JPH0776357B2 - Cleaning composition for raw feathers - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cleaning composition for raw feathers, which is excellent in degreasing power and deodorizing effect and can give a good texture to washed feathers.

(Prior art and its problems) Generally, in addition to oil-soluble stains such as wax and fats on raw feathers such as ducks, geese, ducks, swans, and chickens,
Dirt such as soil, sand, dust, excrement, blood, bacteria, and pests are attached, which cause a bad odor. Therefore,
In order to obtain feathers for use in down duvets, down pillows, downwear, etc., the dirt attached to the original feathers is thoroughly washed and removed. On the other hand, if these stains are not sufficiently removed, a foul odor is generated from the feathers, which reduces the commercial value.

In the above-described removal of dirt, first, the adhered matters such as soil, sand and dust are removed in the dry dust removing step, and then the dirt is almost completely removed by the washing and rinsing in the water washing step. The cleaning agent used in the above-mentioned water washing step is required to have sufficient degreasing power and deodorizing effect, and if this effect is insufficient, odor will remain on the feathers and the commercial value will be impaired. Examples of the above-mentioned detergent include a mixture of α-olefin sulfonate and higher alcohol or alkylphenol ethylene oxide adduct (JP-A-55-26226), α-olefin sulfonate, alkylbenzene sulfonate and ethylene oxide. Mixtures of ether type nonionic surfactants (Japanese Patent Publication No. 51-22087)
Issue bulletin).

As described above, as a conventional cleaning agent, an anion activator and a nonionic activator are mixed and used, but sufficient degreasing and deodorizing effects cannot be obtained. For this reason, there is also a method of increasing the cleaning agent temperature to improve the degreasing and deodorizing effects, but this method excessively removes the feather oil and damages the feathers in the drying step and the sorting step to commercialize it. The value will be reduced. Further, the feathers washed with the conventional cleaning agent deteriorated in texture, and thus required softening treatment after washing.

The present invention has been made in view of the above points, and can exhibit excellent degreasing power and deodorizing effect even at a normal washing temperature, and does not impair the texture of feathers after washing. The purpose is to provide a detergent composition.

(Means for Solving Problems) Therefore, the inventors of the present invention have conducted extensive studies to obtain a raw feather detergent composition having excellent degreasing power and deodorizing effect and not impairing the feeling, The inventors have found that a composition containing polyoxyethylene hydrogenated castor oil, which is a nonionic active agent, and a general nonionic active agent in a specific ratio has an excellent detergency effect, and arrived at the present invention.

That is, the present invention relates to polyoxyethylene hydrogenated castor oil represented by the general formula (I) in an amount of 20 to 80% by weight and a nonionic activator of 80 to 20% by weight.
The present invention provides a cleaning composition for raw feathers, which comprises 10% by weight.

(In the formula, the total of l, m, n, x, y, z is 10 to 200.) The polyoxyethylene hydrogenated castor oil represented by the general formula (I) is obtained by hydrogenating natural castor oil. It is a non-ionic activator obtained by addition-polymerizing ethylene oxide using an alkali catalyst after it is made into hydrogenated castor oil, and has a polyoxyethylene group added as it is in the triglyceride structure, so compared to other non-ionic activators. It has a fairly large molecular weight. Therefore, the solubilizing power of animal fats and oils in water is superior to that of other nonionic surfactants. Ethylene oxide (EO) of polyoxyethylene hydrogenated castor oil represented by general formula (I)
When the number of added moles is 10 to 200, the HLB (hydrophilic / lipophilic balance) is 11 to 18, so not only the degreasing power is particularly excellent, but also the solubilizing power of the degreased fat in water. Is particularly excellent, and the degreased fat never re-adheres to the feathers during the washing or rinsing process. If the number of moles of ethylene oxide added is less than 10, the degreasing power is excellent, but the solubilizing power is poor, and if the number of moles of ethylene oxide added exceeds 200, the hydrophilicity becomes too strong and the degreasing and solubilizing powers are increased. Both turned out to be inferior.

