Skin care goods and production method thereof

The present invention relates to a skin care goods utilizing nanofiber. The term “skin care” used in the present invention is to make the entire skin of the body clean and refreshed, and the “skin care goods” is a goods generally used for that purpose.

It is very important to remove wastes such as cosmetics and sebum effectively during face wash for preservation and promotion of skin health and for prevention, for example, of acne and pimple. However, it is quite difficult to remove the wastes present in the depth of the wrinkles and pores of the skin simply by normal face wash. In addition, although “waterproof cosmetic preparations” and “waterproof sunscreens”, which were developed along with the recent progress of production technology, have advantages in durability and effectiveness, they also have a problem in removal during face wash and cleansing. There are many cleansing lotions developed for removal of these cosmetic preparations, but it is still practically difficult even now to remove the cosmetic preparations and sebum stains in the pores even with an cleansing oil that is regarded most effective in cleansing action. In addition, there are recently in the market many cosmetic preparations that are applied not only on the face but also on the entire body, especially on the legs and the breast for attractiveness, and these products too have the same problem.

On the other hand, generally known is use of a skin care goods employing ultrafine fiber, for example partially during face wash, as a means of increasing cleaning efficiency.

For example, a skin care goods employing an ultrafine fiber having a fineness of 0.001 to 1 dtex is disclosed (e.g., Patent Document 1).

However, the cleansing effect thereof is based on the fine foams generated by a soap solution passing through the fine spaces among the ultrafine fibers (see, e.g., Patent Document 1, paragraph number 0020), and the goods is still insufficient in removing highly persistent cosmetic preparation and others completely.

Also disclosed is a skin care goods that wipes off dirt and old cuticle directly with an ultrafine fiber having a fineness of 0.001 to 1 dtex (e.g., Patent Documents 2 and 3). However, such a method of wiping off dirt and old horny layer by rubbing the skin directly with an ultrafine fiber having a fineness of 0.001 to 1 dtex imposes excessive stimulus and friction on the skin, causing concern about possibly skin troubles such as chromatosis, cuticle thickening, as well as frictional melanoderma in some cases.

As described above, there is still no skin care goods that is low irritative to the skin and superior in wiping efficiency of the dirt in the depth of the pores, and thus, there is an urgent need currently for prompt development thereof.

Patent Document 1: Japanese Unexamined Patent Publication No. 2004-332149

Patent Document 2: Japanese Unexamined Patent Publication No. 2004-329628

Patent Document 3: Japanese Registered Utility Model No. 3100954

Patent Document 4: Japanese Unexamined Patent Publication No. 2005-330637

An object of the present invention, which was made under the circumstances above to solve the problems above in traditional technology, is to prove a skin care goods that is low irritant to the skin and superior in wiping efficiency of the dirt in the sulcus cutis and pores of the skin.

The present invention, which solved the problems above, has the following aspects:

1. A skin care goods of a pile fabric, the pile fabric comprising pile yarns of nanofibers of thermoplastic polymer having a number-average monofilament fineness of 1×10⁻⁸ to 2.2×10⁻³ dtex and ground yarns.
2. The skin care goods according to Aspect 1, wherein the thermoplastic polymer is nylon.
3. The skin care goods according to Aspect 1 or 2, wherein the number-average monofilament fineness of the nanofiber is 4×10⁻⁴ dtex or less.

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