TWI698229B - Absorber manufacturing method and absorber manufacturing apparatus - Google Patents

Abstract

The manufacturing method of the absorbent body of the present invention includes the step of forming a cut portion in which a plurality of cut portions extending in the conveying direction and spaced apart in the width direction are intermittently formed on a belt-shaped substrate sheet, and the cut portions are formed by being arranged in the The non-cutting part between adjacent cuts in the conveying direction connects a plurality of elongated substrates in the width direction; the coating step is a step for the long substrate connecting body One side is coated with an adhesive; the polymer spreading step is to spread the particles of the water-absorbing polymer on the surface coated with the adhesive, and fix the particles of the water-absorbing polymer to the elongated base through the adhesive. Body; and the cutting step, which is by cutting the non-cutting part by connecting the cut parts adjacent to each other along the conveying direction, and cutting the long-shaped base body connected body into a plurality of long strips The base part forms an absorbent unit.

Description

Absorber manufacturing method and absorber manufacturing device

The present invention relates to a manufacturing method of an absorbent body.

Generally speaking, the absorbent system used for disposable diapers, menstrual sanitary napkins, incontinence pads and other absorbent articles draws the raw materials of the absorbent body containing pulp fibers and water-absorbent polymers to the outer circumference of the drum by means of air flow. The recessed portion of the surface is stacked, and then the fiber stack deposited in the recessed portion is coated with a water-permeable sheet. However, the weight of the water-absorbent polymer is very heavy compared with the weight of the pulp fiber, and the dispersion of the water-absorbent polymer tends to become uneven. In such a non-uniform absorbent body, it is easy to cause colloidal agglomeration and other obstacles to swelling, and it is impossible to maximize the absorption performance of the water-absorbing polymer.

In order to improve the uneven dispersion of the absorbent polymer during the manufacture of the absorbent body and maximize the absorption performance of the absorbent polymer, Patent Documents 1 to 3 describe the following sheets for absorbent articles The manufacturing method includes: the sheet-like article for absorbent articles is provided with a plurality of absorbent units, and the absorbent unit is formed by dispersing particles of a water-absorbent polymer on the surface of one surface of a long-shaped base formed by cutting a base sheet, and The water-absorbing polymer is fixed to the surface.

Prior art literature Patent literature

Patent Document 1: Japanese Patent Laid-Open No. 2017-070498

Patent Document 2: Japanese Patent Laid-Open No. 2017-070500

Patent Document 3: Japanese Patent Laid-Open No. 2017-070501

The present invention provides a method of manufacturing an absorbent body, the absorbent body is provided with a plurality of absorbent units, the absorbent unit is provided with: a long-shaped base portion having a transverse direction, a longitudinal direction with a length longer than the transverse direction, and a thickness direction; and a water-absorbing polymer The particles of the object are fixed on at least one surface of the elongated base portion via an adhesive; the manufacturing method of the absorbent body includes the step of forming a cut portion, which is attached to the conveyed belt-shaped base sheet along the conveying direction A plurality of notches extending in the conveying direction and spaced apart in the width direction that is orthogonal to the conveying direction are formed intermittently, thereby forming non-intermittent gaps between the notches arranged adjacent in the conveying direction. The cutting part connects a plurality of strips of the strips of the strips of the strips of the strips of the substrate in the width direction; the coating step, which is to apply an adhesive to one surface of the strips of the strips of the strip of substrates; polymerization; The step of dispersing the substance is to spread particles of the water-absorbing polymer on the surface coated with the above-mentioned adhesive, and fix the particles of the water-absorbing polymer to the above-mentioned elongated base body connecting body through the adhesive; and The separating step comprises cutting the non-cutting portion so that the cut portions adjacent to each other along the conveying direction are connected to each other, and the strip-shaped base portion connecting body is cut into a plurality of strips. And forming a plurality of the above-mentioned absorptive units.

In addition, the present invention provides a manufacturing device for an absorbent body, the absorbent body is provided with a plurality of absorbent units, the absorbent unit is provided with: a long-shaped base portion having a transverse direction, a longitudinal direction with a length longer than the transverse direction, and a thickness direction; and water absorption The particles of the sexual polymer are fixed to at least one surface of the elongated base portion via an adhesive; the manufacturing device of the absorbent body includes: a substrate sheet cutting portion, which is attached to the conveyed belt-shaped substrate sheet, It is formed intermittently along the conveying direction, extending along the conveying direction and being aligned with the conveying direction. A plurality of notches spaced apart in the cross direction, that is, in the width direction, forms a plurality of the elongated base portions in the width through the non-cut portions arranged between the notches adjacent in the conveying direction. Directionally connected elongated base body connecting body; adhesive coating part, which coats the adhesive on one side of the above-mentioned elongated base body connecting body; water-absorbing polymer dispersion part, which is coated with the above adhesive Spread the water-absorbent polymer particles on the surface of the adhesive, and fix the water-absorbent polymer particles to the elongated base portion connecting body via the adhesive; and the cut-off portion, which is moved along the conveying direction The non-cutting portion is cut so that the adjacent cut portions are connected to each other, and the elongated base portion connecting body is cut into a plurality of elongated base portions to form a plurality of the absorbent units.

1: Absorber

1A: Absorbent unit

1a: Long strip base

2: Notch

3: Non-cutting part

10: Absorber manufacturing device

20: Substrate sheet cutting part

21: Original film roll

22: Substrate sheet

22A: Long strip base body connecting body

23: Guide roller

24: cutting device

24A: Rotary punch

24a: cutting knife

24B: Take-up roller

24b: flat part

30: Adhesive coating department

31: Adhesive

32: Coating head

40: Water-absorbing polymer dispersion part

41: Water-absorbing polymer

42: Polymer introduction department

50: Integrated device

60: Vacuum conveyor

61: drive roller

62: driven roller

63: Breathable belt

64: Suction box

70: cut away

L2: length

L3: length

NT: Non-cutting area

W2: width

X: conveying direction

Y: width direction

Z: thickness direction

Fig. 1 is a schematic diagram showing an embodiment of an absorbent body manufacturing apparatus.

Fig. 2 is a schematic perspective view of the cutting device in the manufacturing device shown in Fig. 1.

3(a) to (d) are schematic diagrams showing the form of the cut portion and the non-cut portion formed in the base sheet.

Fig. 4 is a schematic perspective view of the cutting step of cutting the strip-shaped base body part in the cutting part into a plurality of strip-shaped base body parts.

Figures 5 (a) and (b) are schematic perspective views of an absorbent body manufactured by the manufacturing method of the present invention.

Fig. 6 is a cross-sectional view on the I-I surface of the absorbent body in Fig. 5(a).

