JPH08164157A - Absorbing implement - Google Patents

Abstract

PURPOSE: To provide an absorbing implement which has a high absorption rate and absorption capacity to a liquid material and has a simple structure. CONSTITUTION: This absorbing implement 1 has an absorbing body part 2 which is formed of a noncompressible cellulose sponge to a planar form and one to plural contact absorbing parts 3 which are formed likewise of the noncompressible cellulose sponge to a width smaller than the width of this absorbing body part 2 so as to project from the edge of the absorbing body part 2 in a direction nearly along the plate surface thereof and absorb the liquid material by coming into contact with the liquid material at their front ends 3a. The absorbing body part 2 is capable of absorbing and holding the liquid material via these contact absorbing parts 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hygienic absorbent device, particularly an absorbent device for promptly absorbing liquid substances such as blood, physiological saline, and reflux liquid during operations such as ophthalmology, otolaryngology, and brain surgery. Regarding

[0002]

2. Description of the Related Art The following has been conventionally devised as the above-mentioned absorber. Japanese Utility Model Publication 60-7706 and 7707 SUMMARY OF THE INVENTION A compressed resin plate obtained by heating and pressing a viscose material is laminated with a synthetic resin film such as polyethylene and cut into absorption strips having sharp edges. The sharp corner is brought into contact with the liquid substance to absorb and retain the liquid substance. Japanese Utility Model Publication No. 56-51852. A thin paper-like material is made of an absorbent material such as viscose rayon,
The thin paper-like material is gathered in a rod shape and the outer circumference thereof is surrounded by the thin paper-like material, and an acute-angled absorption end portion for contacting with a liquid substance is formed at the tip. The absorbent material obtained by compressing and pressing a synthetic resin foam material having open cells is inserted into a transparent or translucent synthetic resin tube, and a part of the absorbent material is projected from the tube, and its tip end is inserted. A sharp edge is formed by cutting.

However, the above-mentioned conventional absorber has the following drawbacks. With regard to the absorber, the absorbency is slightly insufficient, and since it is formed in a strip shape, the absorption capacity per piece is small. For example, in eye surgery, etc., it is troublesome because it is necessary to change the absorbent material frequently (for example, 10 times or more).
Further, since the material is compressed, the absorbent material swells with the absorption of the liquid substance, which obstructs the field of view during the operation, resulting in a decrease in operability. As for the absorbent device, the absorbent material is formed in the shape of a thin paper, so when it comes into contact with a liquid substance to absorb it, the tip part is loosened and the loosened part blocks the visual field. Operability is reduced. As for the absorber, since the synthetic resin material is used, there is a drawback that the absorption speed is slightly inferior. In addition, the absorbability of the part that has once contacted with the liquid substance may be lowered, and it is troublesome to cut this out and to expose a new part at the next use. In addition, there is a problem that it may expand due to absorption of water to block the field of view of the microscope.

An object of the present invention is to provide an absorber having a large absorption rate and absorption capacity for a liquid substance and a simple structure.

[0005]

In order to solve the above-mentioned problems, the absorbent article of the present invention comprises an absorbent main body formed in a plate shape by an uncompressed cellulose sponge, and an absorbent main body also formed by an uncompressed cellulose sponge. One or a plurality of absorbers that are formed to be narrower than the absorbent main body and project from the edge of the absorbent main body in a direction substantially along the plate surface thereof and contact the liquid substance at the tip end thereof to absorb the liquid substance. And a contact absorbing part. And the absorption body part,
The liquid substance is absorbed and held through the contact absorption part. By using a non-compressed sponge, it is possible to suppress the volume expansion of the contact absorption part or the absorption main body due to the absorption of the liquid substance, and the field of view of the microscope is not narrowed even during surgery and the operability is good. .

