JPS60165908A - Pleasant sleep seat - 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 The present invention relates to a comfortable sleep sheet that is a bedding supplement for providing a good night's sleep. More specifically, when sleeping, it can be placed above and below the mattress or sheets, preferably between the sheets and the mattress.
To provide a comfortable sleep sheet capable of maintaining and continuing a comfortable and sound sleep state by absorbing moisture generated by the body during sleep and keeping the mattress always dry.

The amount of water released by the human body during a night's sleep is approximately 200 to 4QOIIL7 for adults! It is said that Therefore, as a wisdom of living for a long time, cotton made of water-absorbing natural hydrophilic TIL fibers is used as a thick sheet, so-called a pillow, to completely absorb the moisture generated. It is used to effectively take advantage of its comfortable cushioning properties and its heat-insulating properties, which contain a large amount of air.・However, cotton is hygroscopic and retains the water it absorbs, so it is usually dried in a well-ventilated, sunny place to remove moisture and used repeatedly. If you continue to use it for many days without performing this operation, that is, if you continue to use it in a so-called perpetual bed state, the moisture content will reach a supersaturated state, which will cause it to dry on the low temperature side, such as floors, tatami mats, etc. Moisture oozes out as condensation water on the contact surface,
Mold and other substances may grow, causing the tatami mats and futons to become rotten. In addition, long-term sick patients are wrapped in bedclothes and bedclothes that have absorbed enough water, which causes skin diseases caused by the growth of fungi and the so-called "one bed at a time" phenomenon.

In addition, elderly people tend to wake up early in the morning, but especially in the early morning hours when the moisture content of the mattress is high, the dew point is low as the temperature drops, and when the generated water vapor reaches a saturated or supersaturated state where it is difficult to condense, the skin becomes uncomfortable. It is thought that this increases the mood and makes it easier to wake up.

The inventor of the present invention has been actively searching for a material or system that can sufficiently absorb and remove the water emitted from the body while sleeping, and found that by using a sheet containing a water-absorbing polymer, this unpleasant phenomenon was completely eliminated. The inventors have discovered that the present invention has been achieved.

Therefore, an object of the present invention is to provide a comfortable sleep sheet that provides a good night's sleep to the person using the sheet, and particularly provides a comfortable sleep to the elderly and sick.

The good sleep sheet of the present invention has a flexible, moisture-permeable first sheet and a flexible, moisture-permeable or moisture-impermeable second sheet on both sides, and contains a water-absorbing polymer between them. It is.

The first sheet and the second sheet used in the present invention may both be flexible and moisture permeable, or the second sheet may be flexible and moisture permeable.
Only the sheet may be moisture-impermeable.

Materials for forming flexible, moisture-permeable sheets include paper,
Non-woven or woven fabrics made of one or a combination of two or more of pulp, cotton, silk, wool, synthetic fibers, etc., or, for example, polyethylene, polypropylene, polyester, nylon, polystyrene, vinyl chloride, and various other so-called thermal A moisture-permeable sheet obtained from a plastic resin, that is, a material that can be formed into a film sheet when heated, can be made porous to make it moisture-permeable.

Moreover, when using a moisture-impermeable sheet as the second sheet, the moisture-impermeable sheet may be used as is.

The water-absorbing polymer used by being contained between two sheets includes, for example, a crosslinked product of an acrylate polymer, a crosslinked product of an acrylic acid and acrylate copolymer, a starch grafted with an acrylate polymer. methylcarboxylated cellulose, crosslinked copolymers of olefin and various unsaturated carboxylic acids (e.g. inbutylene and maleic acid), crosslinked vinyl acetate polymers, etc., or these. Examples of such combinations include so-called water-absorbing polymers, which usually have the ability to absorb water at least several dozen times to 1000 times their own weight. The shape that should be used is
Examples include powder, flake, granule, thread, film, woven fabric, non-woven fabric, etc., which can be arbitrarily selected depending on the suitability of the sheet material, mechanical properties, etc.

In order to obtain the good sleep sheet of the present invention from the first sheet, the second sheet and the water-absorbing polymer, it is sufficient to contain the water-absorbing polymer between the first sheet and the second sheet. In order to avoid uneven distribution or movement of the water-absorbing polymer between the two, it is preferable to support the water-absorbing polymer on a suitable base material. As such a base material, a crushing valve, paper, woven fabric, non-woven fabric, cotton, etc. are used, and for example,
Pulverized pulp and a water-absorbing polymer are crimped together using a binder, or they are crimped using a small amount of water vapor to utilize the binder effect of the water absorption of the water-absorbing polymer. It is supported by laminating layers of paper (tissue paper), cotton cloth, non-woven cotton cloth, non-woven cloth made of various synthetic fibers, etc., and bonding them under pressure using an appropriate binder. Pressure bonding methods include applying a binder to the periphery and then crimping it, or applying a suitable amount of binder to the entire surface, or using water vapor to draw out the adhesive strength of the polymer without using a binder, and hot embossing. The dot gluing method Hu is used. Binders include various natural and synthetic glues, such as starch glue,
From adhesives such as glue, polyvinyl alcohol, and cellulose, to adhesives such as vinyl acetate polymers, acrylic polymers, epoxy polymers, phenolic polymers, ethylene-vinyl acetate polymers, and acrylic adhesives. Styrenic polymer, vinyl acetate-acrylic polymer, olefin-carboxylic acid polymer,
In addition, solvent-based and water-based (emulsion-based) adhesives made of all kinds of resin-based polymers and combinations thereof may be mentioned, and these are used as binders for nonwoven fabrics.

