JP2007307287A - Fiber body for cleaning body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wet tissue or soft tissue loaded with no disinfectant. <P>SOLUTION: A fiber body such as the soft tissue or wet tissue is impregnated with a humectant mixed with at least one of 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol. The amounts of 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol mixed in the humectant are adjusted to be 0.2-0.6 wt.%, respectively. The fiber body may be a nonwoven fabric including cellulosic fibers of ≥10 wt.%. Chitin, chitosan, catechin, or a silver oxide may be included. Therefore, excellent antibacterial and antifungal effect is exhibited without being influenced by the adsorption of fibers, even if the disinfectant is not added. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fibrous body for wiping the body that touches the skin directly, such as soft tissue or wet tissue.

  Patent Documents 1 and 2 are prior art documents related to the present invention. In Patent Document 1, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol is combined with paraben as a fungicide, and the antibacterial fungicide has been improved by increasing the efficacy of paraben and reducing the compounding amount. Is disclosed. Patent Document 2 discloses that a chelating agent is blended to suppress the antibacterial and antifungal agent from being adsorbed on the fiber.

JP 11-310506 A (paragraph numbers 0006, 0012, Table 2, Table 4) JP-A-10-127516 (paragraph numbers 0002 to 0014)

  In recent years, not only dry tissue made of thin paper but also soft tissue imparted with moisture retention and wet tissue maintained in a wet state have been frequently used for makeup removal, dirt removal of fingers and the like. These are produced by spraying, applying, or impregnating a non-woven fabric made of cellulose fibers such as pulp, cotton, and rayon with a moisturizing liquid containing glycerin or the like, or silicone oil.

  With dry tissue, bacteria and mold are hardly generated even when left in a humid environment such as in the rainy season for a long time. However, wet tissues that are kept wet, as well as soft tissues that are semi-dry, are susceptible to moisture due to the effects of moisturizing materials, etc., and are often not sealed, resulting in the generation of microorganisms such as bacteria and mold. May become unusable.

  Therefore, a bactericidal agent such as benzalkonium chloride or methyl paraoxybenzoate is added to these moisturizing tissues in order to prevent the generation of microorganisms. However, it is known that the antibacterial agent is adsorbed by the fibers that make up the tissue and its antibacterial properties are reduced, so that an excessive amount of antibacterial agent is added from the beginning so that the generation of bacteria and mold can be reliably suppressed (patent Reference 2). However, if a disinfectant is contained in these tissues that come into direct contact with the skin, it may cause rough skin or inflammation depending on the person, and the amount used is as small as possible.

  In this regard, in Patent Document 2 described above, the addition of a chelating agent suppresses the adsorption of the bactericidal agent to the fiber, and as a result, succeeds in reducing the amount of the bactericide used. However, in order to suppress the decrease in the efficacy of the bactericidal agent due to adsorption, the amount of the bactericidal agent originally used has not been reduced.

  Prior Patent Document 1 discloses that the amount of paraben used can be reduced by combination with 1,2-pentanediol or the like, but it is only intended for liquids such as creams and lotions.

  Under such circumstances, the present inventor has been studying whether or not the generation of microorganisms in the fibrous body can be prevented without using a bactericidal agent. The present inventors have found that antibacterial and antifungal effects are recognized, and have completed the present invention.

  That is, an object of the present invention is to provide a fibrous body for body wiping that can suppress the generation of microorganisms and does not cause rough skin. An object of the present invention is to provide a fibrous body for wiping the body without the addition of a bactericide or a trace amount of bactericide.

  The fibrous body for body wiping according to the present invention includes a moisturizing agent containing at least one of 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol. To do. You may make it contain the moisturizer with which at least any two were mix | blended.

  Specifically, at least one of glycerin, polyethylene glycol, polypropylene glycol, dipropylene glycol, and 1,3-butylene glycol is included as the other humectant. The blending amounts of 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol contained in the humectant are preferably adjusted to 0.2 to 0.6% by weight.

  It may contain at least any one of benzalkonium chloride, benzethonium chloride, chlorhexidine gluconate, methyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, benzoic acid, and isopropylmethylphenol. .

