KR101843480B1 - A manufacturing method of insert-typed absorber - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an absorbent body capable of absorbing body fluids by being inserted into a body, comprising a liquid-permeable layer and an absorbent layer formed into a single nonwoven fabric, The amount of the raw material can be reduced by reducing the amount of the raw material as compared with the absorber in which the absorbent layer and the absorbent layer are separated, and the weight of the nonwoven fabric can be improved and the convenience of the process can be improved. In addition, the uniformity of the absorber can be improved to increase the absorption amount and intensity with respect to weight, thereby reducing the circumference of the absorber and improving the user's convenience.

Description

[0001] The present invention relates to a manufacturing method of an insert-typed absorber,

The present invention relates to an absorbent body capable of absorbing body fluids by being inserted into a body, comprising a liquid permeable layer and an absorbent layer made of a single nonwoven fabric to improve the uniformity and increase the absorbed amount and strength relative to weight, The present invention relates to an insertion type absorber in which the circumference of an absorber is reduced to improve user's convenience, and a method for manufacturing the same.

There are two types of menstrual tampons commonly used for feminine hygiene. One is a tampon, which is a finger-type tampon, which is an absorbent structure designed to be inserted directly into the body cavity, for example a woman's vagina, and the other is a tampon designed to be inserted with the aid of a separate applicator, In the case of an applicator, a cardboard or a polymer resin may be typically used.

The two types of tampons can be fabricated by folding the strip of loosely bonded absorbers into an elongated shape, often called a 'softwind', which is manufactured by rounding the soft wind radially, 'W', 'V', or cup-shaped or compressed on two axes to produce a pledget.

In addition, in the case of the two types of tampons, by attaching the recovery line before and after the compression, the tampon can be easily removed from the user's body after absorbing the user's body contraction.

Accordingly, in the case of the conventional tampon, the flat absorber is manufactured by rounding, and the string used when the tampon is discharged to the outside of the body is stuck to the center line of the flat absorber so that the user can pull the string by pulling the string The tampon was removed.

However, in this process, the string and the absorber are simply bonded with the strand, so that the string and the absorber are separated during the pulling of the string due to the failure in the stringing process, and the absorber may remain in the vagina. In addition, when the tampon is used, there is a problem in that the absorbent body is flattened and the fibers forming the absorbent layer inside the flat absorber are separated from the cut surface, that is, the side surface of the absorbent body, Therefore, the user can feel the inconvenience of use, and the tampon is not tightly adhered to the body by being expanded in the body in order to absorb the body fluid by being manufactured in the longitudinal direction.

In order to solve this problem, the applicant of the present invention has found that in the registered registered patent No. 0940223 (Registered on Feb. 04, 2010), the planar absorber is provided with a removing means in a width direction so that the flat absorber is wound, The absorber is fixed by the winding of the flat absorber instead of being stuck, so that the absorber for medical use and physiology is prevented from being removed from the flat absorber during use.

However, in the case of the flat absorber used in the conventional technique, since the liquid permeable layer and the absorbent layer are separated from each other to form the absorbent layer inside the liquid permeable layer and then the absorbent layer is wrapped around the absorbent layer, And there is a problem that the absorbent layer is separated from the liquid permeable layer when the tampon is in use or is discharged to the outside of the body.

No. 0940223 (Registered on February 4, 2010)

Disclosure of the Invention The present invention has been made in order to solve the technical problem in which the conventional insertion type sanitary napkin absorber is difficult to produce an absorbent body in which the liquid permeable layer and the absorbent layer are separated from each other to have a uniform quality absorption amount and weight, The present invention provides an insertion-type absorber having improved absorbency and strength in terms of weight by improving the uniformity of the absorber by applying it to an absorber which is inserted into the body and absorbs body fluids, and a method of manufacturing the same.

In order to achieve the above-mentioned object, an embodiment of the present invention is characterized in that a removing means (20) is provided in a nonwoven fabric (100) formed to be longer in the longitudinal direction than in a width direction, and the nonwoven fabric (100) The nonwoven fabric 100 is an insertion type absorbent body in which a liquid permeable layer 113 containing hydrophobic fibers and an absorbent layer 111 containing absorbent fibers are integrated.