The sheet-shaped article of Patent Documents 1 to 3 is supplied to the step of applying an adhesive to the surface of the substrate sheet in order to fix the water-absorbent polymer after cutting the substrate sheet to form a long base portion, In the case of the step of dispersing water-absorbent polymer particles, shaking of the substrate sheet during transportation or loosening of the elongated substrates due to shaking may occur, and it may not be possible to coat the elongated substrates. Distribute uniform and stable adhesives and disperse polymers.

Therefore, the present invention relates to a manufacturing method of an absorbent body that can eliminate the above-mentioned disadvantages of the prior art and a manufacturing device preferably used for the same.

Hereinafter, based on the preferred embodiments of the present invention, the present invention will be described with reference to the drawings. Fig. 1 schematically shows an embodiment of the absorbent body manufacturing apparatus 10 of the present invention. Furthermore, in the following description, "longitudinal" or "rotational direction" refers to the same direction (length direction) as the conveying direction X of the substrate sheet 22, and "lateral", "width direction" or "axial direction" refers to It refers to a direction (Y direction) orthogonal to the conveying direction X of the base sheet 22.

The manufacturing apparatus 10 includes a substrate sheet cutting section 20, an adhesive application section 30, a water-absorbent polymer spreading section 40, and a cutting section 70 in this order from the upstream side to the downstream side of the manufacturing step.

The substrate sheet cutting section 20 includes: a guide roller 23 that guides the strip-shaped substrate sheet 22 conveyed from the original sheet roll 21; and a cutting device 24 that cuts the substrate sheet 22 while conveying it to the downstream side. It is broken, and a plurality of notches 2 extending in the conveying direction X of the substrate sheet 22 are intermittently formed in the conveying direction X to form a long base body connecting body 22A. For cutting the substrate sheet 22, known cutting devices such as slitting devices, slitting devices, and laser cutting devices can be used without particular limitations. The notch 2 will be described in detail later.

As shown in FIG. 2, the cutting device 24 of the substrate sheet cutting portion 20 includes: a rotary punch 24A in which a plurality of cutting knives are arranged; and a receiving roller 24B with a flat peripheral surface. The plurality of cutting knives 24a, 24a..., which are arranged on the rotary punch 24A, extend along the rotation direction (longitudinal X) of the rotary punch 24A, and are arranged at intervals in the axial direction (lateral Y) of the rotary punch 24A. Between the rotary punch 24A and the adjacent cutting knives 24a along the direction of rotation, between the rotary punch 24A The peripheral surface is provided with a flat portion 24b where the cutter 24a does not exist. The flat portion 24b extends along the axial direction of the rotary punch 24A. The circumferential length of the flat portion 24b in the rotation direction, that is, the distance between the cutting blades 24a adjacent to each other along the conveying direction X corresponds to the length of the non-cutting portion 3 formed on the substrate sheet 22 and extending along the conveying direction X . The non-cutting part 3 will be described in detail later. In addition, in the rotary punch 24A, the interval between the cutting blades 24a adjacent in the width direction Y corresponds to the interval between the cut portions 2 formed in the base sheet 22 adjacent in the width direction Y.

The adhesive application part 30 located on the downstream side of the cutting part 20 of the substrate sheet is opposed to one surface of the substrate sheet 22 (the elongated base body connecting body 22A) on which the cut part 2 and the non-cutting part 3 are formed. The surface of the upper surface) is coated with adhesive 31. In the manufacturing apparatus 10 shown in FIG. 1, the adhesive application section 30 includes an application head 32 on the upper side facing one surface of the base sheet 22. The coating head 32 is formed to have a length corresponding to the width direction Y of the base sheet 22. The coating head 32 can use various well-known coating apparatuses, such as the method of contacting a base material sheet|seat and performing coating, without particular limitation.

The water-absorbent polymer dispersion part 40 located on the downstream side of the adhesive application part 30 is a part where the particles of the water-absorbent polymer 41 are spread on the surface of the long-shaped base body connecting body 22A coated with the adhesive 31. In the manufacturing apparatus 10 shown in FIG. 1, the water-absorbent polymer dispersion section 40 includes a polymer introduction section 42 above the base sheet 22. The polymer introduction part 42 is formed to have a length corresponding to the width direction Y of the base sheet 22. Various well-known coating devices can be used for the polymer introduction part 42 without particular limitation.

In the manufacturing apparatus 10 shown in FIG. 1, an apparatus formed by integrating the adhesive application part 30 and the water-absorbent polymer dispersion part 40 is used (hereinafter, this apparatus is also referred to as "integrated apparatus 50"), However, the adhesive application part 30 and the water-absorbent polymer dispersion part 40 may be provided separately. In the case of using the integrated device 50, it is sufficient to arrange the adhesive application part 30 on the upstream side of the device and the water-absorbent polymer dispersion part 40 on the downstream side.

As shown in FIG. 1, in the manufacturing apparatus 10, the vacuum conveyor 60 may be arrange|positioned at the position which opposes the integrated apparatus 50, and the lower surface side of the base material sheet 22 being conveyed. The vacuum conveyor 60 is used to suck the substrate sheet 22 formed with the cut portion 2 and the non-cutting portion 3 toward the vacuum conveyor 60, so that the adhesive can be easily applied to one surface of the substrate sheet 22 And the dispersion of water-absorbing polymers. On the vacuum conveyor 60, the base material sheet 22 (the elongated base body part coupling body 22A) in which the notch part 2 and the non-cut part 3 were formed is arrange|positioned. The vacuum conveyor 60 is provided with: an endless air-permeable belt 63, which is installed on the driving roller 61 and a plurality of driven rollers 62; and a suction box 64, which is arranged facing the integrated device 50 via the air-permeable belt 63 The location.

In the manufacturing apparatus 10 shown in FIG. 1, a cutting part 70 is provided on the most downstream side in the conveying direction X of the substrate sheet 22. The cutting part 70 cuts the non-cutting part 3 in such a way that the adjacent cut parts 2 in the conveying direction X in the elongated base body connecting body 22A to which the particles of the water-absorbing polymer 41 are fixed are connected to each other By. In the present embodiment, the cut-off portion 70 is configured to be able to apply an outward force to the elongated matrix connecting body 22A to which the particles of the water-absorbent polymer 41 are fixed along the surface direction in two directions opposite to each other. , The non-cutting part 3 is cut by the outward force. The cutting part 70 can use a well-known roller, a device, etc., without a particular limitation. As the structure of the cut-off portion 70 capable of applying an outward force in the width direction Y of the base material sheet 22, for example, a peripheral surface such as a middle-high roller and a widening roller or a central area in the axial direction (transverse direction Y) of the rotating shaft can be cited. The lateral area located on the side of the central area protrudes into an outward convex shape arcuate bending roller or the like. As a configuration of the cut-off portion 70 capable of applying an outward force along the conveying direction X of the base sheet 22, for example, tension rollers are used to generate tension on the base sheet 22 in the conveying direction X (longitudinal direction) of the base sheet 22. X) The formation of external forces, etc. As another configuration of the cut-off portion 70, for example, the non-cut portion 3 may be cut by applying external force such as contact resistance by the coating head or vibration by ultrasonic waves to the elongated base-part coupling body 22A.

