JPS6053599A - Rinsing aid - 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] The present invention relates to rinse aids.

In recent years, in the food and beverage industry such as hotels and restaurants, automatic dishwashers that can wash dishes hygienically and quickly have become rapidly popular. The characteristic of washing dishes using an automatic dishwasher is that after washing with an aqueous detergent solution containing an alkaline builder-based detergent at around 60 R, rinsing is performed with boiling water at 80 to 90 R, which also serves as heat sterilization. It is.

Generally, a rinsing aid is used in the rinsing water to speed up drying and prevent water droplets from remaining on the dishes.

Conventionally, nonionic surfactants such as polyoxyethylene-polyoxypropylene block polymers and oxyethylated alcohols have been used as rinse aids, but now safer detergents have been used. Sugar fatty acid esters, sorbitan fatty acid esters, glycerin EW fatty acid esters, and propylene glycol fatty acid esters have come to be used. However, containing these ingredients in the rinse water means that these ingredients will adhere to the dishes after drying, for example, stains with poor transparency on dishes, and stains with lost luster on dishes. do. In addition, these phenomena are not only due to the rinsing aid components remaining on the dishes, but also due to the adhesion of calcium and magnesium in the tap water, as well as food stains and detergent components mixed with the rinsing aid. It would be more reasonable to think so.

To explain in more detail the role of rinsing aids, the majority of eating and drinking utensils were originally made of hydrophilic materials such as ceramics, porcelain, and glass, with the exception of lipophilic plastic items such as polypropylene and melamine. .

If the eating and drinking utensils are thoroughly cleaned with a detergent and lipophilic stains such as oils and fats are removed from the eating utensils, the eating and drinking utensils will remain watery even if rinsed without using a rinse aid. Therefore, there should be no water droplets left on the drinking utensils after drying. However, in reality, there are cases where a small amount of dirt remains on the eating utensils, and in this case, if you rinse without using a rinse aid, the eating utensils will become splattered, water droplets will remain, and they will dry out. It takes time and water droplets stick to the surface. In this way, the role of a rinsing aid is to stop water from escaping the food and drink utensils, speed up the drying of the food and drink utensils, and
The goal is not to leave any traces of water droplets. Most of the rinse aids currently on the market fulfill these roles to varying degrees. However, as mentioned earlier, food and drink utensils rinsed using rinsing aids currently on the market have a lower clarity (in the case of cots) and gloss after drying than completely clean food and drink utensils. (for dishes) is inferior.

The inventors of the present invention conducted extensive research to develop a rinsing aid that speeds up the drying of eating and drinking utensils, does not leave behind water droplets, and does not deteriorate transparency or gloss, and as a result, HLB! The present invention has been completed based on the discovery that a rinse aid containing polyglycerin fatty acid esters 1 to 15 as essential components exhibits excellent effects that were previously unimaginable. That is, H.L.
By rinsing the eating and drinking utensils using a rinsing aid containing B3-15 polyglycerol fatty acid ester as an essential ingredient, the eating and drinking utensils will dry faster, leaving no trace of water droplets, and the eating and drinking utensils will be clean with a sense of transparency and gloss. ttI found out that there is almost no difference. It has not been known until now that polyglycerol fatty acid esters with HLB of 3 to 13 exhibit the above-mentioned excellent effects as rinse aids, and this is a serious matter. Although the mechanism is not clear, polyglycerin fatty acid esters have strong emulsifying and dispersing power as surfactants, and therefore disperse inorganic substances such as calcium and magnesium in water and emulsify organic substances such as oil stains. It is thought that this prevents it from re-adhering to the eating and drinking utensils.

Note that if rinsing is performed using a polyglycerol fatty acid ester with an HLB of less than 3, water droplets will remain on the drinking utensil. Further, when rinsing is performed using a polyglycerin fatty acid ester with an HLB of more than 13, the washing or rinsing tank becomes full of foam, which hinders work.

I('LE3~) which is an essential component of the rinse aid of the present invention
As the polyglycerin which is a constituent component of the polyglycerin fatty acid ester No. 15, the polyglycerols No. 2 to 12, such as diglycerin, triglycerin, tetraglycerin, pentaglycerin, and hexaglycerin vi-kejime, are preferred. Also, as fatty acids, caproic acid,
Caprylic acid, capric acid, lauric acid, myristic acid'
Saturated and unsaturated fatty acids of 06 to C4, such as fr and id, are preferred.

The essential component of the rinse aid of the present invention is a polyglycerin fatty acid ester with HLB 3 to 13, but depending on necessity, nonionic interfaces such as nrubitan fatty acid ester, glycerin fatty acid ester, sucrose fatty acid ester, propylene glycol fatty acid ester, etc. Activators can be added.

Furthermore, in order to improve liquid stability, ethanol,
Solubilizers such as propylene glycol, glycerin, fatty acids, etc. can also be added.

Examples and comparative examples of the present invention are shown below, but it goes without saying that the present invention is not limited to the scope of these examples.

Examples 1-9. Comparative Examples 1 to 6 Pour 60'C70t hot water into a door-type washer manufactured by Ishikawajima Harima Heavy Industries and Wash Mate 5 (manufactured by Abu Kafreenei)
was dissolved at a standard concentration of 0.2% to a concentration of 0.1%. On the other hand, Trio Rain 2F is on the all-purpose rack.
- Set 5 dirty tableware, and set 5 clean dishes.
I set the piece next to the tableware. A 45 second wash was carried out in this manner, after which rinse aids having the various compositions shown in Table 1 were applied. 8 which was melted to a temperature of 88,611 degrees.
0U, 7t of rinsing liquid was sprayed from the rinsing nozzle to rinse and dry.

During this time, the drying speed of the dishes, the gloss of the dishes after drying, the water droplets left on the tips, and the transparency were observed. The results are shown in Table 1.

(Note 1)○:? 7v Same gloss as clean tableware △° Slightly less glossy compared to clean tableware × No gloss (Note 2) ○: No water droplets at all △: 1 to 5 water droplets ×: Leaves traces of 5 or more water droplets (Note 3) ○ Has the same transparency as a clean droplet △: Compared to a clean droplet, there is a slight cloudy ×: Cloudy Kaoru Furuya, the applicant's agent whose transparency is clearly inferior to Kotup, who has a clear sense of transparency.

Claims (1)

[Claims] A rinsing aid characterized by containing a polyglycerin fatty acid ester with an HLB of 3 to 13 as an essential component.