Here, the non-compressed cellulose sponge means a product obtained by drying a wet cellulose sponge without applying compression. In this case, for example, in the manufacturing process of the cellulose sponge, water or a solution containing water as a main component may be impregnated into the cellulose sponge until it is almost saturated, and then dried without applying pressure. . You may use what was manufactured by adding the soft material, such as glycerin, to the said impregnating aqueous solution. In such a cellulose sponge, the pores are not crushed in a dry state and the porous state is maintained. The density of the cellulose sponge and the average diameter of its pores are preferably set so that the absorption capacity of the liquid substance does not become too small and the absorption rate does not decrease too much. In this case, the range of the density D defined by the following formula is 0.030 to 0.040, preferably 0.034 to 0.037: D = W / V (unit: g / cm ³ ) ( ) W: Weight in dry state (unit: g), V: Volume of sponge in a state of absorbing 50% of the total amount of water that can be absorbed (unit: cm ³ ). The average diameter of the pores is 0.8 to 1.6 mm, preferably 1.0 to 1.4 mm. Further, the maximum pore diameter is 2.3 mm or less, preferably 2 mm or less.

Commercially available products of cellulose sponge include Toray Cellulose Sponge (Toray Fine Chemical Co., Ltd.).
Manufactured by Spontex Cellulose Sponge (trade name by Spontex) can be used.

The contact absorbing portion can be formed in a shape in which the width is reduced from the base end side toward the tip end side.

The absorbent main body may be provided with a gripping holder part made of a waterproof material. Also,
The absorbent body can be folded back in the middle of its plate surface.
The number of folds for folding back may be one or plural.

A sheet-like or layer-like superabsorbent polymer part can be arranged on at least one plate surface side of the absorbent main body part. In this case, in addition to the aspect of arranging the superabsorbent polymer part on the plate surface of the absorbent main body in a laminated manner, when the absorbent main body is folded back, the superabsorbent polymer is placed inside the folded back absorbent main body part. A configuration in which the parts are arranged is also possible. Here, as the super absorbent polymer for forming the super absorbent polymer portion, for example, crosslinked polyacrylate,
Granules or powders of starch-acrylic acid graft copolymer cross-linked products, carboxymethyl cellulose-based polymers and the like can be used. Also, a sheet formed in advance can be used.

Commercially available superabsorbent polymers are powdery ones such as ALASORP (trade name, manufactured by Arakawa Chemical Co., Ltd.), POISE (trade name, manufactured by Kao Co., Ltd.), and Sunwet (Sanyo Kasei Co., Ltd.). Co., Ltd., trade name, Sumikagel (Sumitomo Chemical Co., Ltd. trade name), Alonzap (Toa Gosei Kagaku Co., Ltd. trade name), Aqua Reserve (Nippon Gosei Kagaku Co., Ltd. trade name) , Aqualic (Nippon Shokubai Co., Ltd.)
Manufactured by Mitsubishi Chemical Co., Ltd., trade name, etc. can be used. On the other hand, as the sheet-shaped superabsorbent polymer, for example, one formed into a non-woven fabric can be used, and commercially available products thereof include Bell Oasis (trade name of Kanebo Co., Ltd.) and Lanseal (Toyobo ( Manufactured by Shin Oji Paper Co., Ltd., etc. can be used.

Further, a sheet-like non-woven fabric-shaped product can be arranged between the super absorbent polymer part and the absorbent body part. It is desirable that the non-woven fabric is formed of hydrophilic fibers whose surface is easily wet with water, such as viscose rayon,
A regenerated cellulose fiber-based material such as cupra (trade name: Bemberg) is excellent in the liquid absorption effect due to the capillary phenomenon and has a large water-retaining property, so that it can be suitably used in the present invention. In addition to this, cotton fiber,
Wood pulp fibers, cellulose acetate fibers, acrylonitrile fibers and the like, or mixtures thereof can also be used.

A waterproof coating may be provided so as to cover all or part of the surface of the absorbent main body. The waterproof coating portion can be formed also on the portion of the contact absorbing portion excluding the tip portion. The waterproof coating portion can be made of a waterproof resin film such as polyester, polypropylene, polyvinyl chloride, ethylene vinyl acetate resin. In this case, the resin film can be wound around the absorbent main body or the contact absorbent, or the absorbent main body or the contact absorbent can be inserted into a resin film body formed in a tubular shape in advance. It is also possible to form the waterproof coating part by applying it to the surface of the contact part or the contact absorbing part and then solidifying the resin component. The waterproof coating portion can also be used as the holder portion for gripping. Further, it is also possible to wind the above-mentioned resin film around the outer side of the absorbent main body in a folded state, or to accommodate the folded back of the absorbent main body in the tubular resin film body. In this case, the waterproof coating portion such as the resin film or the film body also serves as a holding member for holding the absorbent main body portion in the folded state.