The above description is about the manufacturing device 10 preferably used for manufacturing the absorbent body of the present invention, and the manufacturing method of the absorbent body using the manufacturing device 10 will be described below. This manufacturing method is roughly divided into 4 steps of forming a cut portion, coating step, polymer spreading step, and cutting off step. Hereinafter, each step will be described.

<Steps for forming cutouts>

The formation of the cut portion is performed using the base sheet cutting portion 20. First, the strip-shaped substrate sheet 22 wound from the original sheet roll 21 is guided by the guide roller 23, and the substrate sheet 22 is supplied between the rotary punch 24A and the receiving roll 24B in the cutting device 24. Thereby, in the belt-shaped base material sheet 22, a plurality of notches 2 extending in the conveying direction X of the base material sheet 22 and spaced in the width direction Y are intermittently formed along the conveying direction X, thereby forming a via arrangement The non-cut portion 3 between the cut portions 2 adjacent in the conveying direction connects a plurality of elongated base portions 1a in the above-mentioned width direction, and 22A of elongated base portion coupling bodies. The elongated base portion connecting body 22A is one in which the cut portion 2 and the non-cutting portion 3 are formed in the base sheet 22, so the elongated base portion connecting body 22A and the base sheet 22 are substantially the same.

In the rotary punch 24A, a plurality of cutting knives 24a arranged in the rotation direction thereof are arranged in a direction Y orthogonal to the conveying direction X of the belt-shaped base sheet 22, and are arranged at intervals. For the belt-shaped substrate sheet 22 supplied between the rotary punch 24A and the take-up roller 24B, one side is conveyed in the conveying direction X (longitudinal X), and the substrate sheet 22 is conveyed along the conveying direction X and in the orthogonal direction. (Width direction Y) A plurality of parts are cut at intervals to form a cut portion 2 penetrating one surface and the other surface of the base sheet 22. As shown in FIG. 2 and FIG. 3(a), the notch portion 2 corresponds to a plurality of cutting blades 24a, and extends in the longitudinal direction X and is formed at intervals in the width direction Y.

In addition, since the rotary punch 24A has the flat portion 24b, the cut portion 2 is formed by separating the length of the base sheet 22 corresponding to the length of the peripheral surface of the flat portion 24b in the conveying direction X. In addition, a non-cutting portion 3 is formed between the cut portions 2 adjacent to each other in the conveying direction X. The non-cutting portion 3 is a portion of the base sheet 22 that is not cut by the cutting blade 24a. As shown in FIG. 2 and FIG. 3(a), the non-cutting portion 3 in this embodiment is formed intermittently between the cut portions 2 adjacent to each other along the conveying direction X, and is continuously formed over the entire width direction Y. When a plurality of notches 2 are formed along the conveying direction X and spaced apart in the width direction of the substrate sheet 22 to form a plurality of the following elongated base portions 1a, in this embodiment, non-cutting is provided The notch portion 2 is formed in the manner of the portion 3, so that a plurality of elongated base body portions 1a are connected in the width direction Y in the non-cutting portion 3, and thus a plurality of elongated base body portion coupling bodies 22A are formed.

In this way, since the non-cutting part 3 is interposed between the cut parts 2 adjacent to each other in the conveying direction X, the movement of the substrate sheet 22 formed with the cut part 2 is restricted by the non-cutting part 3, and it is difficult to occur Adjacent base sheets 22 (long-strip base portion 1a) are offset or overlapped with each other, flexed, etc. As a result, compared to the case of conveying the base sheet 22 having the cut portion 2 without the non-cutting portion 3, the sheet shape of the base sheet 22 with the cut portion 2 formed can be maintained, and the structure is not easy to loosen, and It is possible to reduce the looseness or shaking during the conveyance of the substrate sheet 22, thereby stably performing the following coating step and polymer spreading step.

The shape of the cut portion 2 and the non-cut portion 3 interposed therebetween is not particularly limited as long as it can exhibit the effects of the present invention. For example, it is also possible to form the non-cutting part 3 in the width direction Y of the base material sheet 22 so that the non-cut part 3 may be formed in a zigzag lattice shape as shown in FIG. By forming the non-cutting part 3 to be discontinuous in the width direction Y, the non-cutting part 3 can be effectively cut in the following cutting and separating step. Moreover, the notch part 2 is not limited to the one which is linear in the conveyance direction X, For example, as shown in FIGS. 3(c) and (d), the notch part 2 may be formed in a wave shape. By forming these shapes, not only can the looseness or shaking of the base sheet 22 with the cut portion 2 be reduced during transportation, but also the absorbent body 1 for absorbent articles corresponding to the purpose of the manufactured absorbent article can be manufactured. In order to form the shape of the cut portion 2 and the non-cut portion 3 as shown in Figure 3 (b) to (d), the rotary punch 24A The shape of the cutting blade 24a and the arrangement shape of the flat portion 24b are appropriately changed to the desired shape, and the cut portion 2 and the non-cut portion 3 corresponding to the shape of the base sheet 22 can be formed.

<Coating Step>

Then, the vacuum conveyor 60 is operated, and the inside of the suction box 64 becomes negative pressure. In this state, while conveying the elongated base portion connecting body 22A in the X direction, the adhesive 31 is applied to one surface (upper surface) of the elongated base portion connecting body 22A through the adhesive application portion 30 . In the embodiment shown in FIG. 1, after the elongated base body connecting body 22A is formed in the notch forming step, the vacuum conveyor 60 is used to transport the elongated base body connecting body 22A, and the elongated base body connecting body 22A The base body connecting body 22A is located on the suction box 64. During this period, the entire surface (upper surface) of the elongated base body connecting body 22A is coated by the coating head 32 in the adhesive coating part 30 Cloth adhesive 31.

<Polymer dispersion step>

Then, the particles of the water-absorbent polymer 41 are spread on the surface of the elongated base portion coupling body 22A coated with the adhesive 31, and the particles of the water-absorbent polymer 41 are fixed to the base sheet 22 via the adhesive 31. In the embodiment shown in FIG. 1, while conveying by the vacuum conveyor 60 in the coating step, the strip-shaped base body connecting body 22A coated with the adhesive 31 on one side (upper surface) is made into strips. The base body connecting body 22A is located on the suction box 64. During this period, the polymer introduction part 42 of the water-absorbing polymer dispersion part 40 is applied to one surface (upper surface) of the long base body connecting body 22A. ) The adhesive 31 is dispersed with particles of the water-absorbing polymer 41. By dispersing the particles of the water-absorbent polymer 41 in this manner, the particles of the water-absorbent polymer 41 are fixed to one surface (upper surface) of the elongated base portion connecting body 22A via the adhesive 31.

