JPH0621046B2 - Talc powder composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to talc compositions. More specifically, the present invention relates to a talc powder composition (hereinafter simply referred to as "talc composition") having improved skin water loss-delaying properties and less dust that can be inhaled by respiration after being airborne. .

High quality talc has been applied to the skin in powder form for many years. Finely ground powdery talc is well suited for this purpose. Finely ground talc
As described above, it has been widely used in the field of the cosmetics industry or as a powder for protecting the weak skin of infants and young children from sores and other inflammations caused by diapers and moist clothing.

While many good talc compositions are commercially available,
Many attempts continue to be made to develop further improved compositions. For example, US Pat. Nos. 3,102,855, 3,133,866, 3,684,197, and 3,801,709,
See ibid. 4,185,086.

It has also been considered desirable in any composition applied to the skin to prevent and delay the loss of water vapor through the skin due to some barrier effect. A large number of compositions and additives have been proposed in the literature for this purpose and show different effects.

In recent years, there has also been debate and interest in the use of these compositions, which, in use, can cause airborne dust to be inhaled by breathing. Very few, if any, definite data are available on the effects of dust inhaled by breathing out of talc compositions. However, it is a matter of course that a small amount of such dust is a desirable characteristic. The talc composition of this invention achieves these two desirable properties without introducing any other undesirable properties.

Commercial powder products include talc, magnesium carbonate, petrolatum, petroleum, kaolin, fragrances, calcium silicate and methicone as ingredients.
icone), but none of the desirable properties mentioned above are discussed.

It is an object of this invention to provide an improved talc composition.

Another object of this invention is to provide a talc composition having improved skin water loss delaying properties.

Another object of the present invention is to provide a talc composition which has a small amount of dust which can be inhaled by respiration while flying in the air.

Other objects of the invention will be explained in or will become apparent from the following descriptive description of the invention.

The above objects, other features and advantages of the present invention are achieved by a composition comprising talc as a main component, petrolatum as a minor component and an appropriate amount of a desired perfume.

This invention relates to talc compositions comprising talc, about 0.5-1.5 petrolatum and about 0.01-1.00% perfume.

The talc used in this invention is Cosmetic Toiletry an
It is a cosmetic grade talc that conforms to the specifications of the d Fragrance Association, Inc. Such talc is an essentially white, odorless fine powder obtained by grinding naturally occurring rock minerals, which typically has the structural formula Mg ₆ (Si
90% magnesium silicate hydrate with ₈ O ₂₀ ) ・ (OH) ₄
And calcite, chlorite, dolomite
e), kaolin, and the residual amount of minerals that are naturally mixed such as the magnesite (magnesite) and the like, and does not contain asbestos ore. Talc is about 89.00 to 9% of the total composition.
Used at 9.74% by weight.

The petrolatum used in the present invention is of USP grade conforming to the CTFA specifications. Such petrolatum is also known as mineral fat,
Known as white petrolatum, petroleum jelly or mineral jelly, colorless or amber translucent semi-solid amorphous substance whose hardness changes with temperature Is. 0.815 at 60 ° C
It has a specific gravity in the range of ~ 0.880.

Petrolatum is used at about 0.5-1.5% by weight of the total composition. When petrolatum was used in an amount less than about 0.25% by weight of the total composition, it was industrially infeasible to uniformly mix such a small amount of petrolatum in the talc substance, so the effect of using petrolatum Will not be clear. On the contrary, if more than about 10% by weight of the total composition of petrolatum is used, processing difficulties will occur. Even when petrolatum is used in an amount of about 5 to 10% by weight of the total composition, the dispersion cannot be performed well by the ordinary sprinkling coating method, and another coating means such as coating with a puff or stick (stick) or other preparation means is used. May need. The range of the above addition amount is the United S
According to the tates Standard Sieve Series, the appropriate range is based on the case of using cosmetic grade talc crushed to a size of 200 mesh, finer than 200 mesh,
For example, in the case of talc crushed to 325 mesh or 400 mesh, the lower limit of the amount of petrolatum added is higher, and vice versa. For example, in the case of talc of 100 or 80 mesh, the upper limit of the added amount becomes lower. Ah

The perfume used in this invention can be any commercially available perfume that imparts the fragrance desired by the person formulating the talc composition. Commercially available fragrances are a mixture of numerous components, all of which contribute to the characteristic aroma of the mixture. In order to obtain the desired aroma, the proportions of the components may be varied, or some components may be added or some components may be omitted.

Examples of typical perfume ingredients that are formulated to generate a pleasant aroma when used in body powders are:
Lemon oil, musk ketone, ionone, diphenyl oxide, terpeneless cedarwood oil, gelnyl acetate; Iran / Iran oil; cedolyl acetate, isoeugenol; cinnam alcohol, auranthol , Methyl atlanilate; vanillin, bergamot oil, eugenol; cananga oil; citral; tetrahydrolinarool; pachiyuri oil, methylisoeugenol; hexylcinnamaldehyde;
Resil oil-banum, fir resin balsam; musk aubrette, Peruvian resin balsam; Viyakudan oil, geraniol; terpenyl acetate, benzylisoeugenol, copaiba oil; nutmeg oil , Rhodinol; diphenylmethane; hydroxycitronellal; methylbenzoate; benzylpropionate; palmarose oil; orange oil, geranium oil; methylgammaionone; lavender oil.

