JP2009275320A - Sheet material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet material having excellent anti-slip performances, and capable of reducing a load applied to a body during reclining operation. <P>SOLUTION: The sheet material is used for bedding or furniture having reclining functions. In the sheet material, a fabric having ≥0.15 to ≤0.4 coefficient of static friction is used in a part where the upper half of the body contacts, and a fabric having ≥1.0 coefficient of static friction is used in a part where the lower half of the body contacts in the fabrics composing the sheet material. The sheet material provides the excellent anti-slip performances, and is capable of reducing the load applied to the body during the reclining operation by using the fabrics having different properties in the part where the upper half of the body contacts and in the part where the lower half of the body contacts. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sheet material used for bedding or furniture having a reclining function. More specifically, it is a sheet material composed of a fabric having a different property between the portion with which the upper body abuts and the portion with which the lower body abuts, reducing the load on the body during the reclining operation and shifting the body during the reclining operation. The present invention relates to a sheet material having an excellent function of preventing the above.

  Conventionally, as bedding or furniture having a reclining function, there are furniture such as a chair and a sofa, bedding such as a bed, etc. In addition to those used in daily life, there are medical use and nursing use.

In recent years, reclining beds are often used for elderly people who are physically handicapped, bedridden patients such as disabled persons, sick persons, and the like with the aging society. This reclining bed is used in hospitals, nursing homes, homes, etc., and can raise the upper body of a care recipient from the state of sleeping on his / her back during a meal.
However, when the upper body is raised by the reclining function, there is a problem that it is difficult to maintain a certain position because the body is excessively shifted downward as the backrest is raised.
In addition, when a sheet or a cover is used in combination, there is a problem that the sheet itself is slippery and slips off immediately when the upper body is raised. In addition, there is a problem that the body shifts together when the sheets are displaced.
In particular, in the case of a sick person or a care recipient who cannot step on or correct his / her posture by himself / herself, there is a risk of falling off the bed without maintaining his / her posture during the reclining operation.

  As means for solving such problems, fabrics, sheets, mats and the like having a non-slip function have been developed.

For example, Patent Document 1 discloses a non-slip fabric in which microcapsules are fixed to at least one surface of a fiber fabric substrate with a binder resin.
However, since the anti-slip fabric disclosed in Patent Document 1 has anti-slip properties on one side, the whole body is excessively fixed. Therefore, when the upper body is raised by the reclining function, the neck, shoulders, lower abdomen and the like are also fixed simultaneously with the lower body, resulting in a problem that a significant load is applied to the buttocks.

Further, in Patent Document 2, a plurality of protrusions subjected to anti-slip processing are provided at appropriate intervals, and depending on the state in which the protrusions fall down, an anti-slip effect is produced in the downward direction, and the body is easily slid in the upward direction. An anti-slip fabric that can be moved is disclosed.
According to this, it is possible to prevent the body from shifting downward and to easily return it to the original position even when it shifts downward.
However, when the backrest of the bed is tilted from the state of getting up, the body may be shifted upward from the position before getting up, and it is difficult to correct the position when the body is shifted upward. There's a problem.

JP 2002-13080 A JP 2003-166167 A

  The present invention has been made in view of the present situation, and an object thereof is to provide a sheet material that has an excellent anti-slip function and can reduce the load on the body during a reclining operation. And

  As a result of earnest research, the present inventor obtained excellent anti-slip performance and reduced the burden on the body during the reclining operation by using fabrics having different properties for the portion where the upper body abuts and the portion where the lower body abuts. The present inventors have found that the present invention can be performed and have completed the present invention based on these findings.

  That is, the present invention is a sheet material used for bedding or furniture having a reclining function, and a static friction coefficient of 0.15 or more and 0.4 or less is applied to a portion of the fabric constituting the sheet material that comes into contact with the upper body. The sheet material is made of a cloth having a coefficient of static friction of 1.0 or more at the portion where the lower body is in contact with the cloth.

