JP2008104998A - Nozzle for forming slanting wavy pattern of viscous fluid material, method of applying viscous fluid material to substrate material, and product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nozzle capable of forming neighboring patterns closely and preventing dripping of a viscous fluid material. <P>SOLUTION: A nozzle (40) for forming approximately slanting wavy patterns of a viscous fluid material is provided with projections (46) slanting at a prescribed angle to the moving direction relatively to a substrate and arranged longitudinally, orifices (48) provided in the projections and for forming substantially continuous fibers of the viscous fluid material by discharging the viscous fluid material, and at least two gas holes (56) provided respectively in vicinities of both walls (46a) extending longitudinally in the projections (46) and for jetting a gas to the fibers of the viscous fluid material to vibrate the viscous fluid material in the direction approximately vertical to the longitudinal direction in the case the nozzle is attached to a coating material. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a nozzle for forming a gradient wave pattern of a viscous fluid material, a method for applying a viscous fluid material to a substrate, and a product.

  2. Description of the Related Art Conventionally, there are apparatuses that apply a hot melt adhesive in a zigzag manner to a PE back sheet such as a paper diaper, a flat sheet such as a nonwoven fabric, or a thread-like, string-like or belt-like substrate.

FIG. 1 is a perspective view showing a nozzle for applying a hot melt adhesive in a conventional zigzag pattern.
The nozzle 10 is provided with four protrusions 14 on the bottom surface 12. The protrusion 14 has a substantially trapezoidal cross section and extends parallel to the direction of movement of the substrate. The protrusion 14 is provided with an orifice 16 for discharging the adhesive. Four gas holes 18 are provided around each orifice 16. Two gas holes 18 are provided on each side of the protrusion 14.

FIG. 2 is an explanatory diagram schematically illustrating a zigzag pattern of a hot melt adhesive discharged from a conventional nozzle. 2A is a front view, FIG. 2B is a bottom view, and FIG. 2C is a diagram showing a pattern of an adhesive applied on a substrate.
When the adhesive is discharged by bringing the orifice 16 close to bring the adhesive adhesion pattern adhering to the substrate 20 closer, the adhesive discharge pattern 22 interferes with each other as shown in FIGS. 2 (a) and 2 (b). End up. This is because the air injected from the gas holes of the adjacent patterns interferes with each other. Therefore, the adhesive adhesion pattern 24 is disturbed as shown in FIG.

  The interference of the adhesive discharge pattern 22 appears in the adhesive adhesion pattern 24 as meandering of application edges and uneven application intervals, and is not particularly suitable for flat pattern application requiring high distribution accuracy. Furthermore, such disturbance of the adhesive adhesion pattern 24 reduces the adhesive strength and causes the contents to leak.

  Therefore, there is a nozzle provided with a shielding plate (bank) between adjacent orifices in order to prevent such disturbance of the adhesive adhesion pattern (see, for example, Patent Document 1).

  FIG. 3 is a perspective view showing a conventional nozzle provided with a shielding plate. The nozzle 30 is provided with a shielding plate 32 between adjacent orifices 36.

  FIG. 4 is an explanatory diagram schematically depicting a zigzag pattern of a hot melt adhesive discharged from a conventional nozzle provided with a shielding plate. 4, (a) is a front view, (b) is a bottom view, and (c) is a diagram showing a pattern of an adhesive applied on a substrate.

  As shown in FIGS. 4A and 4B, the shielding plate 32 prevents interference of air injected to the adhesive fibers discharged from the adjacent orifices 34, and the adhesive discharge pattern 36 does not interfere. Therefore, regular vibration motion of the adhesive fiber can be ensured. As a result, as shown in FIG. 4C, the adhesive adhesion pattern 38 also becomes regular and stable.

The shielding plate 32 can effectively prevent interference between adjacent adhesive discharge patterns. However, the adhesive is easily caught on the tip of the shielding plate 32. The adhesive deposited on the tip of the shielding plate 32 may fall off. When the adhesive deposited on the substrate 20 drips, there is a problem that a product defect occurs.
Also, there is a problem that adjacent adhesive patterns cannot be overlapped because each air flow becomes an obstacle.