  The fibrous body may be a nonwoven fabric containing 10% by weight or more of cellulose fibers. That is, the fibrous body includes, for example, a type in which polyethylene, polypropylene, or the like is blended with natural cellulose fiber, in addition to a type composed of only natural cellulose fiber. Specific examples thereof include soft tissue and wet tissue.

  Chitin, chitosan, catechin, or silver oxide can also be included.

  By including a moisturizer containing at least one of 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol in the fiber body, it is excellent without using a disinfectant. The antibacterial and antifungal effect can be exhibited. These compounds are humectants, and can be imparted with a soft and soft texture by being included in a nonwoven fabric or the like. In addition, although it is known that these have antibacterial properties, when applied to fibers, a markedly superior effect was exhibited. Although the mechanism is not clear, it is considered that these components are efficiently adsorbed with almost no adsorption as a result of these components covering the fiber surface all over by the moisturizing action.

  Furthermore, when a bactericidal agent is contained, even if it is a trace amount, since adsorption | suction of a fiber is suppressed by 1, 2- pentanediol etc., both antibacterial action together demonstrates a more reliable antifungal effect.

  This is particularly effective when the fibrous body is a nonwoven fabric containing 10% by weight or more of cellulose fibers. The more cellulose fibers, the better the touch, but the cellulose fibers, which are natural materials, are often contaminated with microorganisms up to the inside of each fiber, and are more susceptible to spoilage than synthetic fibers. Therefore, as a result of the humectant having an antibacterial action wrapping the fibers, the growth of microorganisms can be efficiently prevented.

  Soft tissue or wet tissue with no bactericidal agent added or only a small amount of bactericidal agent has many opportunities to directly touch the skin, and thus exhibits excellent effects in preventing rough skin.

  Chitin, chitosan, catechin, and silver oxide all have antibacterial action, and by including them in combination, various antibacterial properties can be imparted, further enhancing the antibacterial and antifungal effects. It can be demonstrated.

  Table 1 below shows the results of applying the present invention to a wet tissue and performing a challenge test on antibacterial and antifungal effects with various formulations.

(Test conditions) For the test, a cotton fiber nonwoven fabric (40 g / m ² ) used for wet tissue was used. 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, glycerin, dipropyleneglycol humectants shown in the left column of Table 1, and methyl parahydroxybenzoate, benzalkonium chloride Each disinfectant was adjusted to each blending ratio shown in Examples 1 to 7 and Comparative Examples 1 to 5, and this was used as a wet solution. Two or more kinds of 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol were combined in the range of 0.2 to 0.6% by weight. The humectants glycerin and dipropylene glycol were blended under the same conditions. In addition,% here has shown weight%, and the remainder is purified water.

(Test solution) For each of the wet solutions of Examples and Comparative Examples, after impregnating the wet solution at a ratio of 500% by weight with respect to the previous nonwoven fabric, the solution was put in a bag and sealed, and left at room temperature for 2 weeks I put it. Thereafter, the wet solution impregnated into the nonwoven fabric was squeezed out and used as a test solution.

(Test Bacteria) As bacteria, standard mixed bacteria of E. coli (Escherichia coli ATCC 8739), Pseudomonas aeruginosa ATCC 9027, Staphylococcus aureus ATCC 6538) are used, and this is mixed with sterilized water to test bacteria. Liquid. As fungi, black Aspergillus niger ATCC 16404, candita (Candida albicans ATCC 10231), blue mold (Penicillium Citrinum ATCC 9849), aureobasidium (Areobasidium pullus) A test bacterial solution was used.

(Test operation) 20 ml of each test solution was dispensed into a group of vials, and 0.2 ml of each of the above bacterial and fungal test bacterial solutions was inoculated. Samples inoculated with bacteria were stored at 30 ° C and samples inoculated with fungi were stored at 25 ° C. Three samples were prepared for each of Examples 1 to 7 and Comparative Examples 1 to 5, and the viable cell count of each sample was measured after 7 days, 14 days, and 21 days. The number of viable bacteria was measured by counting the number of colonies (cfu) by the pour method (bacteria: SCDLP agar medium, fungus: GPLP agar medium).