  The fabric having a static friction coefficient of 1.0 or more is preferably formed by forming a non-slip layer on the surface of the base fabric.

  The anti-slip layer is preferably made of a foamable resin.

  The sheet material of the present invention is preferably used as a skin material for a bed pad.

  In addition, the sheet material of the present invention is preferably used as a chair upholstery.

  According to the present invention, since the upper body is not excessively fixed, the load on the body during the reclining operation can be eliminated. Further, since the lower body is appropriately fixed by the anti-slip effect, it is possible to prevent the body from being displaced during the reclining operation.

  The sheet material of the present invention is used for bedding or furniture having a reclining function.

  The bedding or furniture mentioned here includes chairs, beds, sofas, etc. used in daily life, as well as chairs, beds, sofas, etc., used for medical and nursing care. , Means to use when lying down. Among them, a nursing bed or a medical bed used by a person who cannot change his / her posture by himself is preferable from the viewpoint of the demand for the non-slip sheet.

  As for the sheet material of the present invention, for example, if it relates to a bed, a sheet that covers the mattress of the bed, a cover material of the bed pad that is laid on the mattress, a removable cover material that further covers the bed pad, etc. Is specifically mentioned. Further, for example, as for a chair, a chair covering area of a chair or a sofa, a removable cover material that further covers the chair or the sofa, and the like can be specifically mentioned.

  Of the fabrics constituting the sheet material of the present invention, the fabric used for the portion where the upper body abuts is required to have a static friction coefficient of 0.15 or more and 0.4 or less. If the coefficient of static friction is less than 0.15, the smoothness is too high, so the upper body may tilt sideways during reclining, or the body may slide off the bed. There is also a risk of falling. On the other hand, when the coefficient of static friction is larger than 0.4, slippage is deteriorated due to friction with the upper body, so that the user feels uncomfortable and the load on the body increases. Hereinafter, a fabric having a static friction coefficient of 0.15 or more and 0.4 or less is referred to as a smooth fabric.

  As long as the smooth fabric has a coefficient of static friction within the above range, it may be composed only of a base fabric, or may be subjected to a process for reducing friction, such as film lamination. .

  Examples of the base fabric constituting the smooth fabric include woven fabrics woven using fiber yarns, knitted fabrics woven using fiber yarns, non-woven fabrics and the like. Is preferred.

  The woven structure of the woven fabric is not particularly limited, and examples thereof include plain weave, satin weave (satin), twill weave (twill), and the like.

  The fibers used in the smooth fabric are not particularly limited, such as natural fibers, chemical fibers, and inorganic fibers. Among them, polyester fibers and nylon fibers are generally used from the viewpoint of versatility, fabric manufacturing process, physical properties, and the like. Synthetic fibers such as fibers are preferred.

  In the manufacturing process of smooth fabrics, waterproof processing, water absorption processing, dirt removal processing (SR) with dyeing processing, printing processing, water repellent processing, coating processing on the back surface, film lamination, etc., as necessary Processing), antistatic processing, flameproofing, deodorizing processing, calendar processing, and other known processing may be applied.

  Moreover, the fabric used for the part which a lower half body contacts is calculated | required that a static friction coefficient is 1.0 or more. If the coefficient of static friction is less than 1.0, sufficient slip resistance cannot be obtained, and it is difficult to sufficiently prevent the body from shifting during the reclining operation. Hereinafter, a fabric having a static friction coefficient of 1.0 or more is referred to as an anti-slip fabric.

  The anti-slip fabric can be obtained, for example, by providing an anti-slip layer on at least one side of the base fabric.

  The anti-slip layer is formed by applying a resin to the surface of the base fabric. Although it does not specifically limit as resin to be used, For example, acrylic resin, urethane type resin, rubber latex type resin etc. are mentioned.