JP 2002-126596 A

  An object of the present invention is to provide a nozzle and a viscous fluid application method in which accumulated viscous fluid does not sag.

  It is another object of the present invention to provide a nozzle and a viscous fluid material coating method in which interference of viscous fluid patterns does not occur even when adjacent viscous fluid patterns are brought close to each other.

  Still another object of the present invention is to provide a nozzle and a viscous fluid material coating method that can partially overlap adjacent viscous fluid patterns.

  Furthermore, the present invention provides a nozzle for forming a gradient wave pattern of a viscous fluid material, a method for applying the viscous fluid material to a substrate in a gradient wave pattern, and a product to which the viscous fluid material of the gradient wave pattern is attached. For the purpose.

In order to solve the above-described problem, the present invention employs the following nozzle.
That is, in a nozzle that forms a generally inclined wave-like pattern of viscous fluid material,
An orifice for discharging the viscous fluid material to form a substantially continuous fiber of viscous fluid material;
When the nozzle is attached to the coating apparatus, the nozzle is provided in a predetermined direction inclined at a predetermined angle with respect to the relative movement direction with respect to the base material, and gas is injected to the fibers of the viscous fluid material. And at least a pair of gas holes for vibrating the viscous fluid material in the predetermined direction.

In a nozzle that forms a generally inclined wave pattern of viscous fluid material,
A projection extending in a longitudinal direction inclined at a predetermined angle with respect to the relative movement direction with respect to the base material when the nozzle is attached to the coating apparatus;
An orifice provided in the protrusion for discharging the viscous fluid material to form a substantially continuous fiber of viscous fluid material;
At least two gas holes respectively provided in the vicinity of both walls extending in the longitudinal direction of the protrusion, and causing the viscous fluid material to vibrate in a direction substantially perpendicular to the longitudinal direction by injecting gas onto the fibers of the viscous fluid material Was provided.

  The protrusion has a trapezoidal cross section, and two gas holes are provided in the vicinity of both walls, and the predetermined angle is preferably about 45 °.

  A plurality of sets of the orifice and the gas hole provided in the protrusion may be provided in a line in a direction substantially perpendicular to the relative movement direction.

In the method of applying the viscous fluid material to the substrate,
A step of giving a relative movement in a predetermined direction between the substrate and the coating device;
Discharging the viscous fluid material to form a substantially continuous fiber of viscous fluid material;
Injecting gas from a plurality of gas holes to the fiber of the viscous fluid material to vibrate the fiber of the viscous fluid material in a direction inclined at a predetermined angle with respect to the predetermined direction;
Depositing the fibers of the viscous fluid material onto the substrate in a generally inclined wave pattern.

Also, a method for producing a manufactured article in which fibers of at least two viscous fluid materials are adhered on a substrate in a generally inclined wave pattern,
A step of giving a relative movement in a predetermined direction between the substrate and the coating device;
Discharging the viscous fluid material to form a substantially continuous fiber of viscous fluid material;
Injecting gas from a plurality of gas holes to the fiber of the viscous fluid material to vibrate the fiber of the viscous fluid material in a direction inclined at a predetermined angle with respect to the predetermined direction;
Depositing the fibers of the viscous fluid material onto the substrate in a generally inclined wave pattern.

A substrate having a first surface;
In a manufactured article comprising substantially continuous adhesive fibers or filaments attached to the first surface,
The fibers or filaments of the adhesive are generally formed by repeating a ramp-like pattern,
The substantially inclined wave-like pattern is an imaginary line when assuming a virtual line passing through a position substantially shifted from the substantially center or the center of the substantially inclined wave-like pattern in the continuous direction of the substantially inclined wave-like pattern that is repeatedly formed. The inclination of the generally inclined wave pattern crossing the line is set to be within 90 ° with respect to the virtual line.