The waterproof coating portion may be a fibrous product sheet mainly composed of hydrophobic fibers. As the fiber-formed sheet to be used, those formed into a non-woven fabric from resin fibers such as polyethylene, polypropylene and polyester can be preferably used, and spunbonded non-woven fabric can be particularly preferably used. Since such a fibrous product sheet has air permeability, air can easily escape from the absorbent main body portion and the absorption speed can be increased, as in the case of using the resin film portion having holes. In addition,
When using the fiber forming sheet as described above, it is desirable that the sheet be waterproofed. In this case, the waterproof treatment is performed by applying a water repellent agent containing a hydrophobic compound such as paraffin wax, silicones, fluoroalkylated acrylic acid ester or fluoroalkylated methacrylic acid ester, pyridinium salts, and long chain alkyl-substituted ethylene urea. A method of applying it to the surface, a method of partially closing the voids formed in the fiber-forming material with rubber or latex that does not allow water or air to permeate, and the like can be used. Alternatively, a method of laminating a porous film of a fluororesin on a fiber-formed product sheet may be used, and a commercially available product (for example, GORE-TEX etc.) of a fiber-formed product sheet preliminarily laminated with such a porous film is used. May be.

At least the surface of the contact absorbing portion can be coated with a polymer which is substantially insoluble in water and hydrophilic. Specific examples of the hydrophilic polymer include, for example, a polymer of 2-hydroxyethyl methacrylate (2HEMA) or 2-hydroxyethyl acrylate, or a copolymer containing 2-hydroxyethyl methacrylate or 2-hydroxyethyl acrylate as a main component. Coalescence can be preferably used.

Further, at least one of methacrylic acid and acrylic acid is added to the above monomers in a total amount of 15 mol%.
By adding and copolymerizing within the following range (preferably 10 mol% or less), the water content of the polymer film can be improved, and the flexibility of the film can be improved. . In order to obtain the above effects sufficiently, the addition amount should be 2
It is good to set it as mol% or more, preferably 5 mol% or more.

Further, by adding vinyl acetate within the range of 50 mol% or less, preferably 40 mol% or less,
A softer coating can be obtained. Vinyl acetate is
It can also be co-added with methacrylic acid or acrylic acid within the above range. In order to sufficiently obtain the effect of softening, the addition amount is preferably 20 mol% or more, and more preferably 30 mol% or more.

In place of vinyl acetate, methyl methacrylate of methacrylic acid is 30 mol% or less, preferably 20 mol%.
It can also be added within the following range. In this case, appropriate strength is imparted to the coating, and a so-called elastic contact absorbing portion can be obtained. To obtain the above effects sufficiently,
The addition amount is 10 mol% or more, preferably 15 mol% or more. Here, the same effect can be obtained by using an aromatic ester or a cycloalkyl ester of methacrylic acid instead of the methyl ester of methacrylic acid. In this case, the addition amount thereof is preferably set within the range of 1 to 10 mol%, desirably 2 to 5 mol%. The above esters can be added in combination.

Further, as the hydrophilic polymer, polyvinyl alcohol having a saponification degree of 15 to 50 mol% can be used. If the degree of saponification is less than 15 mol%, the hydrophilicity is lowered and the absorption rate in the contact absorption part is lowered. If the degree of saponification exceeds 50 mol%, the polymer film will be easily dissolved in water and cannot be used repeatedly. Therefore, the saponification degree is set within the above range. In this case, the saponification degree is preferably set in the range of 20 to 45 mol%, more preferably 25 to 40 mol%.

As a method for coating the hydrophilic polymer as described above, a predetermined amount of the polymer is ethanol,
A method of dissolving in a solvent such as ethanol for disinfection, methanol, immersing the contact absorption part in the solution to impregnate the solution, and then evaporating the solvent can be exemplified. In this case, the polymer concentration in the solution is preferably set within the range of 0.05 to 10% by weight. Polymer concentration is 0.0
If it is less than 5% by weight, the amount of resin impregnated becomes insufficient and the desired effect cannot be achieved. On the other hand, if it exceeds 10% by weight, the amount of resin impregnated becomes excessive and the absorption rate decreases. The polymer concentration is preferably 0.1 to 5% by weight, more preferably 0.2 to 3%.

