JP3157241U - Deodorant sheets - Google Patents

Abstract

An object of the present invention is to provide a deodorant sheet which has both high absorption characteristics and deodorant properties and is excellent in safety without skin trouble. SOLUTION: The surface side of a laminate formed by laminating 1 to 5 sheets of water absorbent paper 31 and 32 having a crepe rate of 10% or more is coated with a water permeable material 2 on the surface or both surfaces of a water absorbent sheet 4 and laminated. A sheet in which the back side of an article is coated with a water-impermeable material 5 and the water-absorbent sheet is sandwiched between reinforced water-absorbent papers coated with tannin at a rate of 0.01 to 1 g / m 2. It is characterized by. [Selection] Figure 1

Description

  The present invention relates to a deodorant sheet that is suitably used for absorbing and absorbing urine, feces, blood, body fluids, medicinal liquids, and the like in the field of medical care, nursing care, or pet breeding.

  In recent years, with the rapid transition to an aging society, there is an increasing number of cases where medical treatment and nursing care are forced to be performed at home due to a lack of specialized reception facilities in the field of medical care and nursing care. Above all, the problem of incontinence odor in home care is that a slight incontinence odor remains in the daily life odor, no matter how much treatment is carried out, and uncomfortable daily life is forced.

As an example of improving the problem of unpleasant odor due to such incontinence with medical or nursing sheets, Patent Document 1 discloses an absorbent article using an absorbent polymer containing a plant component such as polyphenol. Has proposed an absorbent article in which a cloth sheet made of a heat-adhesive conjugate fiber in which a composite of a catechin, tannic acid, or the like and a ceramic component is blended is arranged in at least a part of the absorbent article.

  However, since the absorbent article described in Patent Document 1 contains a deodorant component in the absorbent polymer, either the absorption performance or the deodorization performance is offset and sufficient performance cannot be exhibited. There is. On the other hand, since the absorbent article of Patent Document 2 contains a deodorant such as catechins in a cloth sheet made of a heat-adhesive conjugate fiber, any article such as an insufficient deodorizing effect in this case as well. It did not satisfy both absorptivity and deodorant and was never satisfied.

JP 2004-156010 A JP 2004-089234 A

  An object of the present invention is to provide a deodorant sheet that has both high absorption characteristics and deodorant properties and is excellent in safety without skin trouble.

  As a result of diligent research to achieve the above-mentioned object, the present inventor used natural tannin, which is a natural component, as a deodorant, and applied a predetermined amount of tannin to the water-absorbent sheet that is the main part of the sheet. In order to complete the present invention, it is determined that the deodorizing performance can be maximized without lowering the water absorption performance of the water absorbent polymer by constructing the water absorbent polymer sandwiched between the reinforced water absorbent paper. It has come.

That is, in the present invention, the surface side of a laminate formed by laminating 1 to 5 sheets of water absorbent paper having a crepe rate of 10% or more is coated with a water-permeable material on the surface or both sides of the water absorbent sheet, and the back side of the laminate A sheet coated with a water-impermeable material, wherein the water-absorbent sheet sandwiches a water-absorbent polymer with a reinforced water-absorbent paper coated with tannin at a rate of 0.01 to 1 g / m ^2. It is a deodorant sheet.

In the present invention, the water-permeable material used on the surface side is not particularly limited as long as water can pass through the material, and examples thereof include water-permeable nonwoven fabric, woven fabric, perforated film, or mesh film. It is done. It is preferable to use a water-permeable nonwoven fabric or woven fabric having a basis weight of 10 to 100 g / m ² and having a certain level of smoothness even when wet. A good balance between feeling and water permeability. Examples of the mesh film include those manufactured by JEJE Sister Co., Ltd. (China) with an aperture ratio of 30 to 50% and an aperture density of 70 to 200 holes / cm ^2. Since this portion is perforated in the shape of a mortar-shaped cross section, this portion is preferable in that it exhibits a check valve effect and can suppress the backflow of sewage from the water-absorbing paper. On the other hand, the water-impermeable material used for the back side is not particularly limited as long as it has water-impermeable properties that do not allow water to permeate through the material, and a hydrophobic plastic film, particularly a polyethylene film or polypropylene film having a thickness of 5 to 50 microns. It is preferable to use it.

The water absorbent paper is a water absorbent paper generally used for medical use or nursing care, and is not particularly limited as long as it has a crepe rate of 10% or more, preferably 15% or more. A material having a basis weight of 10 to 40 g / m ² and a water absorption capacity of 5 to 15 times its own weight with respect to 0.9% physiological saline is preferable. Here, if the crepe rate is less than 10%, the volume feeling and the water absorption ability are lowered and the sewage cannot be promptly absorbed, and the function as a sheet for medical use or nursing care cannot be performed sufficiently. In the sheet of the present invention, it is preferable to use 1 to 5 sheets, preferably 1 to 3 sheets, of such water-absorbing papers because they are always kept almost dry during use and less discomfort due to wetting.