Moreover, in the composite sheet formed by laminating at least two sheet members,
At least two substantially continuous adhesives adhered to one of the at least two sheet members so that the at least two sheet members are discharged from orifices arranged in a row to form adjacent columns. Each of the columns is coated with a generally inclined wave pattern that is repeatedly formed,
At least two adjacent columns of adhesive fibers or filaments, said generally inclined wave-like patterns partially overlapping,
The substantially inclined wave-like pattern is an imaginary line when assuming a virtual line passing through a position substantially shifted from the substantially center or the center of the substantially inclined wave-like pattern in the continuous direction of the substantially inclined wave-like pattern that is repeatedly formed. The inclination of the generally inclined wave pattern crossing the line is set to be within 90 ° with respect to the virtual line.

  The joined sheet members may be a nonwoven fabric and a moisture permeable resin sheet.

  The composite sheet may be used for disposable wearing articles such as disposable diapers, sanitary napkins, urine pads, and breast milk pads.

  Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in the following embodiments are not intended to limit the scope of the present invention only to those unless otherwise specified. Absent.

(Nozzle configuration)
A nozzle according to an embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a configuration in which four adhesive discharge patterns are formed from one nozzle is shown, but the present invention is not limited to this. Depending on the required coating width, the number can be changed from one to any number.

  FIG. 5 is a perspective view of a nozzle according to an embodiment of the present invention. FIG. 6 is a side view of a nozzle according to an embodiment of the present invention. FIG. 7 is a front view of a nozzle according to an embodiment of the present invention. FIG. 8 is a bottom view of a nozzle according to an embodiment of the present invention. FIG. 9 is a plan view of a nozzle according to an embodiment of the present invention. FIG. 10 is an enlarged cross-sectional view of the nozzle taken along line XX in FIG. FIG. 11 is an enlarged cross-sectional view of the nozzle taken along line XI-XI in FIG. 12 is an enlarged cross-sectional view of the nozzle taken along line XII-XII in FIG. FIG. 13 is an enlarged view of a portion surrounded by a circle XIII in FIG. In this embodiment, a hot melt adhesive is used as the viscous fluid material, and compressed air is used as the gas.

  As shown in FIGS. 5, 6, and 7, the nozzle 40 according to the embodiment of the present invention is provided with four trapezoidal protrusions 46 on the bottom surface 44 of the main body 42. As shown in FIG. 8, the four trapezoidal protrusions 46 are arranged side by side in a direction perpendicular to the movement direction X of the substrate at equal intervals of a predetermined distance P. The trapezoidal protrusion 46 extends long in a predetermined direction and has a trapezoidal cross section. As shown in FIG. 13, the longitudinal axis C of the trapezoidal protrusion 46 is provided to be inclined at a predetermined angle θ with respect to the movement direction X of the base material. In this embodiment, the angle θ is set to 45 °. The angle θ is preferably set in the range of 30 ° to 60 °.

  As shown in FIG. 11, the trapezoidal protrusion 46 is provided with an orifice 48 for discharging hot melt adhesive. As shown in FIG. 10, the orifice 48 communicates with a lateral passage 54 provided on the upper surface 52 of the main body 42 through a longitudinal passage 50. The vertical passage 50 of the four orifices 48 communicates with the horizontal passage 54. By supplying the hot melt adhesive to the lateral passage 54, the hot melt adhesive is discharged from the four orifices 48 as four hot melt adhesive fibers.

  As shown in FIG. 13, two gas holes 56 are provided on both sides of the trapezoidal protrusion 48. As shown in FIG. 12, the gas hole 56 opens obliquely toward the axis 48 a of the orifice 48. The axis 56 a of the gas hole 56 is inclined at substantially the same angle as the inclined surface 46 a of the trapezoidal protrusion 46.

