JPS61275401A - Water absorbable pad - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water absorbent pad for use in disposable diapers, sanitary napkins, etc.

[Prior Art 1] For example, diaper rash is a problem when using disposable diapers. This is called sub-irritative contact dermatitis, and a. The surface of the skin becomes irritated and rough.

b. The diaper has a poor texture and is too tight against the skin.

C9 Bacteria, urea, ammonia, etc. are attached to the skin.

When these conditions occur, fine scratches are created on the skin due to physical activity, and the irritation caused by ammonia is added to the scratches.

Therefore, in order to prevent such diaper rash, various studies have been carried out, for example.

d1 By using a waterproof layer material with ventilation holes, the paper diaper is made breathable, thereby preventing stuffiness.

e. A special superabsorbent polymer that neutralizes alkali in urine is included in the water absorption layer of the disposable diaper.

f. Adding a bactericide into the water absorption layer to suppress bacterial activity.

However, in the case of d, it is impossible to suppress the effects of bacteria, urea, ammonia, etc.
In addition, with method e, it is not possible to suppress bacterial activity only by neutralizing ammonia, and with method f, there is a problem in terms of safety. It was difficult to reliably prevent this.

[Problems to be Solved by the Invention] The present invention solves the problem that ammonia (NH) is a cause of contact dermatitis such as diaper rash, and that this ammonia
Intestinal bacteria, especially Proteus, are involved in its production, and urea [co(Na2)2] is hydrolyzed into ammonia and carbon dioxide as shown in the following formula by the catalytic action of urease, a ureolytic enzyme produced by Proteus. Focusing on the fact that it is produced by
O.

The technical objective is to safely and reliably prevent contact dermatitis such as diaper rash by suppressing the urease production function of intestinal bacteria.

[Means for solving problems] In order to solve the above problems, in the present invention.

It was discovered that a certain type of lactic acid bacteria that is beneficial to the human body has effective antibacterial properties against the above-mentioned intestinal bacteria and the ability to neutralize ammonia. This is a characteristic feature.

[Action] The antibacterial action of lactic acid bacteria against intestinal bacteria (Proteus) suppresses the production of urease, and the production of ammonia due to the catalytic action of this urease is suppressed. Moreover,
Since the lactic acid bacteria have a neutralizing function against ammonia, even if ammonia is produced, it is immediately neutralized, and diaper rash and odor caused by ammonia are effectively prevented.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings. Fig. 1 illustrates a cross-sectional structure when the water-absorbent pad of the present invention is applied to a disposable diaper, and 1 is a water-absorbent pad. sex pad, 2 is a plastic surface sheet such as polyethylene, 3
is a back sheet made of a flexible and non-stick nonwoven fabric.

The above-mentioned water-absorbing pad 1 has a pad body 1a formed by mixing or laminating one or more kinds of highly water-absorbing materials such as cotton-like bulbs, paper cotton, water-absorbing paper, water-absorbing polymers, etc. as desired, and ammonia production. It retains lactic acid bacteria, such as Lactobacillus helveticus B-1, which has antibacterial properties against bacteria and an ammonia neutralizing function.

It has been confirmed that the above lactic acid bacteria exhibits high antibacterial properties against Proteus, which has particularly strong urease activity among intestinal bacteria, and has the ability to effectively suppress the production of this urease. It is known that it has a neutralizing function and antibacterial properties against Cancita, a type of yeast.

In addition, various methods can be considered for retaining the lactic acid bacteria in the pad main body 1a, such as a method of freeze-drying the lactic acid bacteria and directly distributing the powder in layers or dots inside or on the surface of the pad main body 1a, There is a method of holding lactic acid bacteria in a carrier made of a polysaccharide such as pullulan or sodium alginate, and holding this carrier in the pad body 1a.
As shown in the figure, the carrier 4 may be encapsulated and arranged in a layer inside the pad body 1a, or distributed in random dots, or the carrier may be formed into a film and layered inside or on the surface of the pad body 1a. Alternatively, it is possible to employ means such as laminating multiple layers. Alternatively, if necessary, two or more of the above lactic acid bacteria powder and a capsule or film made of a carrier may be used in combination. In addition, adding sugars such as lactose and glucose, amino acids, skim milk powder, etc. to the carrier is effective in stabilizing and activating lactic acid bacteria. - In the disposable diaper having the above configuration, the production of urease is suppressed by the antibacterial action of lactic acid bacteria against intestinal bacteria (Proteus), and the production of ammonia due to the catalytic action of this urease is suppressed. Moreover, since the lactic acid bacteria have a neutralizing function against ammonia, even if ammonia is produced, it is immediately neutralized, and diaper rash and odor caused by ammonia are effectively prevented.

Note that the water-absorbent pad of the present invention can be applied not only to the paper diapers shown in the above embodiments but also to sanitary napkins.

[Effects of the Invention] According to the water-absorbing pad of the present invention, lactic acid bacteria that are beneficial to the human body are used, and the lactic acid bacteria suppress the activity of ammonia-producing bacteria and neutralize the generated ammonia. Contact dermatitis and unpleasant odor caused by ammonia can be safely and reliably prevented.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view showing an embodiment of the present invention.
. l...Water absorbent pad, 16e fist pad body.

Claims (1)

[Claims] 1. A water-absorbing pad characterized in that the pad body made of a water-absorbing material holds lactic acid bacteria that have antibacterial properties against ammonia-producing bacteria and an ammonia-neutralizing function.