JPH0371479B2 - - Google Patents

Description

[Detailed description of the invention]

FIELD OF THE INVENTION The present invention relates to cleaning compositions. More specifically, the present invention relates to a cleaning composition for sponges for seaweed dryers. [Conventional technology] Nori is one of the traditional marine products of Japan.In particular, dried seaweed is made by slurrying the seaweed using a seaweed cage made of natural materials such as reeds and bamboo leaves. A method of drying in the sun was used.
However, in recent years, with the improvement of seaweed farming technology, the production amount of seaweed has increased dramatically.
Automatic drying process for rapidly producing large quantities of dried seaweed using seaweed dryers has become possible. Also, seaweed cages used in such mechanical dryers are now made of braided synthetic resin rods instead of the natural materials mentioned above. The automatic drying process described above is carried out as follows. In other words, the drying rate of the undried seaweed that has been strained on the seaweed cage is improved before it is continuously fed into the main body of the tunnel-shaped seaweed dryer that is heated to 50 to 60°C along with the seaweed cage. In order to improve the appearance of dried seaweed after drying, it is dehydrated by being lightly pressed with a dehydrating sponge from above and below at the entrance of the dryer. The dehydrating sponge, which has repeatedly absorbed water from undried dry seaweed in this way, not only contains water, but also seaweed juice (note: water and suspended fine seaweed powder), seaweed slag (note:
Since small pieces of seaweed (small pieces of seaweed) and other foreign matter are also absorbed at the same time, simply squeezing out the water will cause the sponge to become clogged. If such a clogged sponge is continued to be used, uneven drying of the dried seaweed, poor surface finish (poor appearance), etc. will occur, and the quality of the dried seaweed product will deteriorate. Incidentally, the material of such a dehydrating sponge is a foam having open cells, such as polyurethane or polyvinyl formal. Conventionally, as a method for regenerating (cleaning) a clogged sponge as described above, the sponge is massaged using water, a neutral detergent, or water in which sodium hypochlorite is dissolved, and then the surface is rubbed. A washing method was used. However, water as a cleaning agent has insufficient cleaning power, and although neutral detergent solutions have cleaning power, they lack the power to break down seaweed scum and other foreign substances and eliminate clogging, and conversely, Sodium chlorate solution has the power to decompose seaweed slag, etc., but it lacks deep cleaning power.
Furthermore, it is undesirable because it is corrosive to drying equipment. The following two points are additionally required as a cleaning agent for cleaning water for clogged sponges. That is,
Since the moisture removed from the undried dry seaweed is seawater during the winter, and the water for cleaning sponges is used in a similar environment, it must be easily dissolved to the required concentration at a water temperature of about 5°C; Also, since dried seaweed is a food product, it is non-toxic. [Object of the Invention] The present inventors have conducted intensive research on the above-mentioned technical problems related to cleaning agents for water for cleaning clogged sponges.
As a result, sodium carbonate/hydrogen peroxide compound was used as the cleaning agent.
2Na ₂ CO ₃・3H ₂ O ₂ (sometimes referred to as SPC)
The present invention was completed based on the knowledge that all of the above-mentioned problems can be solved by using a composition in which a surfactant is combined with a surfactant. As is clear from the above description, an object of the present invention is to provide a novel sponge cleaning composition for drying seaweed. Another object is to provide a method for cleaning (removal of clogging) the sponge using the aqueous solution of the composition. Other purposes will become clear from the description below. The present invention has the following main configuration (1) and embodiment configurations (2) and (3). (1) A cleaning composition for a sponge for a seaweed dryer, characterized by containing a sodium carbonate/hydrogen peroxide compound and a surfactant as active ingredients. (2) As a surfactant, oxyethylene oxypropylene copolymer, linear alkylbenzene sulfonate, sorbitan monofatty acid ester, alkyldimethylchlorobenzyl ammonium,
The composition according to item 1 above, which uses one or more compounds selected from chloride, alkylphenol polyoxyethylene ether, or glycerin fatty acid ester. (3) Sodium carbonate/hydrogen peroxide compound 1-99.9
% and surfactant from 0.1 to 99% by weight. The configuration and effects of the present invention will be explained in detail below. The sodium carbonate/hydrogen peroxide compound, which is the main component of the composition of the present invention, is industrially a compound obtained by reacting soda ash and hydrogen peroxide (commonly known as soda percarbonate), and is a compound obtained by reacting soda ash and hydrogen peroxide. It is used as a bleaching agent. Its solubility (g/100g water) is 12/5℃, 14/20