  That is, as shown in FIG. 13, two gas holes 56 are opened close to the inclined surface 46 a on each side of the trapezoidal protrusion 46 on the bottom surface 44 of the nozzle 40. The opening of the two gas holes 56 on each side is a circle B centered on the axis 48c of the orifice 48 with respect to a straight line A inclined by a predetermined angle β with respect to the moving direction X of the substrate and passing through the center of the orifice 48. Are provided at positions distributed at a predetermined equal angle α. The angle α is set at 19 °. It is desirable that the angle α be as small as possible so that the openings of the two gas holes 56 on one side can be processed without sticking to each other and are provided at positions that are as close as possible. Further, the axis 56 a (bottom view) of each gas hole 56 passes through the center of the orifice 48.

  As shown in the present embodiment, when the trapezoidal protrusion 46 is provided on the nozzle 40, the straight line A is perpendicular to the longitudinal axis C of the trapezoidal protrusion 46, that is, the angle β is 45 °. It is set to be. However, the trapezoidal protrusion 46 may not be provided on the nozzle 40. When this trapezoidal protrusion is not provided, as described above, the gas hole 56 is inclined by a predetermined angle β with respect to the movement direction X of the base material, and the axis of the orifice 48 with respect to the straight line A passing through the center of the orifice 48. It is sufficient if it is provided at a position distributed at a predetermined equal angle α on the circumference of the circle B centering on 48c. Even when the trapezoidal protrusion 46 is not provided, the inclination angle β of the straight line A is set to 45 °. And it is preferable that this angle (beta) is set in the range of 30 degrees-60 degrees.

  The diameter of the gas hole 56 is good to set to 0.3 mm-1.0 mm. The angle formed by the axis 56a of the gas hole 56 and the axis 48a of the orifice 48 is set to 10 °. The angle is preferably set in the range of 6 ° to 14 °.

  The gas hole 56 communicates with a lateral air passage 58 provided on the upper surface 52 of the main body 42. By supplying the compressed air to the transverse air passage 58, the compressed air is injected from the four gas holes 56 around each orifice 48.

(Adhesive pattern)
FIG. 14 is a diagram schematically illustrating a discharge pattern of hot melt adhesive fibers. The orifice 48 discharges the hot melt adhesive fiber 60. The gas holes 56 direct the air stream 62 toward the hot melt adhesive fiber 60. The hot melt adhesive fiber 60 is affected by the air flow 62 and is about 45 ° in the direction intersecting with the longitudinal direction of the trapezoidal protrusion 46, that is, the moving direction X of the base material 20 in this embodiment. Causes a wave (zigzag, seam) amplitude (vibration) motion in the direction.

  In this case, each gas hole 56 is opened close to the inclined surfaces (walls) 46a on both sides of the trapezoidal protrusion 46 and is provided toward the center (axis line 48a) of the orifice 48. The air flow 62 injected from the air is guided by the inclined surface 46a along the inclined surface 46a of the projection 46 to become a stable flow and becomes a laminar flow (ordered flow), and the flow is directed toward the orifice axis 48a. And descend. Also from this point, it is possible to cause a stable vibration and a stable amplitude in the hot melt adhesive fiber 60, and to obtain a more regular inclined wave pattern.

  In this embodiment in which two gas holes 56 are provided on each side of the longitudinal direction of the trapezoidal projection 46, one gas is provided on each side of the projection 46 in order to obtain an inclined wave pattern having the same amplitude. Compared with the case where the hole is provided, the pressure of the compressed air injected from the gas hole 56 can be kept low. That is, the air consumption could be kept low. In this embodiment, on the contrary, when the pressure of the compressed air is the same as the pressure when one gas hole is provided on each side of the projection 46, the amplitude of the inclined wave pattern can be increased. In this embodiment, it is considered that the compressed air is injected from the two gas holes on one side, so that the air flow becomes a stable flow as described above and acts on the hot melt adhesive fiber 60.

  FIG. 15 is an explanatory diagram schematically illustrating a gradient wave pattern of a hot melt adhesive discharged from a nozzle according to the present invention. In FIG. 15, (a) is a front view, (b) is a bottom view, and (c) is a diagram showing a pattern of an adhesive applied on a substrate.