(Results) The number of primary bacteria was about 10 ⁶ cfu bacteria and about 10 ⁵ cfu fungi. In Examples 1 to 7 in which 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol were combined, no bacteria were detected after 7 days of culture. In Comparative Examples 1 to 5, which were not performed, a part of the bactericidal effect was delayed although a bactericidal agent was blended. Probably due to fiber adsorption. Similarly, in all of the fungi, no detection was observed after 21 days of culture in all of the examples, whereas in the comparative example, the number of viable bacteria of 10 ² cfu except for Comparative Example 3 having the highest fungicide concentration. Was observed. As is clear from this result, the wet humectant contains either 1,2-pentanediol, 1,2-hexanediol, or 1,2-octanediol in the wet tissue. An excellent antibacterial and antifungal effect was recognized by including a moisturizer combined with at least one species.

  The following Table 2 shows the results of applying a challenge test for antibacterial and antifungal effects by applying the present invention to soft tissue and various formulations.

(Test conditions) For the test, tissue paper (15 g / m ² ) mixed with 10% by weight or more of cellulose fibers for soft tissue was used. Each of 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, glycerin, dipropylene glycol humectant shown in the left column of Table 2, and benzalkonium chloride and chlorhexidine gluconate The disinfectant was adjusted to each blending ratio shown in Examples 1 to 6 and Comparative Examples 1 to 4, and this was used as a wet solution. 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol were all 0.5% by weight, and two or more kinds were combined. It should be noted that the blending conditions of glycerin and dipropylene glycol under the same conditions are the same, the balance is purified water, and% indicates weight%, which is the same as the test conditions in the previous wet tissue.

  Since the test solution, the test bacteria, and the test operation are the same as in the case of the wet tissue, the description is omitted.

(Results) The number of primary bacteria was about 10 ⁶ cfu bacteria and about 10 ⁵ cfu fungi. In bacteria, in any of Examples 1 to 6 containing 1,2-pentanediol, 1,2-hexanediol and 1,2-octanediol, and Comparative Examples 1 to 4 containing only a bactericide, after 7 days of culture Not detected. It seems that the effect of adsorption was small because the amount of fiber was small. On the other hand, in fungi, no detection was observed after 21 days of culture in all of the examples, whereas in the comparative example, a viable cell count of 10 ² cfu remained even after 21 days of culture. As is clear from these results, the soft tissue contains either 1,2-pentanediol, 1,2-hexanediol, or 1,2-octanediol in the moisturizing agent. By including two or more kinds of moisturizers in combination, an excellent antibacterial and antifungal effect was recognized.

  Furthermore, the action mechanism differs by including catechins or silver oxides, which are natural polysaccharides such as chitin, chitosan and green tea, which are antibacterial, either alone or in combination. A variety of antibacterial properties can be imparted, and the antibacterial and antifungal effect can be further ensured.

Claims (11)

  A fibrous body for body wiping, comprising a moisturizing agent containing at least one of 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol.   A fibrous body for body wiping, comprising a moisturizing agent containing at least any two of 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol.   The fiber body for body wiping according to claim 1 or 2, comprising at least one of glycerin, polyethylene glycol, polypropylene glycol, dipropylene glycol, and 1,3-butylene glycol as a humectant.   The amount of each of 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol contained in the humectant is 0.2 to 0.6% by weight. Fiber body for wiping body described in 1.   It contains at least any one of benzalkonium chloride, benzethonium chloride, chlorhexidine gluconate, methyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, benzoic acid, and isopropylmethylphenol. The fiber body for body wiping as described in any one.   The fibrous body for body wiping according to any one of claims 1 to 5, wherein the fibrous body comprises a nonwoven fabric, and the nonwoven fabric contains 10% by weight or more of cellulose fibers.   The fiber body is a soft tissue, The fiber body for body wiping according to any one of claims 1 to 6.   The fiber body is a wet tissue, The fiber body for body wiping according to any one of claims 1 to 6.   The fibrous body for body wiping according to any one of claims 1 to 8, comprising chitin and chitosan.   The fiber body for body wiping in any one of Claims 1-9 containing catechin.   The fiber body for body wiping in any one of Claims 1-10 containing silver oxide.