JPH10192185A - Wet wiper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wet viper in which soluble chitosan and mineral components having effect to atopy and rough skin are impregnated in stable form. SOLUTION: In nonwoven cloth or woven cloth of fiber material or synthetic paper having a hydrophilic property and an excellent water absorption property, quaternary ammonium salt, gluconic acid chlorohexydine, benzal conium chloride, cetyl pyridinium chloride, alkyl trimethyl ammononium chloride, or dialkyl dimethyl ammonium chloride is absorbed and fixed with equivalency. Cation components of soluble chitosan and mineral components are impregnated and fixed around an isoelectric point of the sheet base material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet wiper in which a nonwoven fabric or the like is impregnated with a cationic component such as soluble chitosan or mineral.

[0002]

2. Description of the Related Art Conventionally, a wet wiper is prepared by impregnating a sheet base made of a non-woven fabric of rayon or cotton with purified water, lotion, alcohol or the like, and sealing the container in a container or an enclosing bag. , Nursing wipers, cleaners for OA products, etc. The sheet substrate impregnated with the liquid is preferably excellent in water absorbency, and is mainly made of fibrous fibers such as rayon or cotton. As the sheet substrate, nonwoven fabric, absorbent cotton, pulp paper, or the like is used. I have. These forms of use include those obtained by folding a sheet substrate and stacking 10 to 80 sheets, or those formed into a roll. Further, as the impregnating liquid, those obtained by adding parabenzenes or quaternary ammonium salts as antibacterial agents to purified water or alcohols are used.

[0003]

2. Description of the Prior Art Soluble chitosan and various mineral components are known to be effective for atopic and rough skin and effective for skin beauty and health. When the material is impregnated with a liquid containing these components, the effective concentration of the impregnating liquid is reduced because the cationic component is adsorbed on the sheet substrate, and there is a problem that the effect on the skin cannot be obtained. The concentration of mineral components is usually calcium 10 ~
20ppm, magnesium 3-8ppm, potassium 1-3ppm, silica 15-25ppm sodium 20-25ppm, dissolved oxygen 8-12
It is common to use one with a ppm content level,
Since the trace components of the cations contained therein are adsorbed on the nonwoven fabric and the adsorption concentration of the impregnating liquid is reduced, it has not been possible to produce a wet product by the conventional technology.

[0004] Recently, the skin has been given moisturizing properties,
A technique of impregnating a soluble chitosan solution has been proposed as one which is effective for beauty and health (Japanese Patent Application Laid-Open No. 64-25821).
However, even in the case of soluble chitosan, the chitosan concentration of the chitosan-impregnated liquid has dropped to almost zero because it is adsorbed on the sheet substrate based on the cationic property of chitosan as in the case of the aqueous solution containing a mineral component. In addition, most of the compounds containing a cation component used as a herbal medicine like chitosan also had a decrease in concentration due to cation adsorption, and were not suitable as an impregnating liquid for wet products. Also, when moisture is impregnated into a non-woven fabric or paper substrate made of cellulose, the interface of the wet substrate becomes an anion due to the hydroxyl group of water, so that the cationic component in the impregnation liquid is adsorbed on the substrate. As a result, the concentration in the liquid was reduced to zero or significantly reduced, and was not suitable for use. When a liquid having a cation component such as soluble chitosan or a mineral component is impregnated into a cellulosic nonwoven fabric, the cation component is adsorbed on the nonwoven fabric, and the concentration of the chitosan or mineral component drops significantly. It was impossible to obtain the required wet wiper.

[0005]

DISCLOSURE OF THE INVENTION The present invention stabilizes the concentration of a liquid by providing in advance means for preventing a cationic component contained in an impregnating liquid such as a soluble chitosan or a mineral component from adsorbing to a nonwoven fabric. This enables the use of the impregnating liquid for a wet wiper in which the active ingredient is constant. At the time of impregnation, it is necessary to prevent the adsorption of cationic components without reducing the hydrophilicity and water absorption of the base materials such as rayon and cotton, and the adsorption preventing processing agent must not elute into the impregnation liquid. It was necessary to solve this problem.

[0006]

According to the present invention, rayon,
Soluble chitosan and / or
Or, in a wet wiper impregnated with a liquid having a cationic component of a mineral component, the sheet base material is preliminarily treated with an organosilicon quaternary ammonium salt, chlorhexidine gluconate, benzalkonium chloride, cetylpyridinidim chloride, and alkyltrimethylammonium chloride. Or one or more isoelectric point-holding components selected from dialkyldimethylammonium chloride are adsorbed and fixed to the ionic value of the base material in an equivalent amount, and then the isoelectricity of the sheet base material is fixed. This is a technique for providing a wet wiper in which the concentration of soluble chitosan and mineral components is constant by impregnating a liquid having a cationic component such as soluble chitosan and mineral components near a point.