  As shown in FIG. 15B, the hot melt adhesive fiber discharged from the orifice 48 vibrates with an inclination of about 45 ° with respect to the movement direction X of the substrate 20, thereby forming an adhesive discharge pattern 64. Therefore, the hot melt adhesive fiber discharge patterns 64 discharged from the adjacent orifices 48 do not interfere with each other and can ensure regular vibration motion. As a result, as shown in FIG. 15C, the adhesive adhesion pattern 66 also becomes regular and stable. The adhesive adhesion pattern 66 is an inclined wave pattern inclined about 45 ° with respect to the movement direction X on the base material 20.

  According to the present embodiment, the adhesive fibers vibrate with an inclination of about 45 ° with respect to the moving direction of the base material 20, so that the air flow from the gas holes 56 interferes even when the adjacent orifices 48 are brought close to each other. There is nothing. Therefore, even if the distance between the orifices 48 is reduced, the adhesive discharge pattern 64 is not disturbed, and as a result, a part of the adhesive adhesion pattern 66 can be overlapped with each other. Thereby, the adhesive strength can be increased.

  FIG. 16 is a diagram showing overlapping adhesive adhesion patterns. Even if the patterns of adjacent adhesive fibers partially overlap, the adhesive adhesion pattern 68 can be maintained without being disturbed.

(Details of adhesive adhesion pattern)
FIG. 17 is a diagram showing details of the inclined wave pattern. FIG. 17 shows an adhesion pattern of four hot melt adhesive fibers discharged from four orifices. In the inclined wave pattern, when assuming a virtual line L passing through the position of the center of the pattern in the continuous direction of the pattern or slightly shifted up and down from the center, the inclination angle γ of the pattern crossing the virtual line L becomes the virtual line L. Ideally, it falls within the range of about 30 ° to about 60 °. If the inclination of the pattern crossing the virtual line L is within 90 ° with respect to the virtual line L, it can be said to be an inclined wave pattern.

Referring to FIG. 17, it is preferable that the inclined wave pattern meets the following conditions.
Number of strips: 1 or more One hot melt adhesive fiber discharged from one orifice is one strip. The number of strips can be changed according to the required coating width.

Swing width of the strip: 2-8mm
The runout width of the strip refers to the width of the pattern in the direction perpendicular to the movement direction X of the base material. The runout width of the strip is an element that can be changed by changing the pressure of the compressed air. If the runout width of the strip is less than 2 mm, the hot melt adhesive is applied in the form of a rod, so that it does not serve to apply a flat surface. When the runout width of the strip is 8 mm or more, the hot melt adhesive is scattered. Accordingly, the runout width of the strip is preferably 2 to 8 mm.

Vibration density of strip: 100 times / m to 300 times / m
The vibration density of the strip represents how many times the adhesive fiber vibrates per 1 m of the length of the substrate. If the coating speed (the moving speed of the base material) is lowered, the coating pattern becomes dense, but more patterns overlap in the moving direction of the base material. If the coating speed is increased, the density becomes lower.

Thickness of strip (wire diameter): 0.2mm to 0.8mm
If the flow rate of the hot-melt adhesive is reduced, the thickness of the strip (wire diameter of the adhesive fiber) becomes thin, but along with this, the adhesive fiber is easily torn off, causing scattering. If the flow rate of the hot melt adhesive is increased, the wire diameter of the adhesive fiber is increased.
If the wire diameter of the adhesive adhesion pattern applied to the substrate is smaller than 0.2 mm, the adhesive fibers may be scattered before adhering to the substrate. If the wire diameter of the adhesive adhesion pattern applied to the substrate is larger than 0.8 mm, the adhesive may protrude from the substrate when bonded.

(Example of product)
The hot-melt adhesive fiber having the inclined wave pattern according to the present embodiment is a flat base material such as a plastic sheet or nonwoven fabric, a thread-like or string-like base material such as thread rubber, and a moisture-permeable sheet or a porous sheet. It can apply | coat to the absorptive base material of non-contact. In addition, the present embodiment can be used in the manufacture of disposable wearing articles such as disposable diapers, sanitary napkins, urine pads, and breast milk pads that absorb and retain body fluids.