The hydrophilic polymer coating can be applied to the entire contact absorption part, and further to a part or the whole of the absorption main body part.

The contact absorber can be covered with a fibrous product sheet. As a result, it is possible to suppress the disturbance of the shape of the contact absorbing portion when absorbing the liquid substance, and since the liquid substance once absorbed is less likely to seep out, the operability is improved. Examples of usable fiber-forming products include viscose rayon, regenerated cellulose fibers such as cupra, cotton fibers, hydrophilic non-woven fabrics mainly composed of hydrophilic fibers such as wood pulp fibers, polyethylene, polypropylene,
It may be a non-woven fabric mainly composed of a hydrophobic fiber such as polyester.

[0023]

In the absorbent article of the present invention, since the absorbent main body portion and the contact absorbent portion are made of cellulose sponge, the absorption rate of the liquid substance is extremely high. Also. Since the non-compressed cellulose sponge is used, the contact absorption part does not expand due to the absorption of the liquid substance, and the visual field is not obstructed during the operation, so that the operability is good. Further, the structure is simple, and it can be formed by cutting or punching from a plate-shaped cellulose sponge, so that it is inexpensive.

By providing the above-mentioned absorber with the holder portion for gripping, it is possible to handle the absorbed liquid substance without the hands and the like getting wet. Further, the absorption capacity can be further increased by providing the super absorbent polymer portion.

Further, by coating the tip of the contact absorption part with a hydrophilic polymer, the strength of the tip is moderately increased to facilitate the handling of the absorber, and the cellulose sponge scraps and the like are prevented from falling off at the tip. can do.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 shows an example of an absorber of the present invention. The absorber 1 of FIG. 1 (a) is entirely formed of a non-compressed cellulose sponge plate material, and has a trapezoid-shaped absorbent main body 2 and a contact absorber 3 narrower than it. It has and. Trapezoidal absorption body 2
Is substantially parallel to two sides 2a and 2b and non-parallel two sides 2c
And 2d, and the side 2c is formed so as to be substantially orthogonal to the sides 2a and 2b. And the contact absorption part 3
Of the two parallel sides 2a and 2b is formed in an equal width shape projecting along the plate surface of the absorbent main body 2 in such a manner that the edge on the long side 2b side is extended to the oblique side 2d side. The tip portion 3a is formed in an acute angle shape that is inclined to one side and is obliquely cut off from both sides, and is further coated with a hydrophilic polymer. In the coating, for example, the tip portion 3a is made of a hydrophilic polymer (for example, poly-2-hydroxyethyl methacrylate) in a predetermined amount (for example, 2% by weight).
After dipping in the contained ethanol solution, evaporate the ethanol.
It is done by drying. Although it is in the state of being coated with a hydrophilic polymer, when the polymer layer is formed in a film shape on the surface of the contact absorption part 3, when the polymer is impregnated in the sponge-like formation forming the contact absorption part 3, There may be various modes such as the case where both are combined. A holder portion 7 for gripping can be attached to the edge portion of the absorbent main body portion 2 as shown by a two-dot chain line in the figure.
As shown in FIG. 1B, the holder portion 7 can be formed, for example, as a plastic member having a shape in which a plate member is folded back at an intermediate portion, and the holder 7 is opened from the opening 7 a to the contact absorbing portion 3.
It can be mounted by inserting the edge of the.