The good sleep sheet of the present invention has the above-mentioned effects, but at the same time, the second sheet can be made moisture-impermeable even when infants, children, and the elderly release a large amount of moisture at once due to sleeping and urinating. If you keep it in place, it will be able to perform its function as a protection for the mattress. However, if both the first sheet and the second sheet are moisture permeable, good results can be obtained even if a plurality of sheets are used simultaneously.

Note that the amount of the water-absorbing polymer used in the present invention can be arbitrarily selected with a target of 9101 to 3002 m per sheet m.

In order to further enhance the usability and functionality of the sheet of the present invention, we have conducted intensive studies and found that absorbent cotton was used as the base material to support the water-absorbing polymer, and this was point-pressed by an embossing heat processing method without a binder. Using one or more layers of non-woven fabric, depending on the situation, this cotton non-woven fabric is combined with non-woven fabric such as paper or pulp, and a water-absorbing polymer is inserted between them, and this is done without a binder or with a normal binder. It has been found that by creating a nonwoven fabric consisting of two or more layers using an embossing method or a pressure bonding method and sandwiching this between two sheets, a comfortable sleeping sheet that can exhibit extremely efficient and effective performance can be obtained.

Examples will be described below, but it goes without saying that the present invention is not limited only to the examples.

Example 1 Two sheets of tissue paper each having a width of 100 cm and a speed of 8 r/m were used, and a water-absorbing polymer (a cross-linked product of acrylic acid-acrylate copolymer, Aqualic CA1) was used between the upper and lower sheets.
50? /
Tissue paper, water-absorbing polymer, tissue paper, etc., made by uniformly dispersing the paper at a ratio of
The laminated nonwoven fabric was cut into a size of 1rrL x 2m to make a good sleep sheet. This is a cotton mattress (average atk!?)
We decided to spread it out on top of it, spread a sheet on top of it, and use only one towel blanket as a futon, and provided the above bedding to 10 males between the ages of 18 and 25 living in the single dormitory of Company A. I made him use this good sleep sheet. In addition, the other 10 participants were provided with bedding only, without using a comfortable sleep sheet. In both cases, the futons were used as perennial beds during the rainy season from mid-June to mid-July. All rooms are Japanese-style rooms with 4.5-inch tatami floors made from natural rushes.
It was a tatami room.

When we raised the futons in the first month, we found that the tatami mats in the rooms of 10 metalworkers, who had not used sleeping sheets under the futons, had absorbed water and were discolored, and the tatami mats in the rooms of 8 of them had mold. It was starting to grow and grow. Also, the average weight of the mattress at that time was 7.5
It was klil.

On the other hand, the tatami mats under the mattresses in the rooms for 10 people, which were covered with sleeping sheets, were absorbing some moisture, but had not changed color. The average weight of the mats for those 10 people was 65.
It was boiled.

Example 2 The same sleep sheet as in Example 1 was used in a nursing home for 65 people.
~ Provided to 10 82 year old men and women, placed between bed mattress and sheets, mid-June, when bedsores are most likely to occur ~
We observed the incidence of bedsores for two months until mid-August. Normally, as a result of a survey conducted at this nursing home, an average of 30 elderly people have bedsores during this season, but in this test, none of the 10 elderly people who used the comfort sheet suffered bedsores. Ta. Furthermore, 5 out of 10 people failed to urinate, so 2 of them had to replace the sleeping sheet 4 times, 2 had to replace it twice, and 1 had to replace it once.

Example 3 The same water-absorbing polymer as in Example 1 was uniformly dispersed between two layers of 40 f/Irl absorbent cotton at a rate of 5-or/m, and this was pressed and bonded by hot embossing to form a sheet. The sheet was cut into 1 m x 2.2 m to make a good sleep sheet.

We selected 30 elderly women between the ages of 60 and 75 who always woke up to urinate during the night during their sleep, and had them use this comfortable sleep sheet for one month from January to February during the winter. Looking at the number of people who did not, 〃 6-10 days 〃 5 〃 11-15 days 〃 3 〃 16-20 days 〃 5 tt 21-25 days 〃 3 〃 26-30 days 〃 O From this, we can infer the effectiveness of the good sleep sheet. be done.

Example 4 100.17 m of pulverized pulp and the same water-absorbing polymer used in Example 1 were uniformly mixed at a ratio of 1:10 by weight between two tissue papers.
A sheet laminated with a polyethylene film with a thickness of 0.1
It was cut into pieces measuring 1.5 m x 1.5 m and used as a good sleep sheet for babies.

This good sleep sheet was placed between the mattress and sheets of a baby bed with the polyethylene film side facing down, and was used by 10 babies within 6 months of age for one month from mid-July to mid-August.

In the past month, two babies have developed heat rash on their backs. On the other hand, 10 babies who do not use this good sleep sheet
In the past month, five babies have developed heat rash on their backs.
It was a name.

In addition, the number of cases in which the mattress got wet due to ``bedwetting'' was 12 cases in the past month among 10 people who did not use the sleep sheet, but 0 cases among the 10 people who used it.

Patent applicant Nippon Shokubai Chemical Co., Ltd. Japan Distillery Co., Ltd.

Claims (1)

[Claims] 1. A comfortable sleep sheet for use during sleep, which has a flexible, moisture-permeable first sheet and a flexible, moisture-permeable or moisture-impermeable second sheet on both sides, and contains a water-absorbing polymer between them. .