in the cleaning liquid.

It is effective that the cleaning liquid is prepared immediately before use, and its concentration is preferably about 2% to about 5%, more preferably about 2.5% to about 3%. The temperature of the cleaning liquid is not particularly limited as long as it is a temperature at which the cleaning composition of the present invention dissolves, but is usually preferably about 10 ° C to about 60 ° C, particularly preferably about 40 ° C to about 50 ° C.

The time for immersing the sponge in the cleaning solution may be appropriately set depending on the state of dirt and the like, and is not particularly limited, but is usually about 2 hours to about 24 hours, and particularly preferably about 4 hours to about 19 hours. .

The washing with water may be carried out until the detergent composition does not substantially remain in the sponge, and it can be sufficiently washed out by a usual washing operation using a commercially available sponge washing machine or the like.

Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.

[0022]

【Example】

Example 1 Sodium polyphosphate as a raw material (Tanabe Seiyaku Co., Ltd., trade name: sodium tripolyphosphate) 2400k
g, trisodium citrate (manufactured by Tanabe Seiyaku Co., Ltd., trade name: sodium citrate <Tanabe>) 800 kg, and sodium carbonate / hydrogen peroxide (manufactured by Nippon Peroxide Co., Ltd., trade name: PC) 800 kg are well mixed and stirred. A cleaning composition was obtained.

Experimental Example 1 As one of the main causes of soiling of dried seaweed sponge, mushrooms and the like, it is considered that sugar in seaweed reacts with calcium and magnesium, so calcium alginate is used as an experimental soil. By using the detergent composition shown in Example 1 (the detergent of the present invention) and the control detergent (sodium hypochlorite preparation, sodium carbonate / hydrogen peroxide preparation), the dissolving power was determined by the following procedure. Compared.

500 ml of 1% sodium alginate solution
Then, 1% of calcium acetate was gradually added to the mixture with stirring, and the resulting gel product was filtered through gauze to obtain a gel-like calcium alginate, which was subjected to the test. 5 g of gel-like calcium alginate (wet weight) 100 ml of the detergent composition shown in Example 1 (concentration: 2.5%), 100 ml of sodium hypochlorite preparation (concentration: 0.35 vol)
%) And sodium carbonate / hydrogen peroxide preparation 100
Add 10 ml with stirring (concentration: 2.5%).
The solubility was observed after minutes, 20 minutes and 60 minutes. As a result, in the detergent composition shown in Example 1, dissolution started immediately after addition of gel-like calcium alginate and 60% after addition.
After the minute, all of them dissolved completely, but the control detergent hardly changed even 60 minutes after the addition, and gelled calcium alginate was not dissolved.

Experimental Example 2 It is considered that one of the main causes of the loss of elasticity of dried laver sponge is that the reaction products such as sugar and calcium and magnesium in laver remain inside the sponge. , The detergent composition shown in Example 1 using calcium alginate as an experimental one (the detergent of the present invention)
And a control detergent (sodium hypochlorite preparation, sodium carbonate / hydrogen peroxide preparation) were used to compare the elasticity after washing with a sensory test in the following procedure.

Nori dried sponge (80 × 60 × 24m
m, material: urethane, made by Bridgestone) was impregnated with a 1% sodium alginate solution, rinsed the surface of the sponge with running water, further impregnated with a 1% calcium acetate solution, and rinsed the surface of the sponge with running water. This operation was repeated twice to produce calcium alginate in the sponge to obtain a test sponge. As shown in Table 1, the test sponge was dipped in 400 ml of the cleaning composition shown in Example 1 and 400 ml of the control cleaning agent at room temperature for 4 hours or 19 hours, and then the sponge washing machine Mangle (MO) was used.
DEL No. VPM-1A, manufactured by Tsujii Doki Co., Ltd.), the dehydration rate was 30%, the running water rate was 4 L / min, the rinsing frequency was 10 times, and the elasticity was judged by a sensory test (the sponge containing calcium alginate was considered to be hard, Elasticity was judged by pushing with a finger, based on the criterion that a sponge that does not contain is soft.) The results are as shown in Table 1.
It was found that when the detergent composition shown in Example 1 was used, the elasticity of the sponge was clearly restored as compared with the control detergent.