Hereinafter, a more specific structural example of the absorber 1 and an experimental example using the same will be described. First, the absorber 1 was produced by cutting a Toray cellulose sponge cloth type (manufactured by Toray Fine Chemical Co., Ltd.). The cellulose sponge had a dry thickness of about 3 mm, the density D was 0.035 g / cm ³ , the average diameter of pores was 1.26 mm, and the maximum diameter was 1.68 mm.
The lengths of the sides 2a, 2b and 2c of the absorbent body 2 are 25 mm, 45 mm and 50 mm, respectively, and the contact absorbent 3 has a length of 30 mm and a width of 7 mm. When physiological saline was absorbed from the tip portion 3a to the absorber 1, the absorption amount was 4.1 g after 1 minute and 6.1 g after 2 minutes, and it was found that both the absorption rate and the absorption capacity were large. It was

(Embodiment 2) The absorber 11 shown in FIG. 2 is provided with a trapezoidal absorbent main body 2 as in Embodiment 1,
The contact absorption part 3 includes two parallel sides 2 a and 2 of the absorption main body part 2.
Of b, the edge portion on the short side 2a side is formed to project to the oblique side 2d side.

The absorbent 11 was produced by cutting the same cellulose sponge plate material as in Example 1. The lengths of the sides 2a, 2b and 2c of the absorbent body 2 were 60 mm, 75 mm and 40 mm, respectively, and the contact absorbent 3 had a length of 40 mm and a width of 7 mm. Further, the tip portion 3a was coated with a hydrophilic polymer as in Example 1. When physiological saline was absorbed into the absorber 11 from the tip portion 3a, the time change of the absorption amount was as shown in Table 1.

[0030]

[Table 1]

It can be seen that the absorber 11 has a large absorption rate and a large absorption capacity.

(Embodiment 3) In the absorber 31 shown in FIG. 3, both ends of the tip end portion 31a of the cellulose sponge plate material formed in a vertically long triangular shape are cut, and the portion narrowed by the cutting is the contact absorption portion. 3 and others form the absorbent body 2.

The absorbent 31 was produced by cutting the same cellulose sponge plate material as in Example 1. The width 2a of the rear end of the absorbent body 2 is 28 mm, the length 2b of the absorbent body 2 is 48 mm, and the length 3b of the contact absorber 3 is 7 mm.
mm. Further, the tip portion 3a was coated with a hydrophilic polymer as in Example 1. This absorber 3
On the other hand, when physiological saline was absorbed from the tip portion 3a, the absorption amount after 30 seconds was as large as 4.7 g.

(Embodiment 4) In the absorber 41 shown in FIG. 4, the contact absorbing portion 3 is formed by projecting an edge portion along one side of the rectangular absorbing main body portion 2 in the extension direction thereof. . The width of the contact absorption portion 3 decreases from the base end portion side toward the tip end portion 3a side, and the tip end portion 3a is formed in an acute angle.

The absorbent 41 was produced by cutting the same cellulose sponge plate material as in Example 1. Here, the width 2a of the rear end of the absorbent body 2 is 40 mm, the length 2b of the absorbent body 2 is 55 mm, and the length 3b of the contact absorbent 3 is 4 mm.
It was set to 2 mm. Further, the tip portion 3a was coated with a hydrophilic polymer as in Example 1. The absorbent 41 was made to absorb physiological saline from the tip 3a.
As a comparative example, as shown in FIG. 5, an absorbent member 101 formed by cutting a cellulose sponge plate material of the same material into a strip shape having a width of 10 mm and a length of 115 mm was prepared from one end side of saline solution. Absorbed. Table 2 shows the results.

[0036]

[Table 2]

It can be seen that the absorption amount of the absorption device 41 of the embodiment is twice or more the absorption amount of the absorption device 101 of the comparative example.

(Embodiment 5) FIG. 6 shows an example of an absorbent article in which the absorbent main body 2 is folded back at an intermediate portion, and the superabsorbent polymer portion is disposed therebetween. First, as shown in FIG. 6A, a preform 51 having a shape similar to that of the absorber 41 of the fourth embodiment is obtained by cutting the cellulose sponge plate material.
Create a. Next, as shown in (b), the non-woven fabric sheet 43 is lightly sprayed with water to moisten it, and a powdery super absorbent polymer is sprinkled thereon to form a layered super absorbent polymer part. 40 is formed, and another non-woven fabric-formed product sheet 43 is further stacked thereon and pressure-bonded to form a laminate 49. The superabsorbent polymer part 40 absorbs the water of the sheet 43 and swells, and at the same time, the nonwoven fabric sheet 4
Since an adhesive force is generated between the superabsorbent polymer 3 and the sheet 43 and the sheet 43 is integrated with the above pressure bonding, the superabsorbent polymer powder is less likely to fall off. This laminated body 49 was cut into a predetermined shape (for example, a strip shape).