<Cut off step>

Then, for the elongated base portion connecting body 22A to which the water-absorbing polymer 41 is fixed, by The cutting portion 70 cuts the non-cutting portion 3 so as to connect the cut portions 2 adjacent to each other in the conveying direction X, thereby cutting the strip-shaped base body connecting body 22A into a plurality of the aforementioned strips状基体部 1a. Through this step, a plurality of absorbent units 1A are formed, and the absorbent units 1A are provided with particles of the water-absorbent polymer 41 fixed to at least one surface of the elongated base portion 1a via the adhesive 31. In this step, it is preferable to cut the non-cutting portion 3 by applying an outward force in two directions opposite to each other along the surface direction of the elongated base portion connecting body 22A to be conveyed. The strip-shaped base portion connecting body 22A is cut into a plurality of the above-mentioned long strip-shaped base portions 1a. In this step, there is no particular restriction as long as the outward force is applied to the substrate sheet 22 in any direction along the XY plane in two directions opposite to each other. However, the equipment of the manufacturing apparatus 10 is set From the viewpoint of convenience, it is preferable to apply an outward force along the X direction or the Y direction.

In the embodiment shown in FIG. 1, by conveying the elongated base portion connecting body 22A through the cut-off portion 70, an outward force is applied in two directions opposite to each other along the surface direction of the base sheet 22 The non-cutting part 3 is cut away. As shown in FIG. 4, when an arcuate bending roller such as a middle and high roller is used as the cut-off portion 70, the cut-out portion can be made by conveying the elongated base body connecting body 22A through the peripheral surface of the arcuate bending roller. 2. In the method of expanding the width in the Y direction, outward force is applied to the elongated base body connecting body 22A in two directions opposite to each other. This outward force is borne by the non-cutting portion 3 existing between the cut portions 2 adjacent to each other along the conveying direction X, whereby the non-cutting portion 3 can be moved along the cut portion 2 adjacent to the conveying direction X. Cut to connect the cut portions 2 adjacent to each other in the conveying direction X.

In addition, when a tension roller is used as the cut-off portion 70, for example, the elongated base body connecting body 22A is transported between a pair of first tension rollers and a pair of second tension rollers, and the burden is carried along the elongated base body. The tension in the conveying direction X of the part connecting body 22A, the pair of first tension rollers rotate in the same direction as the X direction, and the pair of second tension rollers are arranged on the downstream side of the first tension roller and Rotate in the same direction as the X direction at a faster rotation speed than the first tension roller. By carrying the elongated base body connecting body 22A while bearing the tension in the conveying direction X, the elongated base body connecting body 22A can be extended in the conveying direction X, and the base sheet 22 can be opposite to each other. Apply outward force in both directions. This outward force is borne by the non-cutting part 3 existing between the cut parts 2 adjacent to each other in the longitudinal direction X as in the above case, whereby the non-cutting part 3 can be adjacent to each other along the conveying direction X The cut portion 2 is cut, and the cut portions 2 adjacent in the longitudinal direction X are connected to each other.

From the viewpoint of further reducing the looseness or shaking during conveyance of the base sheet 22 (the elongated base body connecting body 22A) having the cut portion 2, and the viewpoint that the non-cut portion 3 can be easily cut, the cut The length L2 in the conveying direction X of the portion 2 (refer to Figures 3(a) to (d)) is preferably 0.1 mm or more, more preferably 0.5 mm or more, and the upper limit is preferably 200 mm or less, and more preferably 100 mm the following. Specifically, the length L2 is preferably 0.1 mm or more and 200 mm or less, and more preferably 0.5 mm or more and 100 mm or less. Such an elongated base portion connecting body 22A can be configured, for example, by appropriately adjusting the interval between the cutter 24a of the rotary punch 24A and the flat portion 24b in the substrate sheet cutting portion 20 so that the length L2 falls within the above range The base sheet cut portion 20 can be easily obtained.

Also, from the same point of view, the length L3 in the conveying direction X of the non-cutting portion 3 between adjacent cut portions 2 along the conveying direction X (refer to Figs. 3(a) to (d)) is preferably 0.1 mm or more, more preferably 0.5 mm or more, and its upper limit is preferably 10 mm or less, more preferably 5 mm or less. Specifically, the length L3 is preferably 0.1 mm or more and 10 mm or less, more preferably 0.5 mm or more and 5 mm or less. Such an elongated base portion connecting body 22A can be configured, for example, by appropriately adjusting the interval between the cutter 24a of the rotary punch 24A and the flat portion 24b in the substrate sheet cutting portion 20 so that the length L3 falls within the above range The base sheet cut portion 20 can be easily obtained.

As described above, as shown in Figs. 5(a) and (b) and Fig. 6, the absorbent body 1 manufactured from the cut-out portion forming step to the cut-off step becomes one equipped with a plurality of absorbent units 1A, which absorb The sex unit 1A is provided with: a long substrate portion 1a having a transverse direction Y, a longitudinal direction X longer than the transverse direction Y, and a thickness direction Z; and particles of a water-absorbing polymer 41 fixed to the elongated substrate via an adhesive 31 At least one face of part 1a. Moreover, each absorptive unit 1A is arranged so that the longitudinal direction may face at least one direction. In the absorbent body 1 shown in FIG. 6, the surface on which the water-absorbent polymer 41 is fixed, that is, the upper surface in the thickness direction Z becomes the skin-facing surface facing the wearer's skin, and the other surface of the elongated base portion 1a That is, the surface below the thickness direction Z becomes a non-skin facing surface.

In this embodiment, as shown in FIG. 5(a), the cutout portion 2 is formed to extend along the longitudinal direction X of the absorbent body 1, so that the longitudinal direction X of the absorbent unit 1A faces the longitudinal direction X of the absorbent body 1 Configure in the same direction. The elongated base portion 1a constituting the absorbent unit 1A is formed by providing the cutout portion 2 in the base sheet 22, so the elongated base portion 1a and the base sheet 22 are substantially the same. The absorbent units 1A adjacent to each other in the Y direction are separated from each other by the cut part 2 and the non-cut part 3 cut by the cutting step.