[0007] In order to keep the sheet substrate near the isoelectric point,
Preliminarily adsorb isoelectric holding components such as organic silicon quaternary ammonium salt, chlorhexidine gluconate, benzalkonium chloride, cetylpyridinium chloride, alkyltrimethylammonium chloride, or dialkyldimethylammonium chloride in an equivalence with the sheet substrate. Fix it. To check whether the isoelectric point is around the isoelectric point, prepare a solution with various concentrations of the isoelectric point holding component, immerse this preparation in purified water, and adjust the fixed concentration when the isoelectric point holding component starts elution. The required amount varies depending on the conditions of the refining and bleaching of the sheet substrate, but the required amount varies depending on the conditions, but organosilicon quaternary ammonium salt, chlorhexidine gluconate, benzalkonium chloride, cetylpyridinium chloride, alkyltrimethylammonium chloride or dialkyl chloride It can be achieved with 0.1% to 0.5% by weight (based on aqueous solution) of an isoelectric point-holding component such as dimethylammonium. An aqueous solution containing the above components is padded on a sheet substrate to be used, and then fixed by drying. The method of padding the sheet substrate with the aqueous solution of the isoelectric point-holding component may be performed by squeezing the solution to a constant squeezing rate using a mangle. The fixed isoelectric point-holding component does not elute from the thus fixed sheet base material into the next processing solution, which is an aqueous solution processing solution of chitosan or a mineral component. As the sheet base material, non-woven fabric, woven fabric, and paper can be used, and as the material, it is preferable to use a material that is hydrophilic and excellent in water absorption, such as rayon or cotton.

[0008]

[Example 1] Cotton 100 subjected to refining and bleaching by a conventional method
% Nonwoven fabric (basis weight 40 g / m ² ) as an isoelectric point-holding component, octadecyldimethyltrimethoxysilyl propylammonium chloride which is an organic silicon quaternary ammonium salt
It was immersed in an aqueous solution containing 0.4% by weight, squeezed completely with a mangle, and dried at 100 ° C. The nonwoven fabric was cut into a size of 15 cm × 20 cm and folded, and the folded nonwoven fabric was impregnated with an aqueous solution having the following mineral components, and a three-fold amount of the nonwoven fabric was injected. It was then sealed in a pillow package with an airtight sheet. The main concentrations of minerals in the aqueous solution are as shown in Table 1, and the concentrations were stable without the mineral components being adsorbed on the substrate. The wet wiper obtained by the present invention is effective for atopic disease. On the other hand, when the quaternary ammonium salt was not treated, the concentration of the mineral component impregnated with the nonwoven fabric was remarkably reduced, and only the water content was included.

[0009]

[Table 1] Squeezed liquid (1) Sampling one day after the impregnation product Squeeze solution (2) Sampling 10 days after the impregnation product Squeeze solution (3) Sampling 30 days after the impregnation product Squeeze solution (4) 90 days after the impregnation product Sampling later

[0010]

Example 2 A rayon nonwoven fabric (40 g / l in weight) was immersed in an aqueous solution containing 0.2% by weight of cetyltrimethylammonium chloride, squeezed with a mangle, and dried at 100 ° C. The nonwoven fabric was cut into a size of 20 cm × 30 cm and folded in four. Chitosan / dl-pyrrolidone carboxylic acid was added to the rayon non-woven fabric in an amount of 0.
A 1% by weight aqueous solution was impregnated with 2.5 times the weight of the nonwoven fabric, and then sealed with an airtight sheet by pillow wrapping. The measurement results of chitosan / dl-pyrrolidone carboxylic acid are as follows. According to the present invention, a predetermined chitosan concentration can be applied to the skin, which is effective in preventing dry skin from becoming rough.
On the other hand, chitosan / dl
-When impregnated with pyrrolidone carboxylic acid, there was no effect of preventing rough skin.

[0011]

[Table 2]

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Koji Nakamura Inventor Nakamura Bussan Co., Ltd. Awaji Plant 6-41, Nishi-Awaji, Higashi-Yodogawa-ku, Osaka-shi, Osaka

Claims (3)

[Claims] 1. A wet wiper in which a sheet base material is impregnated with a liquid having a cationic component, wherein the sheet base material is preliminarily provided with an organic silicon quaternary ammonium salt, chlorhexidine gluconate, benzalkonium chloride, cetylpyridinium chloride. One or two or more selected from alkyltrimethylammonium chloride or dialkyldimethylammonium chloride are adsorbed and fixed at an ionic equivalent of the sheet substrate, and furthermore, at around the isoelectric point of the sheet substrate. A wet wiper characterized by being stably impregnated with a liquid having a cationic component. 2. The wet wiper according to claim 1, wherein at least one of a soluble chitosan and a mineral component is used as the cation component. 3. The wet wiper according to claim 1, wherein the sheet substrate is one type selected from woven fabric, nonwoven fabric, and paper.