  Such a resin is preferably used after being foamed. By foaming, the resin forms a porous structure, whereby the static friction coefficient can be improved. However, there is no problem even if the resin is used without foaming as long as the desired anti-slip property can be imparted.

  Examples of the foaming method of the resin include mechanical foaming in which air is contained in the resin by stirring with a mixer or the like and mechanical foaming is performed, and chemical foaming in which foaming is performed by including a component that expands by heat in the resin. Of these, mechanical foaming is preferred because of high physical strength such as foaming uniformity, processing stability, and wear.

  The resin forming the anti-slip layer may be appropriately provided with a pigment, an anti-blocking agent such as silicon oil or wax, and a deodorant such as zinc oxide or silver as necessary. Examples of the application method include a method of arbitrarily mixing the resin before foaming, a method of applying the resin coating after spraying, and the like.

Dry coverage of the resin is preferably 10 to 200 g / ^{m 2,} and more preferably 30 to 150 g / ^{m 2.} If the dry adhesion amount is less than 10 g / m ² , the intended static friction coefficient may not be obtained. On the other hand, if it exceeds 200 g / m ² , the fabric may become heavier, harder, or may have a bad texture, and the cost will be increased, which is not economical.

  As a method for coating such a resin; a method for coating the entire surface by a knife coater, a comma coater, etc .; a method for coating a whole surface or a part by rotary printing, screen printing, etc .; a method for coating a part by gravure, spray, etc. A known technique such as a method of processing may be employed. Of these, coating with a knife coater is preferable in terms of wear resistance, washing resistance, and uniformity.

  In addition, as a pretreatment for applying such a resin, it is preferable to subject the base fabric to a water repellent treatment by a conventional method. Thereby, it can suppress that resin applied by a post process oozes out to the back surface of a base fabric.

  The base fabric constituting the anti-slip fabric is not particularly limited, and examples thereof include woven fabrics woven using fiber yarns, knitted fabrics knitted using fiber yarns, and non-woven fabrics. . Further, the base fabric structure is not particularly limited, and may be appropriately selected according to the use or purpose.

  The fiber used for the anti-slip fabric is not particularly limited, such as natural fiber, chemical fiber, inorganic fiber, etc. Among them, polyester fiber, nylon fiber from the viewpoint of versatility, fabric manufacturing process, physical properties, etc. Synthetic fibers such as fibers are preferred.

  In addition to the water-repellent process, the anti-slip fabric used in the present invention may be dyed, printed, waterproofed, such as coating or film lamination, dirt-removed (SR processed), if necessary in the manufacturing process. You may give well-known processes, such as a flame-proof process and a deodorizing process.

  Hereinafter, in order to facilitate understanding of the present invention, specific examples will be described. However, the present invention is not limited thereto, and is appropriately selected according to the shape and use of bedding or furniture having a reclining function. can do.

As an example of the sheet material of the present invention, a bed pad used for a nursing bed having a reclining function will be described.
FIG. 1 is a schematic explanatory diagram of a bed pad as an example of the present invention.

  A bed pad is a pad that is used on a mattress or mattress of a bed.

  The bed pad 1 which is an example of the present invention uses the smooth fabric 2 and the smooth fabric 3 for the skin material of the portion where the upper body abuts and the skin material of the back side thereof, and the skin material of the portion where the lower body abuts and An anti-slip fabric 4 and an anti-slip fabric 5 are used for the skin material on the back side. These skin materials are sewn in a shape as shown in FIG. 1 to form a bed pad, and have a cushion material (not shown) inside.

  Here, the part where the upper body abuts means the part where the upper body of the body abuts when the bed pad is placed on the bed, and is generally the refracted part of the bed pad that is generated when the backrest part of the reclining bed is raised. Point to the upper surface. The part where the lower body abuts means the part where the lower body of the body abuts when the bed pad is placed on the bed, and is below the refracted part of the bed pad that occurs when the backrest part of the reclining bed is raised. Point to the side.

