JPS5817800B2 - Solid or semi-solid stain remover composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solid or semi-solid stain remover composition having a specified composition and content of a gelling agent.

The trick to removing stains from carpets, right walls, upholstery fabrics, etc. is to blot the stains as quickly as possible with tissue paper, etc., and then shampoo in the usual way.

However, as time passes, stains become increasingly difficult to remove with shampoo, and can no longer be removed without the use of stain removers.

Conventionally used liquid stain removers inevitably over-wet the items to be washed, causing the dissolved stain to form a ring and potentially spread.

Furthermore, such stain removers have the disadvantage of penetrating into the substrate of the item being washed and dissolving the adhesive used for the backing of carpets, etc. Therefore, stain removal requires a great deal of skill.

Therefore, it has been found that the use of a solid or semi-solid stain remover made by gelatinizing a liquid stain remover can eliminate the above-mentioned disadvantages and bring about the following advantages.

That is, by making it solid or semi-solid, it becomes easier to handle and carry, and it is also possible to apply the stain remover to stubborn areas.

Moreover, since it does not penetrate into the base fabric, it does not damage the adhesive, and the stain can be easily removed by wiping it with a cloth dampened with water.

However, when using a solid or semi-solid stain remover using only sodium stearate soap or hardened beef tallow fatty acid soda soap, which are commonly used as gelling agents,
If you apply it to the stained area and wipe it with a damp cloth to remove the stain, the solubility of sodium stearate soap or hydrogenated beef tallow fatty acid soda soap in water at room temperature is extremely low, so these soaps will remain white on the base fabric. Furthermore, it is necessary to wipe it off with a cloth moistened with boiling water.The present inventors used hydrogenated beef tallow fatty acid or industrial stearic acid, saturated coconut fatty acid, lauric acid with a purity of 70% or more, and purity 8.
By using a soda salt of mixed saturated fatty acid obtained by adding 5 to 70% of one or more types of myristic acid of 0% or more to the hardened beef tallow fatty acid or the industrial stearic acid as a gelling agent, We have succeeded in producing a stain remover composition that is easily soluble in water at room temperature, serves the purpose of rinsing, is easy to wipe off, the gelling agent itself contributes to cleaning power, and leaves no residue.

The stain remover in the composition may be a commercially available stain remover or one containing a surfactant and special solvent for removing oily stains, an alkali builder, an abrasive, an enzyme agent, etc. to enhance cleaning power, and an ink. The stain remover of the present invention is made of a wide variety of stain remover components, including a bleaching agent for decolorizing colored objects, etc., and is made solid or semi-solid by adding the above-mentioned gelling agent to the stain remover. A composition can be manufactured.

The components of the gelling agent contained in the composition of the present invention, such as hardened beef tallow fatty acid, coconut fatty acid, lauric acid with a purity of 70% or more, and myristic acid with a purity of 80% or more, are produced by conventional methods and are commercially available in large quantities. Something.

You can use these.

Although industrial stearic acid is commercially available with various purity levels, it is preferred that the purity of the stearic acid in the composition of the present invention be 40% or higher.

The composition of the present invention is manufactured by sufficiently mixing the necessary components, and depending on the amounts and properties of those components, the composition may be dissolved, heated, or
A solid or semi-solid composition can be prepared by selecting means such as mixing, stirring, and cooling.

The following examples show the method for producing the composition of the present invention and the results of comparing the effects of the composition of the present invention and a control composition.

Examples Stain remover compositions 1 to 5' with various compositions as shown in Table 1
It was created.

Samples 1, 2, 3, 4, and 5 contain the mixed saturated fatty acid soda soap of the present invention, i.e., hardened beef tallow fatty acid or industrial stearic acid, as a gelling agent, coconut fatty acid, lauric acid with a purity factor of 70 or higher, and purity 80%. One or more of the above myristic acids are added to the hydrogenated beef tallow fatty acid or industrial stearic acid at 5%
Using a mixed saturated fatty acid soda soap obtained by adding ~70%, on the other hand, samples 1/, 2/, 3/, 4/
, 5/ is a solid stain remover composition using only hydrogenated tallow fatty acid or industrial stearic acid soda soap and blending these with the same liquid stain remover.

Furthermore, Table 1 lists general commercial products as samples 6 and 7,
Comparative cleaning tests were conducted on all of these samples, and the condition of the substrate after cleaning was observed.

The results are shown in Table 2. All compositions 1 to 5' shown in Table 1 are prepared by first heating and dissolving the gelling agent, then adding the stain remover component to the gel, stirring thoroughly, and cooling to room temperature. All of them gel and exhibit a solid or semi-solid state.

At this time, it is particularly important to adjust the melting point of the mixed saturated fatty acid to 40 to 50°C.

When considering commercialization, a stick-like product can be obtained by pouring the stain remover composition before gelation into a suitable container with a closed lid and cooling it to room temperature.

Containers whose insertion and removal are adjusted using screws attached to the container are convenient to use and can prevent the solvent from volatilizing.

A: Hydrogenated tallow fatty acid or industrial stearic acid soda soap.

B: Coconut fatty acid, lauric acid with a purity of 70% or more, purity 8
Soda soap containing one or more types of misty phosphoric acid.

C: Composition component is surfactant (LA-8Na) 40
%, sodium stearate soap 20%, water 40%.

D: Composition ingredients are surfactant (fatty acid triethanolamine soap) 3, isopropyl alcohol 5%, 25'%
Ammonia water section 1, water section 91.

Softanol 90: Manufactured by Nippon Shokubai Kagaku Kogyo Co., Ltd., polyoxyethylene alkyl ether (Note) Excellent: The stain is completely removed, Good: The stain is not completely removed if you look carefully. Acceptable: Most of the stain is removed. Samples 1, 2, 3, 4, and 5, which are compositions of the present invention, cannot be removed and require reprocessing. Samples 1/, 2/ without agent.

Compared to 3/, 4/, and 5' as well as commercially available solid and liquid stain removers 6 and 7, it was found to be more effective in cleaning various stains and in terms of gelling agent residue after rinsing. .

Claims (1)

[Claims] 1 Add one or more of the following to the hydrogenated beef tallow fatty acid or industrial stearic acid: saturated coconut fatty acid, lauric acid with a purity of 70% or more, myristic acid with a purity of 80% or more, to the hydrogenated beef tallow fatty acid or the industrial stearic acid. 5 ~ 70% mixed saturated fatty acid soda salt obtained as a gelling agent
A solid or semi-solid stain remover composition comprising 50 ml of stain remover.