[0027]

[Table 1]

Experimental Example 3 0.5 kg of the cleaning composition shown in Example 1 was dissolved in 20 L of tap water having a water temperature of 40 ° C., and the cleaning liquid was dried with sponge (240 × 240 × 24 m) of seaweed, which was heavily contaminated with diatoms.
m, material: urethane, made from Bridgestone), soaked 10 sheets for 2 hours, and then sponge washing machine for dehydration (Nichimo Co., Ltd.)
Manufactured by SCM-F6 type). As a result of this washing operation, most of the dirt on the sponge surface was removed.
In addition, since the sponge became softer than before cleaning, the internal stains were sufficiently removed.

Experimental Example 4 6% of sodium hypochlorite was added to 20 L of tap water having a water temperature of 25 ° C.
Dissolve 70 ml of the preparation and soak 6 pieces of sponge (240 x 240 x 24 mm, material: urethane, made by Bridgestone) that is heavily soiled by seaweed for 24 hours, and then dehydrate sponge washing machine (Nichimo Co., Ltd., SCM-F6 type) ) Was used to rinse. Furthermore, Example 1 was added to 80 L of tap water having a water temperature of 24 ° C.
2 kg of the detergent composition shown in 1 above was dissolved, and the sponge after the washing was immersed in the solution for 4 hours, and then rinsed using the dehydration sponge washing machine. As a result, when the cleaning composition of Example 1 was used for cleaning, the sponge became even whiter than when only sodium hypochlorite was used as the cleaning agent.

Experimental Example 5 The detergent composition shown in Example 1 was dissolved in tap water having a water temperature of 50 ° C. to a concentration of 2.5%, and dried laver sponge (80
X60x24mm, material: urethane, made by Bridgestone)
Was immersed at room temperature for 4 hours. Next, while rinsing the sponge soaked in the cleaning solution with running water (the time required for one rinse is about 15 seconds), Mangle (M
ODEL No. VPM-1A, made by Tsujii Doki Co., Ltd.), then stop the water and collect the waste water by the rinsing operation. This operation was performed four times in total, and the residual concentration of the detergent composition in the waste water (total alkalinity (Na ₂ O%) in the waste water) in each operation was measured. Table 2 shows the measurement results.
As is clear from Table 2, it can be seen that the detergent composition in the waste liquid is below the detection limit by a simple rinsing operation.

[0031]

[Table 2]

Experimental Example 6 2 kg of the cleaning composition shown in Example 1 was dissolved in 80 L of tap water having a water temperature of 24 ° C., and sponge for laver was used for 4 hours or 1 hour.
After soaking for 9 hours, a rinsing operation was performed using a dehydration sponge washing machine (Nichimo Co., Ltd., SCM-F6 type). The residual concentration of the detergent composition in the wastewater discharged from this rinsing operation (total alkalinity in the wastewater (Na ₂ O
%)) Was measured over time. The measurement results are shown in Table 3. As is clear from Table 3, it can be seen that the cleaning composition in the rinsing waste liquid of the sponge is below the detection limit by a short rinsing operation regardless of the immersion time.

[0033]

[Table 3]

Experimental Example 7 In the same manner as in Experimental Example 5, the hydrogen peroxide concentration (ppm) in the wastewater during the sponge rinsing operation was measured. The measurement results are shown in Table 4. As is clear from Table 4, it was found that the hydrogen peroxide in the sponge rinse waste liquid was below the detection limit by the simple rinsing operation.

[0035]

[Table 4]

Experimental Example 8 In the same manner as in Experimental Example 6, the hydrogen peroxide concentration (ppm) in the wastewater during the sponge rinsing operation was measured with time. Table 5 shows the measurement results. As is clear from Table 5, the hydrogen peroxide concentration in the rinsing waste liquid of the sponge became below the detection limit by the rinsing operation for a short time regardless of the immersion time.

[0037]

[Table 5]

[0038]

INDUSTRIAL APPLICABILITY The present invention has a synergistic effect of combining sodium polyphosphate, trisodium citrate and sodium carbonate / hydrogen peroxide, which enables washing to a deep portion of the sponge, has a bleaching effect, and further It is a safe cleaning composition with little residual.

Claims (3)

[Claims] 1. A detergent composition comprising sodium polyphosphate, trisodium citrate and sodium carbonate / hydrogen peroxide as active ingredients. 2. Sodium polyphosphate about 40 to about 80 parts by weight, trisodium citrate about 10 to about 4 parts by weight.
The composition of claim 1 comprising 0 parts by weight and about 10 parts by weight to about 30 parts by weight of sodium carbonate hydrogen peroxide. 3. The composition according to claim 2, comprising 60 parts by weight of sodium polyphosphate, 20 parts by weight of trisodium citrate and 20 parts by weight of sodium carbonate / hydrogen peroxide.