The type of the nonionic activator used in the present invention is not particularly limited, but for example, an ethylene oxide adduct of a higher alcohol having a linear or branched alkyl group or an alkenyl group, polyoxyethylene alkylphenyl. Examples thereof include ethers, fatty acid alkylolamides, and ethylene oxide adducts thereof.

Further, in the present invention, an alkyl or alkenyl sulphate, a linear or branched alkylbenzene sulfonate, an alkyl or alkenyl ethoxy sulphate, an olefin sulfonate, an alkane sulfonate, a saturated or unsaturated salt is used as long as the effects of the present invention are not impaired. Saturated fatty acid salt, anionic activator such as α-sulfofatty acid salt, inorganic builder such as neutral phosphate, organic builder such as sodium polyacrylate, solvent,
Common detergent ingredients such as solubilizers, fluorescent dyes, fragrances, colorants, and anti-redeposition agents can be added.

(Effects of the Invention) Feathers treated with the detergent of the present invention have a low residual fat ratio, are appropriately degreased, do not require softening treatment, and do not generate offensive odors for an extremely long time. Moreover, since the feather does not spoil the texture, its practical value is extremely high.

(Examples) Hereinafter, examples will be described in detail, but the present invention is not limited to these examples.

Example 1 Table 1 shows the results of washing raw feathers with detergents having various ratios of polyoxyethylene hydrogenated castor oil and polyoxyethylene alkyl ether nonionic activator. White goose and gray goose from China were used for the raw feathers. Washing conditions are as follows: 200g of water is added to 5g of raw feathers (bath ratio 1:40), 1.5% of the detergent composition having the composition shown in Table 1 is added to the original feathers, and the washing machine is operated at 50 ° C for 30 minutes. Cleaning was performed with a name scrabometer, manufactured by Toyo Seiki Co., Ltd.). After washing, drain the washing liquid and add 200 ml of water,
Rinse for minutes. This rinsing work is a total of 5 in the same operation.
I went there. Then, the feathers after the completion of rinsing were dried at 105 ° C. for 2 hours to evaluate the odor, and dichloromethane was used as a solvent in a Soxhlet extractor to measure the residual fat content.

The odor was evaluated by the following four-level evaluation by five panelists.

◎ Almost no feather odor ○ Feather odor is slight △ Feather odor × No change from the original feather As is clear from Table 1, 20 to 80% by weight of polyoxyethylene hydrogenated castor oil and polyoxyethylene alkyl ether When the ratio was in the range of 80 to 20% by weight, the effect of removing the feather odor was recognized. In addition, a particularly remarkable removal effect was observed when polyoxyethylene hydrogenated castor oil was 40-
60% by weight, polyoxyethylene alkyl ether 60 ~
The detergent composition was in the range of 40% by weight.

Example 2 Polyoxyethylene hydrogenated castor oil (average EO addition mole number 6
0) and various nonionic surfactants in a weight ratio of 50:50
The detergent composition according to the present invention, a detergent composition as a comparative product in which a polyoxyethylene hydrogenated castor oil and an anion activator are combined, and a comparison using an activator other than polyoxyethylene hydrogenated castor oil The white goose and the goose from China were washed under the same conditions as in Example 1 using the respective detergents as the products, and the residual fat rate, odor and texture were evaluated. The results are shown in Table 2.

The evaluation of the texture preference was made by a pair of comparisons with a standard by 10 female panelists, and scores were given according to the following evaluation levels, and judged by the total score of 10 persons.

＋2: I like it more than the standard ＋1: I like it more than the standard 0: It is equal to the standard −1: I hate it more than the standard −2: I hate it more than the standard

Claims (1)

[Claims] 1. A polyoxyethylene hydrogenated castor oil represented by the general formula (I) 20 to 80% by weight, and a nonionic activator 80 to
A cleaning composition for raw feathers, which comprises 20% by weight. (In the formula, the total of l, m, n, x, y, z is 10 to 200.)