Next, as shown in FIG.
On the other hand, the absorbent main body 2 is folded back at its intermediate portion so that a fold line appears along the longitudinal direction of the contact absorption portion 3, and the cut laminated body 49 is sandwiched between the folded back inner side and the laminated body. Spare body 5 with 49 sandwiched
The absorber 51 is obtained by covering the 1a with the waterproof coating portion 54 formed of a resin film or the like. The waterproof coating 5
Reference numeral 4 denotes the contact absorption portion 3 and the outside of the folded absorption main body portion 2.
Covering the base end of. Here, the contact absorption part 3 may be covered with a regenerated cellulose-based nonwoven fabric 3c.

A more specific structural example of the absorber 51 and an experimental example using the same will be described below. First,
The same cellulose sponge plate material as that used in Example 1 was cut to prepare a preform 51a shown in FIG. 6 (a). Here, the width 2a of the rear end of the absorbent body 2 was 34 mm, the length 2b of the absorbent body 2 was 40 mm, the length 3b of the contact absorber 3 was 40 mm, and the width of the contact absorber 3 was 12 mm. Further, the tip portion 3a was coated with a hydrophilic polymer as in Example 1. Next, as a non-woven fabric sheet, TCF40
25 WJ (manufactured by Nimura Chemical Co., Ltd., weight per unit area: 25 g / m ² ) was used as a super-absorbent polymer powder using Sunwet IM-6320 (manufactured by Sanyo Kasei Co., Ltd.) to form the above-mentioned laminate. Body 49 was created. The amount of superabsorbent polymer sprayed onto the non-woven fabric sheet was about 3.7.
It was set to mg / cm ² . Then, the absorbent main body 2 is folded back, and the laminate 49 is cut into a width of 10 mm and a length of 30 mm so as to be sandwiched between the two, and the outside is covered with a vinyl chloride resin film (waterproof coating). The absorber 51 was obtained. The absorbent 51 was made to absorb physiological saline from the tip portion 3a. As a comparative example, the same experiment was carried out when the preform 51a was used alone without using the laminate 49. The results are shown in Table 3.

[0041]

[Table 3]

As for the one in which the laminated body 49 is sandwiched,
It can be seen that the absorption capacity is increased as compared with the one that was not sandwiched.

As a similar example, as shown in FIG. 7A, a preliminary body 51b having a shape in which a plurality of preliminary bodies 51a having the same shape as described above are connected in the lateral direction is manufactured,
As shown in (b), the preliminary body 51b is folded back like a folding screen so that a fold line is formed in the middle of each absorbent main body 2.
Further, as shown in (c), it is possible to sandwich the laminated body 49 in all or part of the valley portion V1 generated by folding back of the absorption main body portion 2. The laminated body 49 is a preliminary body 51.
Can also be sandwiched in the valley portion V2 (b) formed on the back surface side of. As shown in FIG. 7 (c), each contact absorbing part 3 is bound by a flexible member 3d such as a thread or a belt, or by using a fastening member penetrating them in the plate thickness direction,
Can be combined with each other. Further, as shown in FIG. 8, the absorbent body 2 can be folded back so that a fold appears in a direction intersecting the longitudinal direction of the contact absorber 3.

(Embodiment 6) The absorber of the present invention can be constructed in various shapes or modes in addition to the above construction. The absorber 61 shown in FIG. 9A has a center line 2e.
With respect to the absorbent body 2 having a substantially symmetrical shape with respect to
The contact absorption portion 3 is formed along the center line 2e. Further, the absorbent main body 2 is formed in a shape in which an inclined portion 2d is formed in the vicinity of the connecting portion with the contact absorption portion 3, and the width is reduced toward the contact absorption portion 3 side. Absorption body 2
Can be folded back along the center line 2e as shown in FIG. 9 (b).