Perfumes are used at about 0.01-1.0% by weight of the total composition, preferably about 0.1-0.3%. When used in amounts greater than about 1.0% by weight, the aroma is initially too strong and falls off quickly. On the other hand, if less than 0.01% by weight of fragrance is used, the person using the composition will not feel the fragrance.

The compositions of this invention can be made by known mixing or compounding methods. For example, a part of talc is mixed with the total amount of petrolatum, mixed well to form a premix, and a fragrance is mixed in the premix, and then the remaining amount of talc is added to obtain a desired composition. The resulting talc composition has the property of delaying skin water loss and has a small amount of dust that can be inhaled by breathing by scattering in the air.

Specific examples of talc compositions made in accordance with this invention are provided in the Examples below. However, the present invention is not limited to the scope described in the individual embodiments,
It will be understood that it has the scope defined in the claims.

Example 1 A talc composition was prepared as follows. 10 parts by weight of molten petrolatum was slowly added to 90 parts by weight of talc while stirring at high speed in a Waring blender to form a premix. After the addition was complete, stirring was continued for 2 minutes to ensure mixing. 8.8 on the obtained premix
Add 1 part by weight of fragrance with stirring, then add 400 parts
Talc was added to 0 part and the resulting mixture was mixed for 5 minutes in a V-blender containing a high speed intensifier bar to form the desired product.

The composition of the obtained talc consisted of the following compositions:

Example 2 The following experiment was conducted to demonstrate that a talc composition made in accordance with this invention has improved skin water loss delaying properties.

A talc composition was prepared according to the method of Example 1 to give Composition A.
And And four other talc compositions, composition B,
For C, D and E, the petrolatum content is 0.50%, 1.00 respectively
%, 2.00% and 5.00% except that they were made in exactly the same way. The sixth talc composition, Composition F, was made exactly the same except that petrolatum was not used.

These talc compositions were tested in the following way. The neonatal mouse stratum corneum was tested for membrane diffusion test (membrane dif
It was placed on a commercially available standard diffusion cell for performing a fusion test). The skin was exposed to a standard soap solution and washed under an environment similar to the bathing conditions of an actual infant. 0.5 g of distilled water was placed in the cell below the skin layer and 0.5 g of the test composition was rubbed on the skin surface. The excess amount, that is, the amount that did not adhere was set aside. Record the first weight for another 24 hours,
It was weighed at 48 hours and 72 hours thereby to calculate the average loss of water (mg number of skin 1 cm ³ per hour). All tests were performed under 0% relative humidity. This method determined the rate of water vapor loss from the skin surface.

The test results are shown in Table 1 below.

These results clearly show that the compositions of the invention containing petrolatum dramatically reduce the rate of water loss from the skin.

Example 3 The following experiment was conducted to show that the talc composition made in accordance with the present invention has the improved property of less airborne dust and inhalation of dust. 1/16 inch (1.59 mm) diameter spreading hole or 1 / diameter
9 ounces with 8 inch (3.18 mm) spreading holes
About half the powder was placed in a container having a spraying device on the upper part of g), and this was fastened with a mechanical fastener and shaken vertically at a constant speed to spray about 1.5 g of the powder. This shaker is placed in a sealed tester of 50 cm x 45 cm x 56 cm (height) so that all the scattered dust is trapped inside the device and is rapidly dispersed and uniformized by a small stirring blade. did. The scattered dust was sampled near the center of the tester, operating at a flow rate of 1.71 / min with a 10 mm nylon cyclone 25 cm from the shaker and 4 cm below the shaker. Cyclone separates dust of the size inhaled by breathing, and this is separated into Thermo Systems, Inc.Mode.
l No.3210A quartz crystal mass monitor
s monitor) and weighed to determine the average concentration mg / M ^{3 of} dust scattered in the air and inhaled by breathing.
The average concentration of dust scattered in the air and inhaled by breathing during the first 2 minutes after shaking was measured and recorded.

Talc composition A, B, C, D, E made in Example 2
And F were mixed on the same day and the above test was carried out for 5 days, and the results shown in Table 2 were obtained.

These results clearly show that the composition of the present invention relatively reduces the amount of dust that can be dispersed in the air and inhaled by breathing.

The first and second results show that particularly remarkable results are obtained when petrolatum is present in an amount of about 0.5 to 1.5 parts by weight based on the total weight of the composition.

Although not specifically listed, several other aspects and embodiments of this invention will be apparent to those skilled in the art. All such aspects and embodiments are possible without departing from the spirit and scope of the invention as defined in the claims.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jiyong Jei Matsuko-Mask United States New Jersey State Lingoz Box 376 Ardee-1 (72) Inventor Robert S. Russell United States New Jersey, South Liver Darrow Street 72 (56) References JP-A-54-86633 (JP, A) JP-A-52-122639 (JP, A) Okuda "The Latest Cosmetic Chemistry" written by Hiroshi Shoten (Sho 44) P. 281-282 Product Knowledge Series "Practical Knowledge of Cosmetics" Toyo Keizai Shinposha P. 123 Takeo Tamura “Cosmetics Science” Japan Hair Chemistry Association (1976) P. 397-398 Hirota, Hiroshi "Fats and Surfactants for Cosmetics," Shokobo (Sho 45) P. 100-103

Claims (2)

[Claims] 1. A talc powder consisting essentially of petrolatum and a fragrance, the petrolatum being 0.5 relative to the total weight of the composition.
A talc powder composition present at -1.5% by weight. 2. The talc powder composition according to claim 1, wherein the fragrance is 0.10 to 10% with respect to the total weight of the composition.
A composition present at 0.30% by weight.