The absorber 1 shown in FIG. 5(a) is formed so that a plurality of notches 2 extend continuously in the conveying direction X. From the viewpoint of preventing the shaking of the transport of the absorbent body 1, as shown in FIG. 5(b), a non-cutting area NT where the notch 2 is not formed may be arranged at both ends of the notch 2 in the transport direction X . When disposing the non-cutting area NT, in the absorbent body 1, the length of the cut portion 2 sandwiched between the non-cutting areas NT in the conveying direction X is preferably set to about 0.5 mm or more and 100 mm or less. In order to form such a non-cutting area NT, for example, the cutting blade 24a of the rotary punch 24A may be separated from the substrate sheet 22 for a fixed time in the cut portion forming step, or the peripheral surface of the rotary punch 24A may correspond to The way to set the length of the non-cutting area NT does not exist The flat portion 24b of the cutter 24a is formed.

As shown in FIG. 5(a), the absorbent body 1 manufactured in the present invention is formed in a rectangular shape long in the longitudinal direction X in the state before use. The length of the longitudinal direction X of the absorber 1 is about 100 mm or more and 1000 mm or less, and the length (width) of the transverse direction Y is about 50 mm or more and 300 mm or less. Also, as shown in FIG. 5(b), when the absorbent body 1 is provided with the non-cutting area NT, the cut-off portion 70 does not adjoin the non-cutting area NT along the conveying direction X From the standpoint of cutting the cut portion 2, the length of the non-cutting area NT in the longitudinal direction X is preferably at least longer than the length of the non-cutting portion 3 in the longitudinal direction X. Specifically, it is preferable to cut the non-cutting area NT The length of the longitudinal direction X is about 10 mm or more and 500 mm or less, and the length (width) of the transverse direction Y of the non-cutting area NT is about 50 mm or more and 300 mm or less.

From the viewpoints of the supporting amount of the water-absorbent polymer 41, swelling hindrance, flexibility, air permeability, and maintenance of the sheet shape, the width W2 in the lateral direction Y of the elongated base portion 1a is preferably 0.3 mm or more and 10 mm Hereinafter, it is more preferably 0.6 mm or more and 2 mm or less, and still more preferably 0.6 mm or more and 1.8 mm or less. The width W2 in the lateral direction Y of the elongated base portion 1a can be changed to a desired value by adjusting the interval between the adjacent cutting knives 24a of the rotary punch 24A used in the step of forming the cut portion. The width. In addition, the length in the longitudinal direction X of the elongated base portion 1a is preferably 0.4 mm or more and 1000 mm or less, more preferably 0.5 mm or more and 800 mm or less, and still more preferably 1 mm or more and 600 mm or less.

When the absorbent unit 1A is arranged such that the longitudinal direction X of the absorbent body 1 faces the longitudinal direction X of the absorbent body 1, the absorbent unit 1A is preferably arranged with 3 or more and 1000 or less per absorbent body, and more preferably To configure 50 or more and 500 or less. In addition, when the absorbent unit 1A is arranged such that the longitudinal direction X of the absorbent unit 1A faces the transverse direction Y of the absorbent body 1, the absorbent unit 1A is preferably arranged at 3 or more and 3,500 or less per absorbent body, and further Better To configure 50 or more and 2000 or less. The counting method of the absorptive unit 1A is defined as the number of absorptive units 1A when the number of absorptive units 1A intersecting the line reaches the maximum when an imaginary straight line is drawn in the transverse direction Y. Furthermore, as shown in FIG. 6, the absorptive unit 1A is comprised including the elongate base part 1a, Therefore, the number of the absorptive unit 1A is the same as the number of the elongate base part 1a.

As described above, since the absorbent unit 1A includes the elongated base portion 1a, it is preferable to configure the base sheet cutting portion 20 in such a way that the length of the elongated base portion 1a in the longitudinal direction X is It is preferably 0.4 mm or more and 1000 mm or less, more preferably 0.5 mm or more and 800 mm or less, and still more preferably 1 mm or more and 600 mm or less. Similarly, it is preferable to form the substrate sheet cutting portion 20 in such a manner that the width W2 in the lateral direction Y of the elongated base portion 1a is preferably 0.3 mm or more and 10 mm or less, more preferably 0.6 mm or more And 2 mm or less, More preferably, it is 0.6 mm or more and 1.8 mm or less. In addition, it is preferable to configure the base sheet cutting portion 20 in such a manner that the absorbent unit 1A is arranged for each absorbent body, preferably 3 or more and 1000 or less, and more preferably 50. Above and below 500. The elongated base portion 1a and the absorptive unit 1A satisfying these ranges can be formed by, for example, by appropriately changing the interval between the plurality of cutting knives 24a of the rotary punch 24A so as to be within the above-mentioned range. form.

From the viewpoint of improving the diffusibility of the liquid in the absorbent unit and improving the utilization efficiency of the water-absorbent polymer 41, the base sheet 22 is preferably a hydrophilic sheet. As the hydrophilic sheet, for example, a sheet composed of a hydrophilic material can be used. Examples include paper, non-woven fabrics, cloths, and synthetic sponges formed by foaming synthetic resins. Among them, even if they are thin, the tensile strength is relatively high, and they are thin and can impart flexibility. In terms of it, it is preferable to use non-woven fabric. These hydrophilic sheets may be used alone or in combination of two or more kinds. As the nonwoven fabric, it is preferable to use hydrophilic nonwoven fabric containing hydrophilic fibers as constituent fibers, hydrophilic nonwoven fabric containing fibers imparting hydrophilicity to synthetic fibers as constituent fibers, and the like. The basis weight of the non-woven fabric is preferably 5 g/m ² or more and 100 g/m ² or less, and more preferably 10 g/m ² or more and 40 g/m ² or less. As the hydrophilic non-woven fabric, for example, spunbonded non-woven fabrics, melt-blown non-woven fabrics, spunlace non-woven fabrics, and hot-air non-woven fabrics known in the art can be used without particular limitation.

As the water-absorbing polymer 41, various ones previously used in the technical field of the absorbent article can be used, for example, sodium polyacrylate, acrylic acid-vinyl alcohol copolymer, sodium polyacrylate crosslinked body, (starch-acrylic acid) ) A graft polymer, an isobutylene-maleic anhydride copolymer and a saponified product thereof, potassium polyacrylate, or cesium polyacrylate, etc., may be used alone or in combination of two or more. As the particles of the water-absorbent polymer 41, there are an amorphous type, a block type, a bag type, a pellet aggregation type, a spherical type, etc. according to the difference in shape, and any type can be used. The basis weight of the water-absorbing polymer 41 is preferably 10 g/m ² or more and 500 g/m ² or less, and more preferably 50 g/m ² or more and 300 g/m ² or less.

In the case of using a spherical type as the water-absorbent polymer 41, from the viewpoint that the swelling of the particles of the water-absorbent polymer 41 adjacent to each other is less likely to be hindered, before use (before swelling) The average particle diameter of the particles of the water-absorbing polymer 41 in the state is preferably 20 μm or more and 700 μm or less, and more preferably 200 μm or more and 500 μm or less. On the other hand, the average particle size of the particles of the water-absorbing polymer 41 in the swollen state is preferably 200 μm or more and 3000 μm or less, and more preferably 800 μm or more and 2000 μm or less. The average particle diameter of the particles of the water-absorbent polymer 41 before and after use can be obtained by, for example, the measurement method described in JP 2017-070498 A.