Furthermore, the water-absorbent sheet used in the present invention is one in which a water-absorbing polymer is sandwiched between reinforced water-absorbent papers coated with tannin at a rate of 0.01 to 1 g / m ² . Here, tannin is an aromatic compound having a plurality of phenolic hydroxyl groups widely present in the plant kingdom, and has a molecular weight of several hundred to several tens of thousands. In particular, tannins obtained by boiling and roasting shredded persimmons, filtering and drying are highly safe because they are cheap and naturally derived, and they also have excellent deodorizing and antibacterial properties unique to polyphenol structures. It is what has.

The water-absorbent sheet of the present invention is made into an aqueous solution by appropriately adding ethanol, organic acid, surfactant, binder, water, etc. to this tannin, and the amount of tannin is sprayed on a reinforced absorbent paper by a method such as spraying. After being coated to 0.01 to 1.0 g / m ² , a granular (powder) water-absorbing polymer is sprayed on the surface, and a reinforced water-absorbing paper is also disposed on the upper surface, whereby a reinforced water-absorbing paper. A water-absorbing polymer is sandwiched between the two, and its water absorption capacity is 0.9% physiological saline 20 times or more, preferably 30 to 150 times, more preferably about 50 to 100 times its own weight. An adhesive sheet is preferred.

  As the water-absorbing polymer, any polymer can be used as long as it has a crosslinked structure and has a carboxyl group and a carboxylate group as a constituent component of the polymer. Among them, polyacrylate cross-linked product, starch-acrylic acid graft copolymer cross-linked product, acrylate-vinyl acetate copolymer hydrolyzate, acrylate-acrylamide copolymer cross-linked product and polyacrylonitrile cross-linked product As a suitable example, a hydrolyzate of

If the coating amount of tannin is less than 0.01 g / m ² , a sufficient deodorizing effect cannot be obtained. If the coating amount exceeds 1 g / m ² , not only the cost increases, but also the coating amount is met. The effect is not obtained.

  In addition, the reinforced water absorbent paper used in the present invention is coated with a tannin-containing aqueous solution, so a paper strength enhancer is added to maintain a certain level of strength even when wet, or pulp fibers with high beating degree are added. Specifically, it is preferable that the wet strength is 1 N / 25 mm or more in the vertical direction and 0.5 N / 25 mm or more in the horizontal direction.

  The deodorant sheet of the present invention is a laminate of a water-permeable material and a water-absorbent paper, a water-absorbent sheet, a water-absorbent paper, and a non-water-permeable material as described above. However, both of them may be partially fixed by a method such as sewing, sticking or adhesion. In the present invention, a water-permeable material and a non-water-permeable material are joined so that the filth does not leak from the end of the sheet. In this case, the term “joining” refers to heat sealing or hot-melt adhesive. The state joined by the method etc. is pointed out.

  The deodorant sheet of the present invention is within a range that does not impair its purpose and effect, and other deodorant or fragrance in or between water-permeable material, water-absorbent paper, water-absorbent sheet, water-impermeable material An antibacterial agent or the like may be contained, and the water-absorbent sheet may be sandwiched between reinforced water-absorbent paper in a form in which a water-absorbing polymer and pulp fibers are mixed. In addition, the sheet of the present invention is designed such that the left and right ends of the non-permeable material are lengthened so as to be wound around the bedding in order to prevent displacement when the sheet is mounted, or Velcro (registered trademark) or the like is attached to the back of the sheet. It is safe to attach. Further, in the sheet of the present invention, the upper and lower ends of the non-permeable material are overlapped by 5 mm or more, preferably 10 mm or more, between the water permeable material and the water-absorbing paper in order to prevent the spilled liquid from leaking from the upper and lower ends of the sheet. It may be provided with a margin and joined with a water-permeable material.

  The deodorant sheet according to the present invention uses a water-permeable material as a surface material on the side in contact with the human body, and uses a water-impermeable material as a back material on the side in contact with the bedding. According to the sheet of the present invention, the sewage is quickly absorbed by the specific creped water-absorbing paper through the water-permeable material, and the sewage that has passed through the water-absorbing sheet has a large water absorption. Therefore, even if there is a load due to weight, the surface material does not bleed out, it is always kept almost dry during use, and it does not cause discomfort, and it also suppresses deterioration of the physical condition due to coldness of the body It is done. In addition, the reinforced tanned paper that forms the water-absorbent sheet is coated with 柿 tannin, so the malodor generated from the absorbed sewage is quickly decomposed by ニ ン tannin, the unpleasant odor disappears, and the antibacterial effect also has It is excellent in safety and hygiene.

These are the cross-sectional schematic which shows an example of the deodorizing sheet of this invention. These are the cross-sectional schematic which shows an example of the water absorbing sheet used with the deodorant sheet of this invention.

