JPH04331294A - Abrasive-containing detergent composition - Google Patents

Abstract

PURPOSE:To provide an abrasive-containing detergent composition which does not raise any problem in sewage treatment. CONSTITUTION:The abrasive contained in the title composition is composed of a biodegradable plastic which has a properly controlled granular size and is of completely degradable type. In the sewage treatment after use of the detergent, most of the abrasive with relatively large sizes can be removed in the form of a cake and its particulates slightly left behind are biodegraded completely so that it can be made harmless.

Description

[Detailed description of the invention]

0001

FIELD OF THE INVENTION This invention relates to detergent compositions containing abrasives.

0002

[Prior Art] In various factories such as printing factories and automobile maintenance shops, various surfactants are used as the main ingredient to remove grease, engine oil, tar, and other oils and printing ink and other paints that adhere to hands. Detergents are used. In addition, in order to remove stains that cannot be removed by surfactant effects alone,
Detergents containing abrasives (scrubbing materials) are used. This abrasive-containing detergent is known to have better cleaning properties than detergents that do not contain abrasives because the abrasive scrapes off dirt.

[0003] As conventional abrasive materials, powders of inorganic materials such as pearlite, alumina, and silica are often used.

However, the above-mentioned inorganic abrasives are water-insoluble and remain in a particle state indefinitely in tap water, so when they flow into drain pipes, they accumulate in the pipes and clog the water pipes. , which makes wastewater treatment difficult.

As a solution to this problem, it has been considered to use a synthetic resin that is susceptible to biological attack, that is, a biodegradable plastic, for the abrasive material. As such a compound, a compound made by adding about 10% starch to polyethylene is known, and since the starch in this compound is decomposed by microorganisms and the resin is broken into small pieces, it is thought that processing can be reduced.

However, recently there has been criticism that this type of biodegradable plastic is incompletely decomposed and parts of it that are not subject to biological attack, such as polyethylene, remain undegraded and are currently subject to material testing in the United States. The association is currently conducting an evaluation test.

[0007]

[Problems to be Solved by the Invention] As mentioned above, with conventional detergents containing biodegradable plastic as an abrasive, the decomposition of the abrasive is incomplete, and after decomposition of starch, finely divided particles remain, which can cause damage to pipes. There have been problems in that they cause clogging and migrate to sewage treatment plants, making treatment even more difficult.

That is, when finely divided plastics are introduced into a sewage treatment plant, it is difficult to form them into a cake, resulting in a large amount of plastic being left behind.

SUMMARY OF THE INVENTION Therefore, the present invention provides an abrasive-containing detergent composition that can remove many abrasives during sewage treatment and completely biodegrade the remaining abrasives to make them non-polluting. With the goal.

0010

[Means for Solving the Problems] The abrasive-containing detergent composition of the present invention that solves the above problems includes various surfactants, solvents,
It is characterized in that a detergent made of water or the like contains an abrasive made of a completely degradable biodegradable plastic that is completely biodegradable within a certain period of time, with the particle size adjusted appropriately.

[0011] The abrasive material is also characterized in that it is made of a completely degradable biodegradable plastic typified by linear polyester of 3-hydroxybutyric acid and 3-hydroxyvaleric acid.

0012

[Operation] The abrasive-containing detergent composition of the present invention is composed of a fully degradable biodegradable plastic whose particle size has been appropriately adjusted, so it can be used in most abrasives with relatively large particle sizes in sewage treatment. can be removed by turning it into a cake, and the rare particles left behind can be completely biodegraded in sewage and become non-polluting.

[0013]

[Examples] Examples of the present invention will be described below.

First, examples of the fully degradable biodegradable plastic which is the abrasive component of the present invention include linear polyesters of 3-hydroxybutyric acid and 3-hydroxyvaleric acid.

The particle size of this abrasive material is preferably 600 μm or less, more preferably about 200 to about 350 μm. Particle size is 60
If it is 0 μm or more, when used for skin cleansing, it will have a rough texture and will be difficult to decompose. A good cleaning effect can be obtained regardless of the hardness of the abrasive, but a durometer hardness of about 40 to about 60 is more preferable.

The amount of abrasive in the composition is preferably about 10% by weight or less, more preferably about 3 to about 6% by weight of the total composition. If the amount is 10% by weight or more, the roughness will increase when it comes into contact with the skin.