As the adhesive 31, for example, a hot melt adhesive is preferably used. As the hot-melt adhesive, styrene-based, olefin-based, etc. can be cited. As styrene-based hot melt adhesives, styrene-butadiene-styrene copolymer (SBS), styrene-isoprene-styrene copolymer (SIS), and styrene-hydrogenated SBS can be used. Ethylene-butene-styrene copolymer (SEBS), and a blended hot-melt adhesive formed by blending two or more of them. Among them, from the viewpoint of easily obtaining a balance between contact adhesion and cohesion, it is particularly preferable to use a blended hot melt adhesive of SIS and SBS, or a blended hot melt adhesive of SIS and SEBS. The coating amount of the hot melt adhesive is preferably 0.5 g/m ² or more and 100 g/m ² or less, and more preferably 5 g/m ² or more and 50 g/m ² or less.

The absorbent body 1 manufactured by the manufacturing method of the present invention is preferably used for absorbent articles. Absorbent articles are generally used to absorb and retain body fluids such as urine or menstrual blood. Absorbent articles include, for example, disposable diapers, menstrual napkins, incontinence pads, etc., but are not limited to these, and widely include articles for absorbing liquid discharged from the human body.

Above, the present invention has been described based on the preferred embodiments of the present invention, but the present invention is not limited to the above-mentioned embodiments.

The absorbent body 1 shown in FIG. 6 is formed using a plurality of absorbent units 1A having the same width of the elongated base portion 1a, but it can also be formed in such a way that the widths of the elongated base portion 1a are different.

In addition, the absorbent body 1 shown in FIG. 6 only has a water-absorbent polymer 41 fixed on one surface (upper surface) of the elongated base portion 1a, but it may be, for example, on the side edge portion of the elongated base portion 1a or another A water-absorbing polymer 41 is also fixed on the surface of one surface (lower surface). When the water-absorbent polymer 41 is also fixed on the other surface, the water-absorbent polymer 41 is fixed to one of the elongated base body connecting bodies 22A through the adhesive 31 through the coating step and the polymer spreading step After the surface, use a reversing roller to reverse the other surface of the elongated base portion coupling body 22A so as to face the integrated device 50, and perform the coating step and the polymer spreading step again, thereby fixing the water absorption Polymer 41.

Regarding the above embodiments, the present invention further discloses the manufacture of the following absorber Method and its manufacturing device.

<1>

A method for manufacturing an absorbent body, the absorbent body is provided with a plurality of absorbent units, the absorbent unit is provided with: a long strip-shaped base portion having a transverse direction, a longitudinal direction with a length longer than the transverse direction, and a thickness direction; and particles of a water-absorbing polymer , Which is fixed to at least one surface of the elongated base portion via an adhesive; the manufacturing method of the absorbent body includes the step of forming a cut portion, which is attached to the belt-shaped substrate sheet to be conveyed and is formed intermittently along the conveying direction A plurality of notches extending along the conveying direction and spaced apart in the width direction, which is a direction orthogonal to the conveying direction, thereby forming non-cutting sections arranged between the notches adjacent in the conveying direction An elongated substrate connecting body connecting a plurality of the elongated substrates in the width direction; a coating step, which is to apply an adhesive to one surface of the elongated substrate connecting body; a polymer spreading step , Which is to spread particles of water-absorbent polymer on the surface coated with the above-mentioned adhesive, and fix the particles of the water-absorbent polymer to the above-mentioned elongated base body connecting body through the adhesive; and a cutting step, This is achieved by cutting the non-cutting portion so that the cut portions adjacent to each other along the conveying direction are connected to each other, and the elongated base body connecting body is cut into a plurality of the elongated base body portions And a plurality of the above-mentioned absorptive units are formed.

<2>

The method for manufacturing an absorbent body as in the above item <1>, wherein in the cut portion forming step, the cut portion is formed so that the non-cut portion is discontinuous in the width direction.

<3>

The manufacturing method of the absorbent body as in the above <1> or <2>, wherein the cut part is formed In the step, the notch is formed linearly along the conveying direction.

<4>

The method of manufacturing an absorbent body as described in the above <1> or <2>, wherein in the step of forming the notch, the notch is formed in a wave shape along the conveying direction.

<5>

The method for manufacturing an absorbent body according to any one of the above <1> to <4>, wherein in the cutting step, the elongated base body is connected to the two opposite directions along its surface The non-cutting portion is cut by applying an outward force, thereby cutting the elongated base body portion coupling body into a plurality of the elongated base body portions.

<6>

The method for manufacturing an absorbent body as described in the above item <5>, wherein in the cutting step, the non-cutting portion is cut by applying an outward force in the width direction of the elongated base body connecting body, thereby The elongated base body part coupling body is cut into a plurality of elongated base body parts.

<7>

The method for manufacturing an absorbent body as in the above item <5>, wherein in the cutting step, the non-cutting portion is cut by applying an outward force along the conveying direction of the elongated base body connecting body, thereby The elongated base body part coupling body is cut into a plurality of elongated base body parts.

<8>

The method for manufacturing an absorbent body according to any one of the above <1> to <4>, wherein in the cutting step, the non-cutting is performed by applying an external force generated by vibration to the long-shaped base body connecting body The broken portion is cut to cut the elongated base body portion coupling body into a plurality of the elongated base body portions.

<9>

The method for manufacturing an absorbent body as described in any one of <1> to <8>, wherein the length of the cut portion in the elongated base body connecting body in the conveying direction is preferably 0.1 mm or more, more preferably 0.5 mm Above, the upper limit thereof is preferably 200 mm or less, more preferably 100 mm or less, specifically, 0.1 mm or more and 200 mm or less, and more preferably 0.5 mm or more and 100 mm or less.

<10>

The method for manufacturing an absorbent body as described in any one of <1> to <9> above, wherein the length of the non-cutting portion between adjacent cut portions along the conveying direction in the conveying direction is preferably 0.1 mm or more, and more It is preferably 0.5 mm or more, and the upper limit thereof is preferably 10 mm or less, more preferably 5 mm or less, specifically, preferably 0.1 mm or more and 10 mm or less, more preferably 0.5 mm or more and 5 mm or less.

<11>

The method for manufacturing an absorbent body as described in any one of the above <1> to <10>, wherein the width of the elongated base portion in the lateral direction is preferably 0.3mm or more and 10mm or less, more preferably 0.6mm or more and 2mm or less , More preferably, it is 0.6 mm or more and 1.8 mm or less.