℃, so it has sufficient solubility for the purposes of the present invention. The proportion of SPC used in the composition of the present invention is not limited, but is 1 to 99.9% by weight, preferably 10 to 95%, based on the total amount of SPC and surfactant. Although the mixing with the surfactant can be done in advance, it is preferable to mix it with the surfactant when it is dissolved in water or in water. The concentration of SPC in the water for cleaning a clogged sponge according to the present invention is, but not limited to, 0.1 to 10% by weight, preferably 0.5 to 5% by weight. If it is less than 0.1% by weight, the effect of clogging removal is poor, and if it is less than 10% by weight,
It is uneconomical to use it in excess of 20% because there is no particular improvement in effectiveness. The surfactant, which is another active ingredient in the composition of the present invention, is selected from those that have the above-mentioned ability to penetrate into the inside of the clogged sponge, have dispersion or solubilization ability for the seaweed suspension, and are less toxic. be done. Functionally, any of anionic, cationic, amphoteric and nonionic types can be used. The proportion of the surfactant used in the composition of the present invention is also not limited. However, usually 0.1 to 99.9% by weight of the total amount of SPC and the surfactant,
Preferably it is 0.5-20%. The method of mixing with SPC is as described above. The concentration of the surfactant in the water for cleaning a clogged sponge according to the present invention is not limited, but is 0.01 to 10% by weight, preferably 0.05 to 5% by weight. If it is less than 0.01% by weight, the effect of eliminating clogging is poor, and if it is used in excess of 10% by weight, there is no particular improvement in the effect, which is uneconomical. Specific examples of surfactants that can be preferably used in the present invention include oxyethylene oxypropylene copolymer (Pluronic type), linear alkylbenzene sulfonate, sorbitan monofatty acid ester, alkyl dimethylchlorobenzyl ammonium chloride, and alkylphenol. Examples include polyoxyethylene ether and glycerin fatty acid ester. Two or more of these surfactants may be used in combination as long as they do not inhibit the effect of combined use with SPC, that is, the synergistic effect described below. The activator and the above-mentioned SPC can be mixed directly, but preferably, an appropriate amount of sodium carbonate, acidic sodium carbonate, etc. is added in advance to prevent decomposition of the SPC during the period after mixing and before use. Can be mixed with SPC after mixing with
Even with such a composition, there is no difference in the effect of the product of the present invention. A characteristic effect of the composition of the present invention is that the combined use of SPC and a surfactant dramatically improves the detergency of cleaning water using the composition compared to conventional ones. Therefore, with the cleaning power of conventional detergents, the continuous use of a dehydrating sponge in a seaweed dryer is limited to 1 to 3 days, provided that it is thoroughly cleaned after clogging (removal of clogging). Assuming that the product of the present invention is used, it can withstand continuous use for one to two weeks or more. The above facts are not just about saving labor by reducing the number of times you wash the sponge;
This contributes to extending the service life of the sponge, improving the dehydration rate of undried seaweed (on the seaweed cage), and even improving the drying rate. The present invention will be explained below with reference to Examples. Examples 1 to 3, Comparative Examples 1 to 5 A 2% solution of the ingredients listed in the table was prepared, and a vinylon sponge was used continuously for one week. After soaking at 5 to 10°C for 10 hours, the sponge was thoroughly washed with water to clean the exterior and cut interior. The degree was observed.

[Table] Examples 4 to 6, Comparative Examples 6 to 8 After making a premix of soda carbonate (light ash) and a surfactant, a detergent with the ingredients shown in the table was made, a 3% solution of this was made, and it was used continuously for one week. The vinylon sponge used was soaked for 10 hours at 5 to 10°C, then thoroughly washed with water, and the external appearance and the degree of cleaning of the cut interior were observed.

[Table] The evaluation method is the same as the table.

Claims (1)

[Scope of Claims] 1. A cleaning composition for a sponge for a seaweed dryer, characterized by containing a sodium carbonate/hydrogen peroxide compound and a surfactant as active ingredients. 2. One or more surfactants selected from oxyethylene oxypropylene copolymer, linear alkylbenzene sulfonate, sorbitan monofatty acid ester, alkyldimethylchlorobenzyl ammonium chloride, alkylphenol polyoxyethylene ether, or glycerin fatty acid ester. A composition according to claim 1 using the compound. 3 Sodium carbonate/hydrogen peroxide compound 1-99.9
% by weight and 0.1-99% by weight of surfactant.