JPH0856748A - Face mask - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a face mask with excellent acne prevention effect. [Composition] Colloidal free sulfur 0.2 to 20% by weight
A face mask comprising a cellulosic fiber contained therein.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a face mask, and more particularly to a face mask which is excellent in preventing acne.

[0002]

2. Description of the Related Art Acne, which is said to be a symbol of youth, is known to be caused by acne bacteria, and medicinal soaps and the like have been commercially available for the prevention of acne. However, although these products have a temporary effect, they do not fundamentally solve the occurrence of acne.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a face mask which is excellent in preventing acne.

[0004]

Means for Solving the Problems The present inventor has arrived at the present invention as a result of extensive studies to achieve the above-mentioned object and investigating the antibacterial property (growth preventing effect) against acne bacteria. That is, the present invention is a face mask characterized by being composed of cellulosic fibers containing 0.2 to 20% by weight of colloidal free sulfur. The contents will be described below.

In the present invention, the face mask refers to a mask which covers a part or the whole of the face. For example, the face mask is circular and has portions corresponding to the eyes, nose and mouth, or portions corresponding to the eyes and mouth. It is vacant and has a notch in the part corresponding to the nose. The shape and size of the face mask, the position and size of the vacant part, the position of the notch, and the degree of covering the face (for example, the whole face, the upper or lower half of the face, only the forehead, only the cheeks, etc.) are as desired. It may be selected appropriately.

In the present invention, the cellulosic fiber means
Linen, cotton, cupra, viscose rayon, polynosic rayon, LYOCELL; for example, Journal of the Textile Society (Fiber and Industry) Vol. 48, No. 11 (19)
92) P-584-P. Corresponding to the product name TENCEL manufactured by Courtles, Inc. described in 591. ), But particularly preferably viscose rayon, polynosic rayon, and lyocell. The single yarn denier and the fiber length (both short fibers and long fibers) are not particularly limited.

The cellulosic fiber in the present invention contains 0.2 to 20% by weight, preferably 1 to 20% by weight of colloidal free sulfur.
It is necessary to contain 10% by weight. If it is less than this value, the effect is not exerted, and if it exceeds this value, odor is generated, yarn breakage and the like occur, and fiber production becomes difficult. The method of containing colloidal free sulfur in the cellulosic fiber is a spinning stock solution containing a sulfur product and spinning, or in the post-processing, for example, cellulose in a sodium sulfide aqueous solution or sodium thiosulfate aqueous solution in which sulfur is dissolved. It is achieved by immersing the thread or cloth of the system fiber and decomposing it in an acid solution.

Further, in the cellulosic fiber of the present invention, the distribution of colloidal free sulfur is gathered at the center of the fiber cross section, and 70% or more of the total amount of sulfur is dispersed in the half of the cross section. It is preferably contained in a state. In such a case, deterioration of the fiber is less likely to occur and the effect of the present invention is excellent in sustainability. In the present invention, a face mask may be produced (generally by punching) from such a cellulosic fiber web, a nonwoven fabric, a woven / knitted fabric, or a composite thereof, but at least 10 of the fibers constituting the face mask are used. % Or more, preferably 20% or more, more preferably 50% or more
It is sufficient to occupy at least 10% by weight, and if necessary, fibers other than the cellulosic fiber of the present invention are mixed in a range of 90% by weight or less, preferably 80% by weight or less, more preferably 50% by weight or less. You may.

In the face mask of the present invention, the fibers to be mixed with the above-mentioned cellulosic fibers include hemp, cotton, cupra, viscose rayon, polynosic rayon, lyocell in addition to colloidal free sulfur, and silk and acetate. , Polyester, acrylic and the like (including synthetic fibers having improved water retention and hygroscopicity) are used. There are also methods of mixing, such as mixed spinning, mixed fiber, and mixed twisting, and laminating in a web or sheet state or in a cloth form and joining them by entanglement means such as cast flow, or knitting and weaving. Of these, a cupra long fiber non-woven fabric and a sliver or web of the above-mentioned cellulosic fibers which are laminated and entangled and joined by a cast flow are easy to prepare a face mask, and also have an extremely soft texture, which results in a face. It is particularly preferable because it is soft against the skin and good along the face so that it can be easily covered.

The face mask of the present invention exerts an anti-acne effect by coating the face alone or in a state of being impregnated with a face agent such as acne lotion and water, and leaving it for a predetermined time in that state. To do.