<12>

The method for manufacturing an absorbent body as in any one of the above <1> to <11>, wherein the longitudinal length of the elongated base portion is preferably 0.4 mm or more and 1000 mm or less, more preferably 0.5 mm or more and 800 mm or less , And more preferably 1 mm or more and 600 mm or less.

<13>

The method for manufacturing an absorbent body as described in any one of <1> to <12>, wherein for each absorbent body, it is preferable to arrange 3 or more and 1000 or less absorbent units, and more preferably arrange There are more than 50 and less than 500 absorbent units.

<14>

A manufacturing device for an absorbent body, the absorbent body is provided with a plurality of absorbent units, the absorbent unit is provided with: an elongated base portion having a transverse direction, a longitudinal direction with a length longer than the transverse direction, and a thickness direction; and particles of a water-absorbing polymer , Which is fixed to at least one surface of the elongated base portion via an adhesive; the manufacturing device of the absorbent body includes: a substrate sheet cutting section which intermittently moves along the conveying direction of the conveyed strip-shaped substrate sheet A plurality of notches are formed extending along the conveying direction and spaced apart in the width direction, which is a direction orthogonal to the conveying direction, thereby forming a non-cutting portion between the notches disposed adjacent in the conveying direction A strip-shaped base body connecting body that connects a plurality of the strip-shaped base body parts in the width direction; an adhesive coating part, which coats the adhesive on one side of the strip-shaped base body connecting body; water absorption A polymer dispersion part, which spreads particles of a water-absorbent polymer on the surface coated with the above-mentioned adhesive, and fixes the particles of the water-absorbent polymer to the above-mentioned elongated base body connecting body through the adhesive; and A separating portion, which cuts the non-cutting portion so as to connect the cut portions adjacent to each other in the conveying direction, and cuts the elongated base portion connecting body into a plurality of the elongated shapes The base part forms a plurality of the above-mentioned absorptive units.

<15>

The apparatus for manufacturing an absorbent body according to the above <14>, wherein the cut portion of the base sheet is formed so that the non-cut portion is discontinuous in the width direction.

<16>

The manufacturing device of the absorbent body as in the above <14> or <15>, wherein the above-mentioned substrate sheet is cut The part is formed so that the said notch part may be formed linearly along the conveyance direction.

<17>

The apparatus for manufacturing an absorbent body according to the above item <14> or <15>, wherein the base sheet cutting portion is configured to form the cut portion in a wave shape along the conveying direction.

<18>

The apparatus for manufacturing an absorbent body according to any one of <14> to <17> above, wherein the cut-off portion is capable of applying a direction to the elongated base body connecting body in two directions opposite to each other along its surface direction. It is constituted by means of external forces.

<19>

The manufacturing apparatus of the absorbent body in the above item <18>, wherein the cut-off portion is configured in a manner capable of applying an outward force along the width direction of the elongated base body connecting body.

<20>

As in the manufacturing device of the absorbent body in the above item <19>, the central area of the peripheral surface or the axial direction of the rotating shaft is more protruding than the lateral area located on the side of the central area, and becomes an outward convex The shape of the bow-shaped bending roller.

<21>

The manufacturing apparatus of the absorbent body in the above item <18>, wherein the cut-off portion is configured to be able to apply an outward force along the conveying direction of the elongated base body connecting body.

<22>

The apparatus for manufacturing an absorbent body in the above item <21>, wherein the cut-off portion is a tension roller that generates tension on the elongated base body connected body in the conveying direction.

<23>

The manufacturing device of the absorbent body in any one of the above <14> to <17>, wherein the above cut The separated portion is configured to be able to apply an external force generated by vibration to the elongated base portion coupling body.

<24>

The manufacturing device of the absorbent body as described in any one of the above <14> to <23>, wherein the length of the cut portion in the elongated base body connecting body in the conveying direction is preferably 0.1mm or more, more preferably 0.5 mm or more, and the upper limit is preferably 200 mm or less, more preferably 100 mm or less, to form the above-mentioned substrate sheet cut section, specifically, preferably 0.1 mm or more and 200 mm or less, 0.5 mm or more and 100 mm or less In this way, the above-mentioned substrate sheet cutting portion is constructed.

<25>

As for the manufacturing apparatus of the absorbent body in any one of the above-mentioned <14> to <24>, the length of the non-cutting part between adjacent cut parts along the conveying direction in the conveying direction is preferably 0.1mm or more, It is more preferably 0.5 mm or more, and the upper limit thereof is preferably 10 mm or less, and more preferably 5 mm or less to form the above-mentioned substrate sheet cut portion. Specifically, it is preferably 0.1 mm or more and 10 mm or less, and more preferably The above-mentioned base sheet cut portion is configured to be 0.5 mm or more and 5 mm or less.

<26>

The apparatus for manufacturing an absorbent body according to any one of the above items <14> to <25>, wherein the width in the lateral direction of the elongated base portion is preferably 0.3mm or more and 10mm or less, more preferably 0.6mm or more and 2mm Hereinafter, it is more preferable to configure the above-mentioned base sheet cutting portion to be 0.6 mm or more and 1.8 mm or less.

<27>

The manufacturing apparatus of the absorbent body as described in any one of the above <14> to <26>, wherein the longitudinal length of the elongated base body is preferably 0.4 mm or more and 1000 mm or less, and then Preferably it is 0.5 mm or more and 800 mm or less, More preferably, it is 1 mm or more and 600 mm or less to form the said base material sheet cutting part.

<28>

The device for manufacturing an absorbent body as described in any one of <14> to <27> above, wherein for each absorbent body, it is preferable to arrange 3 or more and 1000 or less absorbent units, and more preferably 50 or more and 500 or less absorptive units constitute the above-mentioned base sheet cutting part.

[Industrial availability]

According to the present invention, stable adhesive application and polymer dispersion can be performed, and the absorbent body can be manufactured with high productivity.