In the absorber 71 shown in FIG. 10, the edges of the absorbent body 2 and the contact absorber 3 are linearly connected to form an equilateral triangle. In this case, each of the three corners of the triangle can be used as the contact absorber 3. That is, it can be considered that three contact absorbing portions 3 are formed for one absorbing body portion 2. In addition,
The holder part 7 made of resin is attached to the edge part of the absorber 71 corresponding to one side part of the triangle. This holder part 7
The mounting position can be changed as appropriate depending on which corner portion the contact absorbing portion 3 formed on is used. On the other hand, in the absorber 81 shown in FIG. 11, each side of a sponge plate material formed in a square shape is curved inward and each corner portion is formed with an acute angle, and the corner portions are in contact with each other. It can be used as the absorber 3. That is, it can be seen that four contact absorbing portions 3 are formed for one absorbing body portion 2.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an absorber according to a first embodiment.

FIG. 2 is a front view showing an absorber according to a second embodiment.

FIG. 3 is a front view showing an absorber according to a third embodiment.

FIG. 4 is a front view showing an absorber of Example 4.

FIG. 5 is a front view showing an absorbent member of a comparative example in Example 4.

FIG. 6 is an explanatory view showing an absorber of Example 5.

FIG. 7 is an explanatory view of a modified example of the absorber of the fifth embodiment.

FIG. 8 is a perspective view of another modification of the absorber of the fifth embodiment.

FIG. 9 is an explanatory view showing a first absorber of Example 6;

FIG. 10 is a front view showing a second absorber of the sixth embodiment.

FIG. 11 is a front view showing a third absorber of the sixth embodiment.

[Explanation of symbols]

 1, 11, 41, 51, 61, 71, 81 Absorber 2 Absorbent body 3 Contact absorbent 7 Holder 3a Tip 40 Super absorbent polymer 43 Nonwoven fabric 54 Waterproof coating

Claims (13)

[Claims] 1. An absorbent main body formed in a plate shape by an uncompressed cellulose sponge, and made of an uncompressed cellulose sponge so as to have a width narrower than that of the absorbent main body and a plate surface from an edge of the absorbent main body. And one or a plurality of contact absorbing portions which are formed so as to project in a direction substantially along with and which absorbs the liquid substance by contacting with the liquid substance at the tip end thereof, and the front absorbing main body portion includes the contact absorbing portion. An absorbent article characterized by absorbing and holding the liquid substance. 2. The cellulose sponge has a density D defined by the following formula in a range of 0.030 to 0.040 and an average diameter of pores in a range of 0.8 to 1.6 mm.
Absorber described: D = W / V (unit: g / cm ³ ), where W: weight in dry state (unit: g), V: sponge in a state in which 50% of the total amount of absorbable water is absorbed. Volume (unit: cm ³ ). 3. The contact absorbing portion is formed in a shape in which the width is reduced from the base end side toward the tip end side.
Or the absorber according to 2. 4. The absorbing main body portion is provided with a holding holder portion made of a waterproof material for gripping.
The absorber according to any one of 1 to 3. 5. The absorbent article according to claim 1, wherein the absorbent main body is folded back in the middle of its plate surface. 6. The absorbent device according to claim 1, wherein a sheet-shaped or layer-shaped superabsorbent polymer part is arranged on at least one plate surface side of the absorbent main body part. 7. The absorbent article according to claim 6, wherein a sheet-shaped non-woven fabric-like material is arranged between the superabsorbent polymer portion and the absorbent body portion. 8. The absorbent article according to claim 7, wherein the non-woven fabric-like product is composed of regenerated cellulose fibers. 9. The absorbent article according to claim 6, wherein the absorbent main body is folded back in the middle of its plate surface, and the superabsorbent polymer is disposed inside the folded back. 10. The absorbent article according to claim 1, wherein a waterproof coating is provided so as to cover all or part of the surface of the absorbent main body. 11. The absorber according to claim 10, wherein the waterproof coating portion is also formed on a portion of the contact absorbing portion excluding the tip portion. 12. The rod-shaped absorber according to claim 1, wherein at least the surface of the tip portion of the contact absorbing portion is coated with a water-insoluble and hydrophilic polymer. 13. The contact absorbing part is covered with a hydrophilic or hydrophobic fiber-forming material sheet.
2. The rod-shaped absorber according to any one of 2.