[0011]

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to the examples. (1) Antibacterial property In Examples, the face masks were evaluated by the method using the following strains and media. Strains and media propioni bacteria acnes
IID912 Tryptic Soy broth (Difco) Vitamin K1 meat-extract PH7.3 GAM agar medium (Nissui Pharmaceutical) PH7.3 method propioni bacteria acnes
IID912 strain to tryptic soy broth
Inoculate 10 ml of one platinum loop. It is subjected to static culture in a CO ₂ incubator at 37 ° C., 10% CO ₂ for 42 hours. The sample is placed on the center of the surface of GAM agar medium.
The indicator strain is applied to the vicinity of the sample in an L-shape and cultured under the conditions of 37 ° C., 10% CO ₂ and 78 hours. Judgment Indicator strain propioni
Lactobacillus bacteria IID912 strain
If the characters are still growing, they are considered to have no antibacterial properties (-).
When the L-shaped horizontal bar (close to the sample) is thin or disappears, it has antibacterial properties (+), and when it is shortened to the vertical bar (far from the sample), it has particularly strong antibacterial properties (++). It was judged. (2) Free sulfur analysis method The content of colloidal free sulfur in the cellulosic fiber was measured by the following method.

200 for a 500 ml gas generator
Add milliliters of water, 20 g of boric acid and 10 g of thread, boil for 1 hour while passing nitrogen gas, and after cooling, neutralize with 6N caustic soda solution using phenolphthalein as an indicator. Next, add this to 200 g / liter of sodium sulfite.
20 ml of da and 5 ml of 1 g / liter stearic acid soap are added, boiled for 3 hours while passing nitrogen gas, and after cooling, the liquid is transferred to another 500 ml beaker. Wash the thread with 100 ml of water, 40%
Add 10 ml of formalin and 20 ml of acetic acid and sodium acetate buffer. Next, concentrated acetic acid was added until pH = 4.6, 0.1 N iodine water was added in a fixed amount, and the starch was back titrated with 0.1 N sodium thiosulfate as an indicator. The above processing is performed in the same manner without inserting a thread as a blank.

Free sulfur content (%) = (A−B) × 0.0032 × 100 / g A: 0.1N—Na ₂ S ₂ O ₃ titer (blank) [milliliter] B: 0.1N -Na ₂ S ₂ O ₃ titration amount (sample) [milliliter] g: thread sampling amount (extra dry) [g]

[0014]

Example 1 An aggregate of viscose rayon filaments having a single denier of 1.5 denier was immersed in a treatment solution prepared by dissolving 3.0 g / l of sulfur in 100 g / l of sodium sulfide aqueous solution, and then, After squeezing, it was immersed in 140 g / l sulfuric acid. When no hydrogen sulfide gas was generated, the product was taken out of the liquid, repeatedly washed with water, air-dried, hot-air dried, washed with a washing machine for 1 hour, and then air-dried. The resulting aggregate of viscose rayon filaments contained colloidal free sulfur 1.
The content was 5% by weight. A sliver-processed piece of such an assembly and a cupra long-fiber non-woven fabric were laminated and entangled by a cast flow to obtain a non-woven fabric having a two-layer structure of 55 g / m ² (the ratio of the former is 30 g / m ^2). , The latter is 25 g / m ² ).

By punching out this two-layer structure nonwoven fabric, a face mask having a circular portion corresponding to the eyes and mouth and a notch corresponding to the nose was produced. As a result of evaluating the antibacterial property of this face mask, (+
It was +).

[0016]

Example 2 A face mask was prepared in the same manner as in Example 1 except that the amount of sulfur dissolved in the aqueous solution of sodium sulfide was changed to produce colloidal free sulfur. The antibacterial property was evaluated. When the content of colloidal free sulfur is 0.17% by weight, the antibacterial property is (-), and when the content is 0.23% by weight, the antibacterial property is (+) and the content is 1.0% by weight. The antibacterial property was (++).

[0017]

EFFECTS OF THE INVENTION The face mask of the present invention is effective for preventing acne by coating the face alone or in a state in which it is impregnated with a face agent such as acne lotion and water, and leaving it in that state for a predetermined time. Can be demonstrated.

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Claims (1)

[Claims] 1. A face mask comprising cellulosic fibers containing 0.2 to 20% by weight of colloidal free sulfur.