Although the form for implementing this invention is as follows, these are only examples of the form for implementing this invention, and this invention is not limited to these embodiment.

(Embodiment)
FIG. 1 is an example of a deodorant sheet according to the present invention. The sheet 1 is a nonwoven fabric, a water absorbent paper 31, a water absorbent sheet 4, a water absorbent paper 32, and a water impermeable material 5 as a water permeable material 2 from the surface side. A hydrophobic film is laminated in this order, and a non-woven fabric on the front side and a film on the back side are bonded together at the periphery of the laminate.

In this case, as the water-absorbent sheet 4, as shown in FIG. 2, a reinforced water-absorbing paper 6 (Okura) coated with a tannin dispersion (BM-539 manufactured by Tanning Co., Ltd.) so that the tannin is 0.10 g / m ^2. papermaking Ltd. NPE), water-absorbing polymer 7 (Nippon Shokubai Co., Ltd. Aqualic CSW) 40 g / m ² was sprayed between the reinforcing absorption paper persimmon tannin non-application, is passed through a heat roll It is integrated and has a water absorption of 80 times its own weight with respect to 0.9% physiological saline. Further, as the water absorbent papers 31 and 32, water absorbent paper having a water absorption amount of 8 times its own weight with respect to 0.9% physiological saline, a crepe rate of 18%, and a basis weight of 27 g / m ² (crepe manufactured by Kami Shoji Co., Ltd.) The laminate was prepared using paper. This laminate was cut into a length of 570 × width of 850 mm, and the water absorption with respect to 0.9% physiological saline was 1300 g, which was 15 times its own weight. Further, as the nonwoven fabric 2 on the front surface side, a nonwoven fabric (manufactured by Shinwa Co., Ltd.) having a fiber basis weight of 17 g / m ² composed of 30% by weight of rayon fiber and 70% by weight of polyethylene fiber is used as the hydrophobic film 5 on the back surface side. Used a polyethylene film (manufactured by Fukusuke Kogyo Co., Ltd.) having a thickness of 20 microns.

Table 1 shows the results obtained by examining the deodorizing sheets of the present invention prepared by the above method with the sheets (comparative form) prepared by the same method except that no tannin was applied. .

  Here, the deodorization performance is that the sample sheet cut to 3 × 5 cm is suspended in a 500 ml flask with a wire, and then ammonia is 100 ppm (concentration 100 times the threshold value) in the case of ammonia so as not to touch the sample. In each flask, the standard solution was 12 ppm (100 times the same concentration) in the case of hydrogen sulfide, 3 ppm (150 times the same concentration) in the case of hydrogen sulfide, and 2 ppm (100 times the same concentration) in the case of methyl mercaptan. The residual gas concentration (unit: ppm) after 1 hour of sealing was measured with a detector tube, and the measured values are summarized in Table 1. In Table 1, the deodorization rate (%) obtained from the initial concentration and the residual concentration is also shown in parentheses.

  From the results in Table 1, it is confirmed that the deodorizing sheets of the present invention have a high deodorizing effect with a deodorizing rate of 100% for any of the four major malodors, ammonia, trimethylamine, hydrogen sulfide, and methyl mercaptan. It was done. In addition, when the sheet of this embodiment is used as a bed for a nursing bed, almost no odor such as incontinence odor is felt, and the sewage is quickly absorbed by the absorbent paper through the nonwoven fabric, and the absorbed sewage The user was able to use it comfortably as if he / she touched the almost dry sheets during use. Furthermore, according to this sheet, it was found that even if the portion that absorbed the sewage was temporarily cooled, the tactile sensation temperature was recovered quickly and the bedding was not soiled.

  The deodorant sheet of the present invention is used for medical or nursing care, especially in areas where hygienic and reliable treatment is required, such as childbirth, surgery, and nursing care sites. Since it has an excellent deodorizing function in addition to liquid absorption and liquid absorption treatment, it is extremely suitable for use as a disposable sheet for breeding pets such as dogs and cats as well as medical and nursing care sites.

DESCRIPTION OF SYMBOLS 1 ... Medical or nursing deodorizing sheet 2 ... Water-permeable material 31, 32 ... Water-absorbing paper 4 ... Water-absorbing sheet 5 ... Water-impermeable material 6 ... Reinforced water-absorbing paper 7 ... Water-absorbing polymers

Claims (1)

The surface side of a laminate formed by laminating 1 to 5 sheets of water absorbent paper having a crepe rate of 10% or more is coated with a water permeable material on the surface or both sides of the water absorbent sheet, and the back side of the laminate is impermeable to water. Deodorant, characterized in that the water-absorbent sheet is sandwiched with reinforced water-absorbent paper coated with tannin at a rate of 0.01-1 g / m ^2. Sheets.

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