  The bed pad prevents the upper body from being excessively fixed by using a smooth fabric for the skin material of the portion where the upper body abuts.

  The skin material corresponding to the back side of the part where the upper body abuts is not particularly limited, but among them, by using a smooth fabric, the bed pad part supporting the upper body slides appropriately with respect to the bed according to the reclining operation, The posture can be changed more smoothly.

  On the other hand, the skin material at the part where the lower body abuts and the skin material on the back side of the lower body use an anti-slip fabric to appropriately fix the lower body and prevent the bed pad itself from shifting.

  The cushion material used for the bed pad is not particularly limited, and examples thereof include urethane foam.

  The bed pad may be used in combination with other bedding such as bed sheets.

  As another example of the present invention, the sheet material of the present invention can be used as a bedding or furniture upholstery having a reclining function. In that case, it is required to use the smooth fabric as the upper fabric of the portion where the upper body abuts and the anti-slip fabric as the upper fabric of the portion where the lower body abuts.

  In addition, the shape of the sheet material according to the present invention can be appropriately determined according to the shape of the bedding or furniture having a reclining function.

  In the sheet material of the present invention, it is important that a smooth cloth is disposed at a portion where the upper body abuts, and an anti-slip fabric is disposed at a portion where the lower body abuts. As long as the combination and arrangement are satisfied, the smooth fabric and the non-slip fabric need not be stitched.

EXAMPLES Hereinafter, although this invention is demonstrated more concretely based on an Example, this invention is not limited to these Examples. In addition,% in an Example means weight% and a part means a weight part.
The evaluation performed in the examples was performed according to the following method.

(1) Criteria for determining fabric [Static friction coefficient]
Based on JIS A 1407, it measured using the static friction coefficient measuring machine (made by HEIDON).
The test piece was fixed to the rising plate, and a plain woven fabric of 100% cotton (a plain fabric with a basis weight of 200 g / m ² using 50th cotton yarn for warp and weft) was attached to the flat indenter. The rising plate in the horizontal state was tilted simultaneously with the start of measurement, and the angle of the rising plate at the time when the flat indenter started to slide was measured. And the static friction coefficient was calculated | required from the measured angle.
In addition, the upper limit of the static friction coefficient measurable with the measuring machine used this time is 1.6.

(2) Evaluation of anti-slip property of the portion where the lower body abuts The lower body during the reclining operation using the bed pads listed in the examples and comparative examples shown in Table 1 and being actually used by being installed in a nursing bed having a reclining function The anti-slip property of the part in contact with was evaluated according to the following evaluation criteria.

Evaluation criteria for anti-slip property of the part where the lower body abuts ○: Anti-slip effect.
X: A sufficient anti-slip effect cannot be obtained.

(3) Evaluation of load on the body Using the bed pads listed in the examples and comparative examples shown in Table 1, it is actually used by being installed in a nursing bed having a reclining function, and the neck, shoulder, The load on the lower abdomen, buttocks, etc. was evaluated according to the following evaluation criteria.

Evaluation criteria for load ○: It is a level that does not feel load (for neck, shoulder, lower abdomen, buttocks, etc.).
Δ: There is no problem in use.
X: A large load is felt.

(4) Comprehensive usability evaluation The comprehensive usability evaluation of the bed pads listed in the examples and comparative examples shown in Table 1 was performed according to the following evaluation criteria.

Comprehensive evaluation criteria ○: Usability is good.
Δ: There is no problem in use.
X: A feeling of use is bad.

In addition, in the evaluation of the comprehensive feeling of use, what was judged as “good” (good feeling of use) was regarded as acceptable.

[Production of fabric]
Fabrics 1 to 9 used for the bed pads of Examples and Comparative Examples were produced by the method shown below.

[Fabric 1]
A regular polyester yarn having a warp and weft of 250 dtex / 48 filaments was used to produce a 3/2 twill having a warp density of 120 yarns / inch and a weft density of 98 yarns / inch. The resulting fabric 1 had a static friction coefficient of 0.15.