2: Notch

3: Non-cutting part

22A: Long strip base body connecting body

L2: length

L3: length

W2: width

X: conveying direction

Y: width direction

Claims (28)

A method for manufacturing an absorbent body, the absorbent body is provided with a plurality of absorbent units, the absorbent unit is provided with: an elongated base portion having a transverse direction, a longitudinal direction with a length longer than the transverse direction, and a thickness direction; and particles of a water-absorbing polymer , Which is fixed to at least one surface of the elongated base portion via an adhesive; the manufacturing method of the absorbent body includes the step of forming a cut portion, which is attached to the conveyed belt-shaped substrate sheet and is formed intermittently along the conveying direction A plurality of notches extending along the conveying direction and spaced apart in the width direction, which is a direction orthogonal to the conveying direction, thereby forming non-cutting sections arranged between the notches adjacent in the conveying direction An elongated substrate connecting body connecting a plurality of the elongated substrates in the width direction; a coating step, which is to apply an adhesive to one surface of the elongated substrate connecting body; polymer spreading step , Which is to spread particles of water-absorbing polymer on the surface coated with the above-mentioned adhesive, and fix the particles of the water-absorbing polymer to the above-mentioned elongated matrix connecting body through the adhesive; and a cutting step, It cuts the non-cutting portion so that the cut portions adjacent to each other along the conveying direction are connected to each other, and the elongated base body connected body is cut into a plurality of the elongated base body portions And a plurality of the above-mentioned absorptive units are formed. The method for manufacturing an absorbent body according to claim 1, wherein in the cut portion forming step, the cut portion is formed so that the non-cut portion is discontinuous in the width direction. The method for manufacturing an absorbent body according to claim 1, wherein in the cut portion forming step, the cut portion is formed linearly along the conveying direction. The method for manufacturing an absorbent body according to claim 1, wherein in the cut portion forming step, the cut portion is formed wave-like in the conveying direction. The method for manufacturing an absorbent body according to claim 1, wherein in the cutting step, the non-removing force is applied to the elongated base body connecting body in two directions opposite to each other along its surface direction. The cutting portion is cut to cut the elongated base body portion coupling body into a plurality of the elongated base body portions. The method for manufacturing an absorbent body according to claim 5, wherein in the cutting step, the non-cutting portion is cut by applying an outward force in the width direction of the elongated base body connecting body, thereby cutting The elongated base portion connecting body is cut into a plurality of the elongated base portions. The method for manufacturing an absorbent body according to claim 5, wherein in the cutting step, the non-cutting portion is cut by applying an outward force in the conveying direction of the long-shaped base body connecting body, thereby cutting The elongated base portion connecting body is cut into a plurality of the elongated base portions. The method of manufacturing an absorbent body according to claim 1, wherein in the cutting step, the non-cutting portion is cut by applying an external force generated by vibration to the elongated base portion coupling body, thereby cutting the long The strip-shaped base portion connecting body is cut into a plurality of the above-mentioned long strip-shaped base portions. The method for manufacturing an absorbent body according to claim 1, wherein the length in the conveying direction of the cutout in the elongated base body connecting body is 0.1 mm or more and 200 mm or less. The method for manufacturing an absorbent body according to claim 1, wherein the length in the conveying direction of the non-cutting portion between the adjacent cut portions along the conveying direction is 0.1 mm or more and 10 mm or less. The method for manufacturing an absorbent body according to claim 1, wherein the width in the lateral direction of the elongated base portion is 0.3 mm or more and 10 mm or less. The method for manufacturing an absorbent body according to claim 1, wherein the longitudinal length of the elongated base portion is 0.4 mm or more and 1000 mm or less. The method for manufacturing an absorbent body according to claim 1, wherein for each absorbent body, 3 or more and 1,000 or less of the above-mentioned absorbent units are arranged. A manufacturing device for an absorbent body, the absorbent body is provided with a plurality of absorbent units, the absorbent unit is provided with: an elongated base portion having a transverse direction, a longitudinal direction with a length longer than the transverse direction, and a thickness direction; and particles of a water-absorbing polymer , Which is fixed to at least one surface of the elongated base portion via an adhesive; the manufacturing device of the absorbent body includes: a substrate sheet cutting portion, which intermittently moves along the conveying direction of the conveyed strip-shaped substrate sheet A plurality of notches are formed extending along the conveying direction and spaced apart in the width direction, which is a direction orthogonal to the conveying direction, thereby forming a non-cutting portion between the notches disposed adjacent in the conveying direction An elongated substrate connecting body that connects a plurality of the elongated substrates in the width direction; an adhesive coating part, which applies an adhesive to one surface of the elongated substrate connecting body; A polymer dispersion part, which spreads particles of a water-absorbent polymer on the surface coated with the above-mentioned adhesive, and fixes the particles of the water-absorbent polymer to the above-mentioned elongated base body connecting body through the adhesive; and A separating portion, which cuts the non-cutting portion so that the cut portions adjacent to each other along the conveying direction are connected to each other, and cut off the elongated base portion connecting body into a plurality of the elongated shapes The base part forms a plurality of the above-mentioned absorptive units. The apparatus for manufacturing an absorbent body according to claim 14, wherein the cut portion of the base sheet is formed so that the non-cut portion is discontinuous in the width direction. The apparatus for manufacturing an absorbent body according to claim 14, wherein the base sheet cutting portion is configured to form the cut portion linearly along the conveying direction. The apparatus for manufacturing an absorbent body according to claim 14, wherein the cut portion of the base material sheet is configured to form the cut portion in a wave shape along the conveying direction. The apparatus for manufacturing an absorbent body according to claim 14, wherein the cut-off portion is configured to be able to apply an outward force to the elongated base body connecting body in two directions opposite to each other along its surface direction. The apparatus for manufacturing an absorbent body according to claim 18, wherein the cut-off portion is configured in a manner capable of applying an outward force in the width direction of the elongated base body connecting body. The apparatus for manufacturing an absorbent body of claim 19, wherein the central area of the peripheral surface or the axial direction of the rotating shaft of the cut-off portion is more protruding than the lateral area located on the side of the central area, and becomes an outward convex shape The bow-shaped bending roller. The apparatus for manufacturing an absorbent body according to claim 18, wherein the cut-off portion is configured to be able to apply an outward force along the conveying direction of the elongated base body connecting body. The apparatus for manufacturing an absorbent body according to claim 21, wherein the cut-off portion is a tension roller that causes the elongated base body connected body to generate tension along the conveying direction. The apparatus for manufacturing an absorbent body according to claim 14, wherein the cut-off portion is configured to be able to apply an external force generated by vibration to the elongated base portion connecting body. The apparatus for manufacturing an absorbent body according to claim 14, wherein the cut portion of the base material sheet is configured such that the length in the conveying direction of the cut portion in the elongated base portion connecting body becomes 0.1 mm or more and 200 mm or less . The apparatus for manufacturing an absorbent body according to claim 14, wherein the base is configured such that the length of the non-cutting portion in the conveying direction between the cut portions adjacent in the conveying direction becomes 0.1 mm or more and 10 mm or less Sheet cutting part. The apparatus for manufacturing an absorbent body according to claim 14, wherein the substrate sheet cutting portion is configured such that the width in the lateral direction of the elongated base portion becomes 0.3 mm or more and 10 mm or less. The apparatus for manufacturing an absorbent body according to claim 14, wherein the substrate sheet cutting portion is configured such that the longitudinal length of the elongated base portion is 0.4 mm or more and 1000 mm or less. The apparatus for manufacturing an absorbent body according to claim 14, wherein the base sheet cutting portion is configured such that 3 or more and 1,000 or less absorbent units are arranged for each absorbent body.

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