Preferably, the removing means 20 is formed to surround the nonwoven fabric 100 in the width direction, and a part of the removing means 20 is exposed to one side in the width direction of the nonwoven fabric which is turned in the columnar shape in the longitudinal direction.

The liquid-permeable layer 113 may be formed of a fiber in which one or more fibers selected from the group consisting of natural fibers, regenerated fibers and synthetic fibers are hydrophobically treated; Or at least one fiber selected from the group consisting of polyester, polypropylene, and polyethylene terephthalate.

The absorbent layer 111 preferably includes at least one fiber selected from the group consisting of a cotton fiber, a rayon fiber, a Tencel fiber, an acrylic fiber, and a polyester fiber.

Another embodiment of the present invention includes a binding step of integrating an absorbent layer 111 including a liquid-permeable layer 113 including hydrophobic fibers and an absorbent layer 111 into a single nonwoven fabric 100 through water punching; A drying step of dewatering or drying the nonwoven fabric 100; A cutting step of cutting the dehydrated or dried nonwoven fabric into a shape having a longer length in the widthwise direction; And a shaping step of shaping the formed nonwoven fabric by winding it in a circumferential direction in the longitudinal direction so that one side of the nonwoven fabric is covered with the removing means in the form of wrapping the nonwoven fabric in the width direction, To a method of manufacturing an insertion type absorber.

And a compressing step of compressing the formed nonwoven fabric in a radial direction after the forming step, wherein the compressing step is performed by compressing the circumference of the compressed nonwoven fabric by 10 to 12 mm. < / RTI >

The bonding step may include a step of laminating the liquid-permeable layer 113 and the absorbent layer 111, and then jetting a jet stream containing a natural adhesive to the overlapped liquid-permeable layer and the absorbent layer at a pressure of 10 to 150 bar Injection stage; And a second jetting step of jetting jet streams of 10 to 100 bar pressure through the overlapped liquid permeable layer and the absorbent layer which have passed through the first jetting step.

On the other hand, another embodiment of the present invention is a sanitary tampon including the above-mentioned insertion type absorber or an insertion type absorber produced by the above-mentioned manufacturing method.

INDUSTRIAL APPLICABILITY By applying the liquid permeable layer and the absorbent layer as a single nonwoven fabric and inserting the same into the body to absorb the body fluid, the amount of the raw material can be reduced compared to the conventional absorber in which the liquid permeable layer and the absorbent layer are separated Not only can the manufacturing cost be reduced, but also the weight management and the convenience of the process can be improved by producing one nonwoven fabric.

In addition, the uniformity of the absorber can be improved to increase the absorbency and strength of the absorber to reduce the circumference of the absorber, thereby improving the user's convenience. Further, the outer layer for wrapping or protecting the absorber is not required, It is possible not only to reduce the defective rate during the process but also to reduce the foreign object or discomfort due to separation or peeling of the outer layer during the use process of the user.

1 is a schematic view schematically showing a manufacturing process of an absorber in which a conventional liquid-permeable layer and an absorbent layer are separated.
2 is a schematic view schematically showing a molding process of the insertion type absorber of the present invention.
3 and 4 are schematic views showing a molding process according to various embodiments of the nonwoven fabric of the insertion type absorber of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. As well as the fact that

Throughout this specification, when a member is located "above " another member, this includes not only when a member is in contact with another member, but also when another member is present between the two members.

Throughout this specification, when an element is referred to as "including" an element, it is understood that it may include other elements as well, without departing from the other elements unless specifically stated otherwise.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Hereinafter, the insertion type absorber of the present invention and the manufacturing method thereof will be described in detail.

First, the insertion type absorber according to the present invention is provided with a removing means on a nonwoven fabric elongated in the longitudinal direction as compared with the width direction, and the nonwoven fabric 100 is formed by being rolled in a columnar shape in the longitudinal direction, 100 may be formed by integrating the liquid-permeable layer 113 and the absorbing layer 111.

1, the flat absorber 10, which is inserted into a conventional body and is capable of absorbing bodily fluids, has a flat liquid-permeable layer 13 and a flat absorber layer 11 separated from each other, The absorbent article according to any one of claims 1 to 3, wherein the layer (13) is formed by being wrapped around the flat absorbent layer (11) and is provided with a removing means (20) at one side of the flat absorber The flat absorber 10 can be manufactured by turning it.