The composition other than the abrasive includes a surfactant, a solvent, and water. The surfactant is preferably about 15 to 50% by weight, more preferably about 20 to 35% by weight, and examples of the surfactant include polyoxyethylene alkylphenyl ether, which is a nonionic surfactant, and polyoxyethylene alkylphenyl ether, which is an anionic surfactant. Examples include sodium lauryl sulfate, and alkylbenzylmethylammonium chloride as a cationic surfactant.

[0018] Solvents are used to remove stains from paint;
0 to 30% by weight, more preferably 10 to 20% by weight. As the solvent used for this, a water-soluble polyalkylene glycol ether solvent can be used. Further, water is blended in a range of about 20 to 80% by weight.

In addition, if desired, customary auxiliaries, diluents and other additives, such as perfumes, paints, anti-tarnish agents, fungicides and the like, may be added, provided they do not impair the beneficial properties of the composition. It is possible to contain analogues of . Alkali sources and pH buffering agents such as alkali metal carbonates and bicarbonates, monoethanolamine triethanolamine, and alkali metal aqueous products can also be used.

[0020] Next, specific formulation examples will be explained.

First, four types of formulations A as shown in Table 1 below are prepared.
, B, C, and D were performed.

[0022]

[Table 1]

In Table 1, DeBasic Esters (DBE) is a solvent manufactured by Shell Chemical for removing paint and oil stains. Liponox NC-70 is a nonionic surfactant manufactured by Lion Corporation. Anhitor 2
4B is an amphoteric surfactant manufactured by Kao Soap Co., Ltd. Emar 10 is an anionic surfactant manufactured by Kao Soap Co., Ltd. Sanisol B-50 is a cationic surfactant manufactured by Kao Soap Co., Ltd. Biodegradable plastic is a linear polyester of 3-hydroxyvaleric acid and 3-hydroxybutyric acid, has an average particle size of 200 μm, a durometer hardness of 40 to 60, and is a non-polluting resin that completely decomposes in nature.

The detergent compositions obtained by these formulations A, B, C, and D are cream-like, remove stains well, have little roughness, and have good cleaning effects and cleaning sensations, and are suitable as detergents containing abrasives. It is widely available. Furthermore, if the detergent composition with the above formulation is stored in an appropriate container, it can be stored for a long period of time. After being sealed in a container, it does not deteriorate immediately unless a large amount of sterilization is added to the container.

On the other hand, each of the above detergent formulations A, B, C, D
If you dilute it 300 to 1000 times with regular sewer water and store it at room temperature for a month, the plastic filler will completely decompose. That is, when the above detergent composition is flushed into the sewer after use, plastic filler with an average particle size of 200 μm is scattered, but this filler floats and does not settle because its specific gravity is less than 1.0. So it won't clog your drain pipes. Therefore, most of the filler in this example can be removed in the form of a cake, and the fine particles that cannot be removed are completely decomposed in a few days to a week depending on their particle size and become non-polluting.

[0026] Thus, in this example, in the sewage,
We selected biodegradable plastic so that it will completely biodegrade within a week to one month for particles with a particle size of 200 μm, and in a shorter period of time for particles with a smaller size. While preventing pollution due to biodegradation, it is possible to completely decompose only the rare leftover components and make them non-polluting.

[0027]

Effects of the Invention As described above, the present invention is an abrasive-containing detergent composition characterized by using a completely degradable biodegradable plastic as an abrasive. It does not clog pipes, can be easily removed at a sewage treatment plant, and the fine particles left behind at the sewage treatment plant can be naturally decomposed, making it a non-polluting detergent.

Furthermore, since there is no problem of leaving filler particles behind, there is no restriction on the particle size of the abrasive, and by appropriately selecting the particle size of the abrasive, a product with better cleaning effects and a better cleaning sensation can be obtained. It can provide detergent.

Claims (2)

[Claims] [Claim 1] A detergent consisting of various surfactants, solvents, water, etc. contains an abrasive material made of a completely degradable biodegradable plastic that is completely biodegradable within a certain period of time, with the particle size adjusted as appropriate. An abrasive-containing detergent composition characterized by: 2. In claim 1, the abrasive comprises 3
- An abrasive-containing detergent composition comprising a completely degradable biodegradable plastic represented by a linear polyester of hydroxybutyric acid and 3-hydroxyvaleric acid.