  FIG. 18 is a schematic configuration diagram of a composite sheet used in a disposable diaper. In the composite sheet 70 used for the disposable diaper, a non-woven fabric 71 and a moisture-permeable resin sheet 72 are overlapped and bonded via a hot melt adhesive 73. The hot melt adhesive 73 having a plurality of inclined wave patterns is attached to the adhesive surface of the resin sheet 72. Adjacent inclined wave patterns partially overlap each other. The inclined wave pattern is formed cleanly without disturbance. As a result, the adhesive strength is increased and the touch is improved.

According to the inclined wave pattern application according to the present embodiment, the interference of the air flow between the adjacent adhesive fibers is eliminated, and the meandering of the pattern and the fluctuation of the fluctuation width can be reduced without the shielding plate.
In the present embodiment, a nozzle in which a plurality of orifices are arranged in a row is shown, but the present invention is not limited to this, and a plurality of orifices can be arranged in a plurality of rows. A plurality of orifices can also be arranged in a staggered pattern.

  Further, in this embodiment such as FIG. 13, two gas holes 56 are provided on both sides of the trapezoidal protrusion 48, but the gas hole 56 is a circle on the straight line A whose opening passes through the center of the orifice 48. On the circumference B, that is, at the intersection of the straight line A and the circumference of the circle B, one on each side of the trapezoidal projection 46 is provided close to the inclined surface 46a of the projection 46 and opened on the bottom surface 44 of the nozzle 40. May be. In this case, the straight line A and the axis 56a (viewed from the bottom) of the gas hole coincide (match).

  The present invention is not limited to the above embodiments, and can be implemented in various other forms without departing from the features thereof. For this reason, the above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. The scope of the present invention is shown by the scope of claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

The perspective view which shows the nozzle for apply | coating a hot-melt-adhesive with the conventional zigzag pattern. Explanatory drawing which drew typically the zigzag pattern of the hot-melt-adhesive discharged from the conventional nozzle. The perspective view which shows the conventional nozzle which provided the shielding board (bank). Explanatory drawing which drew typically the zigzag pattern of the hot-melt-adhesive discharged from the conventional nozzle which provided the shielding board. The perspective view of the nozzle by the Example of this invention. The side view of the nozzle by the Example of this invention. The front view of the nozzle by the Example of this invention. The bottom view of the nozzle by the Example of this invention. The top view of the nozzle by the Example of this invention. FIG. 10 is an enlarged cross-sectional view of the nozzle taken along line XX in FIG. 9. FIG. 9 is an enlarged cross-sectional view of the nozzle taken along line XI-XI in FIG. 8. FIG. 9 is an enlarged cross-sectional view of the nozzle taken along line XII-XII in FIG. 8. The enlarged view of the part enclosed with the circle | round | yen XIII of FIG. The figure which illustrates typically the discharge pattern of a hot-melt-adhesive fiber. Explanatory drawing which drew typically the inclination wave-like pattern of the hot-melt-adhesive discharged from the nozzle by this invention. The figure which shows the adhesive adhesion pattern which overlapped. The figure which shows the detail of an inclined wave pattern. The schematic block diagram of the composite sheet used for a disposable diaper.

Explanation of symbols

40 Nozzle 42 Main body 44 Bottom surface 46 Trapezoidal projection 46a Inclined surface 48 Orifice 48a Orifice axis 50 Vertical passage 52 Top surface 54 Lateral passage 56 Gas hole 56a Gas hole axis 58 Lateral air passage 60 Hot melt adhesive fiber 62 Air flow 64 Adhesion Adhesive Discharge Pattern 66 Adhesive Adhesion Pattern 68 Overlapping Adhesive Adhesion Pattern 70 Composite Sheet 71 Nonwoven Fabric 72 Moisture Resin Sheet 73 Hot Melt Adhesive

Claims (10)