However, in the case of the insertion type absorber of the present invention, the liquid-permeable layer 113 is formed in place of the conventional flat absorber 10 in which the flat liquid absorbent layer 13 and the flat absorbent layer 11 are separately manufactured, The absorbent layer 100 and the absorbent layer 111 are used to manufacture an insertion type absorbent body. In addition to this, the tensile strength can be increased by weight. In addition, the liquid permeable layer and the absorbent layer The separation phenomenon can be prevented.

In addition, the insertion type absorber of the present invention is composed of the integrated liquid-permeable layer 113 and the absorbent layer 111, so that there is no layer that surrounds or protects the outside of the absorber.

Specifically, the nonwoven fabric 100 included in the insertion type absorbent body of the present invention may be a nonwoven fabric 100 in which a liquid permeable layer 113 having hydrophobic properties and an absorbent layer 111 having hydrophilic properties are integrally formed.

The liquid-permeable layer 113 may be formed of a fiber in which one or more fibers selected from the group consisting of natural fibers, regenerated fibers and synthetic fibers are hydrophobically treated; Or hydrophobic fibers selected from at least one of the group consisting of polyester, polypropylene and polyethylene terephthalate.

The hydrophobically-treated fiber may be one in which one or more fibers selected from the group consisting of natural fibers, regenerated fibers and synthetic fibers have been subjected to hydrophobic treatment by various methods. However, in one embodiment, a dispersion containing a hydrophobic lubricant is added to the fiber surface Drying the heated fiber, and drying the heated fiber.

At this time, the dispersion may contain 30 to 70 wt% of a hydrophobic lubricant containing a fatty acid amide condensation product based on 100 wt% of the dispersion. The fatty acid amide condensate may serve to impart friction and hydrophobicity to the fibers, and fatty acid amide condensation products based on carbon atoms of mono or diamine and terrestrial acid chains (C10 to C25) may be used. Further, for uniform hydrophobic treatment, the hydrophobic lubricant in the dispersion may have an average particle size of 0.1 to 3 탆.

In addition, the dispersion may contain 10 to 50 wt% of a cationic antistatic agent of quaternary ammonium salt based on 100 wt% of the dispersion so as to minimize the generation of static electricity during carding, and the cationic antistatic agent may be a partial It is possible to minimize the repulsion of the hydroxy or carboxy group and the antistatic agent present according to the oxidation.

If the amount of the cationic antistatic agent is too small, it is difficult to smoothly form the web due to severe static electricity during the carding operation. If the content of the antistatic agent is too high, the adhesiveness of the fibers is high and slippage may occur during carding. In addition, the cationic antistatic agent preferably has a relatively high pH to minimize acid-induced skin inflammation, and more preferably, an antistatic agent having a pH of 5 to 6 can be used.

In addition, the dispersion may further comprise 0.1 to 3 wt% of polydimethylsiloxane based on 100 wt% of the dispersion to minimize bubble formation.

In addition, the dispersion may further comprise 1 to 5 wt% of barium titanate based on 100 wt% of the dispersion to further enhance workability. In general, hydrophobic fibers can cause process troubles such as curling and poor uniformity due to strong friction in the kidding process. In particular, recent rapid development of the nonwoven fabric manufacturing process can cause such process troubles.

In order to solve this problem, when the content of the antistatic agent is increased, the process trouble may be alleviated but the hydrophobicity may be deteriorated. Therefore, in order to improve the processability while maintaining the hydrophobicity, barium titanate have. In addition, the dispersion may further contain an active ingredient such as an emulsifier and a coagulating agent which can be used commercially if necessary.

The liquid-permeable layer 113 may include hydrophobic fibers selected from the group consisting of polyester, polypropylene, and polyethylene terephthalate. For example, the liquid-permeable layer 113 may include hydrophilic fibers formed of the hydrophobic fibers, air through, point bond, A spun bond, a thermal bond nonwoven fabric, a porous plastic sheet, or the like can be used as the liquid permeable layer.

