Abstract: Disclosed herein are a bio-cellulose sheet without a supporting means, in which the bio-cellulose sheet includes coconut and contains a preservative including a plant extract, a bio-cellulose sheet product including the bio-cellulose sheet without a supporting means, and production methods thereof. The bio-cellulose sheet without a supporting means and the product including the same have a high content of a cosmetic composition, are less irritating to the skin, and are convenient to use. The use of the methods for producing the bio-cellulose sheet without a supporting means and the product including the bio-cellulose sheet results in increased efficiency and a reduced production cost.

Abstract: Disclosed herein are a bio-cellulose sheet without a supporting means, in which the bio-cellulose sheet includes coconut and contains a preservative including a plant extract, a bio-cellulose sheet product including the bio-cellulose sheet without a supporting means, and production methods thereof. The bio-cellulose sheet without a supporting means and the product including the same have a high content of a cosmetic composition, are less irritating to the skin, and are convenient to use. The use of the methods for producing the bio-cellulose sheet without a supporting means and the product including the bio-cellulose sheet results in increased efficiency and a reduced production cost.

Abstract: The present invention relates to a hydraulic solenoid valve for an automatic transmission of a vehicle, which moves an armature and a spool upward or downward by means of magnetic force so as to open/shut an inlet and an outlet, characterized in that an air gap is formed between a circumferential surface of the armature and a circumferential inner surface of the movable guide body, thereby reducing mechanical processing error or assembly error, and enhancing hydraulic performance and gear shifting performance.