A nozzle that forms a generally inclined wave pattern of viscous fluid material,
An orifice for discharging the viscous fluid material to form a substantially continuous fiber of viscous fluid material;
When the nozzle is attached to the coating apparatus, the nozzle is provided in a predetermined direction inclined at a predetermined angle with respect to the relative movement direction with respect to the base material, and gas is injected to the fibers of the viscous fluid material. And at least a pair of gas holes for vibrating the viscous fluid material in the predetermined direction. A nozzle that forms a generally inclined wave pattern of viscous fluid material,
A protrusion extending in a longitudinal direction inclined at a predetermined angle with respect to a relative movement direction with respect to the base material when the nozzle is attached to the coating apparatus;
An orifice provided on the protrusion for discharging the viscous fluid material to form a substantially continuous fiber of viscous fluid material;
At least two gas holes that are provided in the vicinity of both walls extending in the longitudinal direction of the projection and inject gas into the fibers of the viscous fluid material to vibrate the viscous fluid material in a direction substantially perpendicular to the longitudinal direction. A nozzle characterized by comprising:   The nozzle according to claim 2, wherein the protrusion has a trapezoidal cross section, two gas holes are provided in the vicinity of both walls, and the predetermined angle is about 45 °.   4. The nozzle according to claim 2, wherein a plurality of sets of the orifice and the gas hole provided in the protrusion are provided in a line in a direction substantially perpendicular to a relative movement direction. 5. A method of applying a viscous fluid material to a substrate,
A step of giving a relative movement in a predetermined direction between the substrate and the coating device;
Discharging the viscous fluid material to form a substantially continuous fiber of viscous fluid material;
Injecting gas from a plurality of gas holes to the fiber of the viscous fluid material to vibrate the fiber of the viscous fluid material in a direction inclined at a predetermined angle with respect to the predetermined direction;
Depositing fibers of viscous fluid material onto a substrate in a generally inclined wave pattern. A method of producing an article of manufacture in which at least two fibers of a viscous fluid material are deposited on a substrate in a generally inclined wave pattern,
A step of giving a relative movement in a predetermined direction between the substrate and the coating device;
Discharging the viscous fluid material to form a substantially continuous fiber of viscous fluid material;
Injecting gas from a plurality of gas holes to the fiber of the viscous fluid material to vibrate the fiber of the viscous fluid material in a direction inclined at a predetermined angle with respect to the predetermined direction;
Depositing fibers of viscous fluid material onto a substrate in a generally inclined wave pattern. A substrate having a first surface;
Consisting of substantially continuous adhesive fibers or filaments attached to the first surface;
The fibers or filaments of the adhesive are generally formed by repeating a ramp-like pattern,
The substantially inclined wave-like pattern is an imaginary line when assuming a virtual line passing through a position substantially shifted from the substantially center or the center of the substantially inclined wave-like pattern in the continuous direction of the substantially inclined wave-like pattern that is repeatedly formed. An article of manufacture characterized in that the inclination of the generally inclined wave-like pattern crossing the line is within 90 ° with respect to the virtual line. A composite sheet formed by laminating at least two sheet members,
At least two substantially continuous adhesives adhered to one of the at least two sheet members so that the at least two sheet members are discharged from orifices arranged in a row to form adjacent columns. Each of the columns is coated with a generally inclined wave pattern that is repeatedly formed,
At least two adjacent columns of adhesive fibers or filaments, said generally inclined wave-like patterns partially overlapping,
The substantially inclined wave-like pattern is an imaginary line when assuming a virtual line passing through a position substantially shifted from the substantially center or the center of the substantially inclined wave-like pattern in the continuous direction of the substantially inclined wave-like pattern that is repeatedly formed. The composite sheet is characterized in that the inclination of the generally inclined wave-like pattern crossing the line is within 90 ° with respect to the virtual line.   The composite sheet according to claim 8, wherein the joined sheet members are a nonwoven fabric and a moisture-permeable resin sheet. The composite sheet according to claim 8 or 9, wherein the composite sheet is used for disposable wearing articles such as disposable diapers, sanitary napkins, urine pads, and breast milk pads.

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