The absorbent layer 111 serves to absorb moisture. The absorbent layer 111 is not particularly limited and can be used as an absorbent layer. Preferably, the absorbent layer 111 is made of cotton fiber, rayon fiber, tencel fiber, acrylic fiber, Polyester fibers, and polyester fibers.

The nonwoven fabric 100 is formed by integrating the liquid-permeable layer 113 and the absorbent layer 111. The non-woven fabric 100 may have a shape in which the first liquid-permeable layer 113a and the absorbent layer 111 are laminated on one surface of the liquid- And the liquid-permeable layer 113b.

When the nonwoven fabric 100 having the liquid-permeable layer 113 and one side of the absorbent layer 111 interwoven with each other is made into an absorbent body, when the nonwoven fabric 100 is formed by being rolled into a columnar shape in the longitudinal direction, It is preferable that the absorbent layer 111 is curled inward and the liquid permeable layer 113 is formed so as to form the outer side.

The removal means 20 is used when the insertion type absorbent body of the present invention is inserted into the body and then absorbs body fluids and removes the body fluids from the body. The removal means 20 is formed to wrap the nonwoven fabric 100 in the width direction, A portion of the nonwoven fabric may be exposed to one side in the width direction of the nonwoven fabric which is turned by a columnar shape in the longitudinal direction.

As the removing means 20, a string can be generally used, and both ends of the string are exposed to one side of the nonwoven fabric 100, that is, a side of a molded form in which the string is turned around in a columnar form, Is easily removed.

In addition, both ends of the strap may be bundled so that the exposed strap is bundled so that the nonwoven fabric is inserted into the strap in the longitudinal direction, and a part of the strap in the bundled form is exposed to one side in the width direction of the nonwoven fabric .

It is preferable that the removing means 20 is disposed at one side of the nonwoven fabric 100 in the lengthwise direction and is disposed in the center of one side of the absorbent body formed by being rolled up into a columnar shape.

In the drawings of the present invention, the above-described removing means 20 has been described in detail with a string as an example. However, the removing means 20 may have a sheet shape or other means. In addition, the removing means 20 is not limited to the material, but a non-absorbent material may be used for convenience of use or a water-repellent surface may be used in the case of an absorbent material.

In addition, it is preferable that the surface of the nonwoven fabric 100 is formed of a concavo-convex structure. This is because when the surface area of the nonwoven fabric is increased due to the concavo-convex structure, Can be absorbed quickly and easily.

Another embodiment of the present invention relates to a method of manufacturing an insertion type absorbent body, wherein a liquid-permeable layer 113 including hydrophobic fibers and an absorbent layer 111 including the water-absorbent fibers are poured into a single nonwoven fabric 100 ); A drying step of dehydrating or drying the nonwoven fabric; A cutting step of cutting the dehydrated or dried nonwoven fabric into a shape having a longer length in the widthwise direction; And a removing means (20) in the form of wrapping the nonwoven fabric in a width direction on one side of the cut nonwoven fabric. The forming means is formed by rolling in a circumferential direction in the longitudinal direction so that one side formed with the removing means (20) And an embedding step of forming an embedding absorber of the present invention.

The binding step is for integrating the liquid-permeable layer 113 including the hydrophobic fibers and the absorbent layer 111 including the water-absorbent fibers into one nonwoven fabric 100, (FIG. 4) in which the absorbent layer 111 is laminated on one side of the first liquid-permeable layer 113 and the form in which the absorbent layer 111 is formed between the first liquid-permeable layer 113a and the second liquid- 3).

The liquid-permeable layer 113 and the absorbent layer 111 are not described here because they have been described above.

In order to integrate the liquid-permeable layer 113 and the absorbent layer 111 as described above, a water punching method is preferably used instead of a synthetic resin adhesive.

The water punching method is a method in which high-pressure water is continuously passed through the fiber to increase the density of the fiber and the bonding force between the fibers, and the number and strength of the water punching are adjusted so as to match the stiffness required for the laminate. Can be adjusted appropriately.