[Fabric 2]
A satin woven fabric having a warp density of 120 yarns / inch and a weft density of 90 yarns / inch was prepared using regular polyester yarns having warps and wefts of 55 dtex / 36 filaments. The resulting fabric 2 had a static friction coefficient of 0.22.

[Fabric 3]
A regular polyester yarn having 167 dtex / 72 filaments as the warp and weft was used to produce a plain fabric having a warp density of 100 yarns / inch and a weft density of 80 yarns / inch. The resulting fabric 3 had a static friction coefficient of 0.35.

[Fabric 4]
Using a regular polyester yarn of 84 dtex / 36 filaments, a smooth knitted fabric having a yarn density of 40 yarns / inch in the course direction and a yarn density of 28 yarns / inch in the well direction was produced by a circular knitting machine.
Subsequently, the film-formation thing which consists of a composition shown to prescription 1 was coated on the release paper so that the coating amount might be 50 g / m < ² >, and the urethane film was produced. Next, the urethane film was coated with an adhesive having the composition shown in Formula ² so that the coating amount was 20 g / m ^2, and then dried under a condition of 100 ° C. in a drier, and the dry lamination technique was used. The fabric 4 was produced by bonding to the surface of the smooth tissue knitted fabric. The static friction coefficient of the obtained fabric 4 was 0.35.

Formulation 1: Urethane film composition Crisbon 5116ELD (Dainippon Ink Chemical Co., Ltd., urethane resin) 100 parts DMF 25 parts Toluene 25 parts

Formulation 2: Adhesive composition Crisbon TA-170 (Dainippon Ink Chemical Co., Ltd., urethane adhesive) 100 parts Barnock DN950 (Dainippon Ink Chemical Co., Ltd., cross-linking agent) 10 parts Accel T (Dainippon Ink Chemical Co., Ltd.) Industrial Co., Ltd., accelerator) 1 part Toluene 50 parts

[Fabric 5]
A fabric was produced in the same manner as the fabric 4 except that the lamination process was not performed. The resulting fabric 5 had a static friction coefficient of 0.45.

[Fabric 6]
A regular polyester yarn having 22 dtex monofilaments for warp and weft was used to produce a plain woven fabric having a warp density and a weft density of 150 yarns / inch. The resulting fabric 6 had a static friction coefficient of 0.10.

[Fabric 7]
A regular polyester filament yarn having 84 dtex / 36 filaments was used as the warp and weft, and a plain woven fabric having a warp density of 75 yarns / inch and a weft density of 50 yarns / inch was prepared and subjected to scouring and dyeing. Next, a water repellent treatment liquid having the composition shown in Formula 3 was padded, dried at 120 ° C. for 2 minutes, and further heat-treated at 170 ° C. for 1 minute.

Formulation 3: Water repellent treatment composition AG-7000 (manufactured by Meisei Chemical Co., Ltd., fluorine water repellent) 2%
98% water

Next, an anti-slip agent having the composition shown in Formula 4 was mixed and stirred with a mixer to cause mechanical foaming, and this was applied to the water-repellent treated fabric using a knife coater so that the dry adhesion amount was 70 g / m ² . Fabric 7 was produced by heat treatment at 110 ° C. for 1 minute.

Formulation 4: Anti-slip agent composition DICNAL K-2505 (Dainippon Ink Chemical Co., Ltd., acrylic resin) 100 parts DICNAL M-20 (Dainippon Ink Chemical Co., Ltd., foam stabilizer) 3 parts DICNAL M-40 ( Dainippon Ink Chemical Co., Ltd., foam stabilizer) 4 parts DICNAL MX (Dainippon Ink Chemical Co., Ltd., thickener) 0.5 parts Ammonia 2.8% aqueous solution 0.5 parts

The resulting fabric 7 had a static friction coefficient of 1.6.