Preferably, the binding step is performed such that the liquid-permeable layer 113 and the absorbent layer 111 are superimposed on each other in order to stably bond the liquid-permeable layer 113 and the absorbent layer 111, A first jetting step of jetting a jet stream containing a natural adhesive to the absorbent layer (111) at a pressure of 10 to 150 bar; And a second jetting step of jetting jet streams of 10 to 100 bar pressure through the liquid-permeable layer and the absorbent layer which have passed through the first jetting step.

Specifically, in the first injection step, a jet stream containing 0.05 to 5 wt% of a natural adhesive may be injected at a pressure of 10 to 150 bar to bond the liquid-permeable layer 113 and the absorbent layer 111, have.

At this time, the binding between the liquid-permeable layer 113 and the absorbent layer 111 can be made smooth and strong through the jet stream including the natural adhesive. The natural adhesive generally has adhesiveness that can be obtained from natural products But not limited to, at least one selected from the group consisting of dough grass root solution, starch paste boiled in starch powder, corn starch, potato starch, sweet potato starch or tapioca starch Can be used as a natural adhesive.

Further, in order to improve the functionality of the nonwoven fabric 100 formed by combining the liquid-permeable layer 113 and the absorbent layer 111, it is possible to further include superabsorbent resin particles in the jet stream in the first injection step.

Preferably, the size of the superabsorbent resin particle is smaller than the pore size of the liquid permeable layer 113 and larger than the pore size of the absorbent layer 111, and the water-soluble ethylenic unsaturation containing an acidic group and at least partially neutralized A hydrogel polymer is prepared by polymerization of a monomer to obtain a base resin particle by drying, crushing and classification, and then a cross-linked polymer prepared by surface cross-linking the base resin particle with a diol or a glycol compound having 2 to 8 carbon atoms Pulverized to prepare the superabsorbent resin particles.

The liquid-permeable layer 113 and the absorbent layer 111 are injected through the second injection step of injecting the jet stream of 10 to 100 bar pressure through the liquid-permeable layer 113 and the absorbent layer 111, Can be integrated into one nonwoven fabric (100).

The natural adhesive remaining in the liquid-permeable layer 113 and the absorbent layer 111 is removed through the second injection step, and the superabsorbent resin particles remain in the absorbent layer 111 and can exert their inherent functionality.

The nonwoven fabric 100 integrated with the liquid permeable layer 113 and the absorbent layer 111 having different physical properties through water punching can be manufactured through the binding step to simplify the manufacturing process and reduce the manufacturing cost. In addition, since the liquid-permeable layer and the absorbent layer are combined with each other only by water punching without using a separate strong synthetic adhesive, troubles in insertion into the body can be prevented and the tensile strength can be increased.

The nonwoven fabric 100 manufactured through the binding step may be cut so that the nonwoven fabric 100 is dewatered or dried through a drying step, cut into a predetermined shape, and formed to have a longer length in a widthwise direction.

2, the cut nonwoven fabric 100 has a removing means in the form of wrapping the nonwoven fabric in the width direction on one side, and is formed by rolling in a columnar shape in the longitudinal direction so that one side where the removing means is formed is formed inside The insertable absorber of the present invention can be manufactured through the molding step, and the nonwoven fabric molded through the molding step can further include a compressing step of compressing and compressing in the radial direction.

This can increase the absorption rate of the body fluid per unit volume by compressing the formed nonwoven fabric.

In addition, compressing the formed nonwoven fabric in the radial direction compresses in the longitudinal direction to increase the length of absorbing body fluids, which not only inconveniences the user but also causes a part of the body fluids to flow out of the body Or an inserted absorber may fall out of the body.

In addition, in the compression step, when the molded nonwoven fabric is pressed, moisture can be applied to compress the molded nonwoven fabric. This induces hydrogen bonding between the fibers in the nonwoven fabric, thereby preventing returning to the original volume after compression, When the insertion type absorbent article of the present invention is inserted into the body, absorbing body fluids can prevent hydrogen bonds between the fibers from weakening, and the compressed nonwoven fabric is expanded in its original form, thereby preventing the inserted absorbent article from falling out of the body.

In the case of the insertion type absorber of the present invention, by using the integrated nonwoven fabric 100 as compared with the flat absorber 10 in which the conventional flat liquid-permeable layer 13 and the flat absorber layer 11 are separated from each other, It is possible to obtain an excellent absorbing power equal to or higher than that of the flat absorber 10 in which the flat liquid absorbent layer 11 and the flat liquid absorbent layer 11 are separated from each other.

In addition, it is possible to reduce the manufacturing cost due to the reduced weight and to reduce the circumference of the formed nonwoven fabric by turning it into a cylindrical shape, thereby improving the usability of the user through slimming

Therefore, in the case of the flat absorber 10 in which the flat liquid absorbent layer 11 and the flat liquid absorbent layer 11 are separated from each other, it is about 13 to 14 mm, but the circumference of the non- ) Is 10 to 12 mm.

Hereinafter, an embodiment of the present invention will be described. However, the scope of the present invention is not limited to the following preferred embodiments, and a person skilled in the art can carry out various modifications of the contents described in the present invention within the scope of the present invention.

[Manufacturing Example]

Manufacture of insertion type absorber

The laminate was laminated so that an absorbent layer made of absorbent fibers including cotton fibers was formed between the liquid permeable layers made of hydrophobic fibers including polyethylene terephthalate. Then, a jet stream containing 1 wt% of starch paste was sprayed at a pressure of 110 bar , And pressed using a squeegee roller. The laminate was jetted at a pressure of 80 bar with a pressurized liquid-permeable layer-absorbent-liquid-permeable layer to produce a nonwoven fabric.

After the fabricated nonwoven fabric is dehydrated, it is cut in a predetermined shape so as to have a longer length direction than the width direction, and then a yarn is provided on one side in a form of wrapping the nonwoven fabric in the width direction, Shaped in the longitudinal direction to form a cylindrical shape, and then pressure was applied in the radial direction to prepare an insertion type absorber.

[Experimental Example]

Measurement of tensile strength by weight

Example 1, which is manufactured by the manufacturing method of the above-described production example, and Example 2 which is manufactured by the same manufacturing method as that of the above-mentioned Example 1, and which has a supersize, a commercially available liquid permeable layer and an absorber Comparative Example 1, which is a regular size, and Comparative Example 2, which is a supersize having an absorber in which a liquid-permeable layer and an absorbent layer are separated from each other in the market, were each weighed and tensile strength was measured.

Tensile strength was measured at one third point from the tip of the absorber of the tampon and 15 mm from the end of the cord of the removal handle (removal means) and pulled in the direction of gravity below to break the tensile strength.

regular Super Example 1 Comparative Example 1 Example 2 Comparative Example 2 Weight (g) Tensile strength (Kgf) Weight (g) Tensile strength (Kgf) Weight (g) Tensile strength (Kgf) Weight (g) Tensile strength (Kgf) One 2.14 6.89 2.56 6.26 2.11 6.90 3.01 6.23 2 1.99 6.71 2.54 6.14 2.27 6.86 3.08 6.18 3 2.05 7.00 2.51 6.18 2.01 6.91 3.06 6.28 4 2.03 6.89 2.56 6.11 2.04 6.85 3.04 6.30 5 2.10 6.90 2.53 6.08 2.00 6.82 3.00 6.27 6 2.12 6.94 2.59 6.13 2.25 6.80 3.12 6.19 7 2.13 6.87 2.56 6.19 2.17 6.91 3.14 6.22 8 2.06 6.78 2.51 6.21 2.34 6.90 3.18 6.23 9 2.05 6.69 2.53 6.25 2.01 6.82 3.10 6.15 10 1.98 6.70 2.59 6.09 1.97 6.84 3.13 6.24 11 1.89 6.92 2.58 6.18 2.20 6.76 3.10 6.29 12 2.03 6.73 2.42 6.20 2.20 6.79 3.06 6.08 13 2.05 6.85 2.43 6.19 2.39 6.72 3.04 6.09 14 2.15 6.92 2.48 6.23 2.44 6.79 3.09 6.13 15 2.09 6.94 2.53 6.09 2.31 6.83 2.94 6.24 16 2.09 6.88 2.51 6.17 2.16 6.84 2.98 6.08 17 2.01 6.93 2.46 6.19 2.08 6.91 3.00 6.19 18 2.06 6.87 2.44 6.20 2.07 6.88 3.09 6.07 19 1.98 6.76 2.46 6.18 2.20 6.80 3.04 6.09 20 2.00 6.72 2.41 6.06 1.92 6.79 3.12 6.13 21 2.03 6.85 2.43 6.23 2.33 6.91 3.13 6.11 22 2.05 6.83 2.49 6.22 2.15 6.84 2.95 6.12 23 2.03 6.67 2.54 6.15 2.33 6.79 3.04 6.19 24 2.08 6.85 2.58 6.18 2.31 6.81 2.98 6.21 25 2.06 6.76 2.51 6.09 2.37 6.83 3.01 6.22 26 2.10 6.81 2.50 6.22 2.49 6.76 3.03 6.09 27 2.16 6.83 2.55 6.18 2.41 6.81 3.06 6.19 28 2.15 6.86 2.57 6.17 1.99 6.83 3.08 6.23 29 2.09 6.85 2.52 6.26 2.22 6.89 3.12 6.27 30 2.05 6.87 2.51 6.29 2.24 6.92 3.10 6.28 Average 2.06 6.83 2.51 6.18 2.20 6.84 3.06 6.19