[Fabric 8]
Fabric 8 was produced in the same manner as Fabric 7 except that the resin having the composition shown in Formula 5 was applied using a knife coater so that the dry adhesion amount was 60 g / m ² without foaming. .

Formulation 5: Resin composition DICNAL K-2505 (Dainippon Ink Chemical Co., Ltd., acrylic resin) 100 parts DICNAL MX (Dainippon Ink Chemical Co., Ltd., thickener) 0.5 parts Ammonia 2.8% aqueous solution 0.5 part

The resulting fabric 8 had a static friction coefficient of 1.0.

[Fabric 9]
Fabric 9 was produced in the same manner as Fabric 7, except that the resin having the composition shown in Formula 6 was used without foaming.

Formulation 6: Resin composition DICNAL K-2523 (Dainippon Ink Chemical Co., Ltd., acrylic resin) 100 parts DICNAL MX (Dainippon Ink Chemical Co., Ltd., thickener) 0.5 parts Ammonia 2.8% aqueous solution 0.5 part

The resulting fabric 9 had a static friction coefficient of 0.8.

[Example]
Combining the fabric as shown in Table 1 with respect to the four parts of the skin material corresponding to the upper body and the back side, the skin material corresponding to the lower body, and the skin material corresponding to the back side constituting the bed pad. The bed pads of Examples 1 and 2 and Comparative Examples 1 to 6 were produced by sewing.
[Evaluation]
For the bed pads of Examples 1 and 2 and Comparative Examples 1 to 6, the anti-slip property of the portion with which the lower body abuts, the load on the body, and the overall feeling of use were evaluated. The results are shown in Table 1.
In Table 1, the numerical value described together with the fabric number is the static friction coefficient of the fabric.

The bed pads of Examples 1 and 2 all had a reduced feeling on the body and a good feeling of use.
Since the bed pad of Comparative Example 1 used a smooth fabric for all, it was not possible to prevent the body from slipping during the reclining operation, and the bed pad itself was also displaced during the reclining operation.
Since the bed pad of Comparative Example 2 used an anti-slip fabric, it was possible to prevent the lower body from slipping, but the upper body was also fixed, and a load was applied to the body during the reclining operation. .
The bed pad of Comparative Example 3 had poor upper body slipperiness, and the load on the body during the reclining operation was not reduced.
In the bed pad of Comparative Example 4, the upper body was too slippery, so that the upper body was inclined in the lateral direction during the reclining operation, and the posture could not be maintained.
The bed pad of Comparative Example 5 did not have sufficient slip resistance at the part where the lower body abuts, and could not prevent the body from slipping during the reclining operation.
The bed pad of Comparative Example 6 uses an anti-slip fabric on the entire back side, so that the bed pad itself does not shift during the reclining operation, but because the smooth fabric is used on the entire front side of the bed pad, the body slips. Therefore, the intended effect cannot be obtained.

Schematic explanatory drawing of the bed pad which is an example of the present invention.

Explanation of symbols

1 Bed pad 2 Smooth fabric (front side)
3 Smooth fabric (back side)
4 Anti-slip fabric (front side)
5 Anti-slip fabric (back side)

Claims (5)

  It is a sheet material used for bedding or furniture having a reclining function, and a fabric having a static friction coefficient of 0.15 or more and 0.4 or less is used for a portion of the fabric constituting the sheet material that comes into contact with the upper body, and A sheet material made of a fabric having a coefficient of static friction of 1.0 or more at a portion where the lower body abuts.   The sheet material according to claim 1, wherein the fabric having a static friction coefficient of 1.0 or more is formed by forming an anti-slip layer on the surface of the base fabric.   The sheet material according to claim 2, wherein the anti-slip layer is made of a foamable resin.   The sheet material according to any one of claims 1 to 3, wherein the sheet material is a skin material of a bed pad.   The sheet material according to any one of claims 1 to 3, wherein the sheet material is a chair stretch fabric.

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