The results are shown in Table 1. The results are shown in Table 1. In Example 1 and Comparative Example 1, the average weight was reduced by about 18%, but the tensile strength was increased by about 10% , The weight was reduced by about 28%, but the tensile strength was increased by about 10%.

Therefore, by reducing the weight of Examples 1 and 2 as compared with Comparative Example 1 or 2, which is the conventional absorber, it is possible to reduce the amount of raw material input to reduce the cost and increase the friction coefficient, It is expected that the dropout phenomenon can be reduced due to the strengthening of the bond with the yarn.

This is because, in the case of the insertion type absorber of the present invention, the use amount of the raw material is reduced than that of the conventional absorber to reduce the circumference of the absorber, which is lighter in weight, thereby improving the usability of the user and increasing the tensile strength, It is possible to simplify the process by manufacturing the absorber with a single nonwoven fabric and to reduce the manufacturing cost.

10: flat absorber 11: flat absorber
13: Flat liquid-permeable layer
20: removing means 100: nonwoven fabric
111: absorbing layer 113: liquid-permeable layer

Claims (9)

delete delete delete delete A binding step of integrating the liquid-permeable layer 113 including the hydrophobic fibers and the absorbent layer 111 including the water-absorbent fibers into one nonwoven fabric 100 through water punching;
A drying step of dehydrating or drying the nonwoven fabric;
A cutting step of cutting the dehydrated or dried nonwoven fabric into a shape having a longer length in the widthwise direction; And
And a shaping step of shaping the cut nonwoven fabric in a circumferential direction in the longitudinal direction so as to form one side of the nonwoven fabric in the form of wrapping the nonwoven fabric in the width direction,
The binding step may include a first injection step in which the liquid permeable layer and the absorption layer are overlapped and then the jet flow containing the natural adhesive is jetted at a pressure of 10 to 150 bar to the overlapped liquid permeable layer and the absorption layer, And a second jetting step of jetting a jet stream of 10 to 100 bar pressure through the overlapped liquid-permeable layer and the absorbent layer,
At least one or more natural adhesives selected from the group consisting of starch paste, corn starch, potato starch, sweet potato starch, or tapioca starch and water-soluble ethylene Wherein the resin particle further comprises resin particles obtained by pulverizing a cross-linked polymer prepared by surface-crosslinking resin particles obtained by polymerization of an unsaturated monomer with a diol or glycol having 2 to 8 carbon atoms. 6. The method of claim 5,
After the molding step,
And a compressing step of compressing the formed nonwoven fabric in the radial direction by rotating it in the circumferential direction in the longitudinal direction. The method according to claim 6,
Wherein the compressing step comprises:
Characterized in that the circumference of the compressed nonwoven fabric is compressed in the range of 10 to 12 mm. 6. The method of claim 5,
Wherein the size of the resin particle is smaller than the pore size of the liquid permeable layer (113) and larger than the pore size of the absorbent layer (111). 9. A sanitary tampon comprising an insertion-type absorber produced by the manufacturing method according to any one of claims 5-8.

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