JP2020051010A - Complex nonwoven fabric wiper and manufacturing method thereof - Google Patents

Abstract

To provide a complex nonwoven fabric wiper that has excellent appearance and optimum workability and sufficient liquid absorbability.SOLUTION: A complex nonwoven fabric wiper WP is formed by laminating and integrating a pulp fiber web PFW on a spun-bonded nonwoven fabric SW. The spun-bonded nonwoven fabric is formed so as to include multiple fusion points MP to connect spun resin fibers. Area of one fusion point is 0.10 to 0.50 mmand area ratio of the fusion point MP is set to 7 to 20 percent. Basis weight of the pulp fiber web is 30 to 70 g/m.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a composite type nonwoven fabric wiper obtained by hydroentangling a pulp fiber web and a spunbonded nonwoven fabric, and a method for producing the same.

  Since a wiper made of a composite nonwoven fabric including a pulp fiber web and a spunbonded nonwoven fabric is a nonwoven fabric having both a liquid absorbing property based on pulp fibers and a strength based on a spunbonded nonwoven fabric, an industrial wiper such as a rag is used. Also, it is widely used in various applications as a personal wiper such as a towel or a towel.

  For example, as disclosed in Patent Literature 1, after a pulp fiber web and a spunbonded nonwoven fabric are stacked, they are integrated by a hydroentanglement process of blowing a high-pressure water jet (water flow). Since the spunbonded nonwoven fabric has excellent strength, it functions as a backing layer of the manufactured composite nonwoven fabric wiper. On the other hand, the pulp fiber web has an excellent liquid absorbing function. Accordingly, such a composite type nonwoven fabric wiper is an excellent wiper having both advantages of a pulp fiber web having good absorbability to both aqueous and oily liquids and a spunbond nonwoven fabric having excellent strength. As can be provided to consumers.

Japanese Patent No. 2533260

  As for the spunbonded nonwoven fabric (referred to as a nonwoven continuous filament support in Patent Literature 1) used in Patent Document 1 and the like, those obtained by spunbonding a synthetic resin such as polypropylene are widely used. Has been adopted. In the spun bond process, the spun resin fibers are connected to each other at a plurality of points by point-like fusion parts (hereinafter, fusion points). Thereby, the spunbonded nonwoven fabric develops sheet strength and maintains the outer shape.

The fusion point is a portion where the resin fibers are melted and solidified, and is an important component for obtaining the strength of the spunbonded nonwoven fabric. However, as described above, the composite nonwoven fabric wiper obtained by hydroentangling the spunbonded nonwoven fabric and the pulp fiber web has the following disadvantages.
That is, in the case of producing a composite type nonwoven fabric wiper by a hydroentanglement treatment, the entanglement of the pulp fiber at the fusion point of the spunbonded nonwoven fabric tends to be insufficient (the pulp fiber is not easily entangled at the fusion point). Therefore, as the area of the fusion point of the spunbonded nonwoven fabric is larger, the portion where the pulp fiber entanglement is insufficient looks like a small hole, so the appearance of the completed wiper (also referred to as face feeling, ) Is inferior. On the other hand, if the area of the fusion point is small, the spunbonded nonwoven fabric tends to elongate during processing, and the dimensional stability is poor. As a result, there arises a problem that the processability of the spunbonded nonwoven fabric is poor.

  Further, since there is a strong demand for wipers with respect to a liquid absorbing property capable of reliably wiping water, oil, etc., it is desirable that the wiper be designed as a composite nonwoven fabric wiper containing a sufficient pulp fiber web. .

  Therefore, an object of the present invention is to provide a composite nonwoven fabric wiper that is excellent in appearance and processability and has sufficient liquid absorbing properties. Another object of the present invention is to propose a method for efficiently manufacturing the composite nonwoven fabric wiper.

The above object is a composite nonwoven fabric wiper in which a pulp fiber web is laminated and integrated on a spunbonded nonwoven fabric, wherein the spunbonded nonwoven fabric includes a plurality of fusion points connecting spun resin fibers. The area of one of the fusion points is 0.10 to 0.50 mm ² , and the area ratio of the fusion points is set to 7 to 20%; Has a basis weight of 30 to 70 g / m ² , which can be achieved by a composite nonwoven fabric wiper.

And it is preferable that the number of the fusion points is 10 to 150 / cm ² .
The fiber diameter of the fibers constituting the spunbonded nonwoven fabric is preferably 0.6 to 5.6 dtex.

  The spunbonded nonwoven fabric / pulp fiber web, which is the weight composition ratio of the spunbonded nonwoven fabric and the pulp fiber web, is preferably 40/50 to 10/90 (wt%).

  The object is a method for producing a composite nonwoven fabric wiper according to any of the above, including at least a hydroentanglement step of hydroentanglement processing the spunbonded nonwoven fabric and the pulp fiber web. It can also be achieved by the water jet nozzle for injecting a water jet having a hole diameter φ of 0.06 to 0.15 mm and an interval between the water jet nozzles of 0.4 to 1.0 mm.

  ADVANTAGE OF THE INVENTION According to this invention, while being excellent in an external appearance and processability, the composite nonwoven fabric wiper provided also with sufficient liquid absorption can be provided. Further, an efficient manufacturing method of such a nonwoven fabric wiper can be provided.

It is the figure which expanded typically and showed in order to explain the influence by the area of the fusion point in the spun bond nonwoven fabric used for the composite nonwoven fabric wiper concerning the present invention, and (a) shows the conventional composite type nonwoven fabric for comparison. FIG. 3B is a diagram illustrating a nonwoven fabric wiper, and FIG. 4B is a diagram illustrating a composite nonwoven fabric wiper according to the present invention. It is the figure which showed the range where the area of the fusion point and the area ratio of a spunbonded nonwoven fabric had a preferable relationship. It is the figure which showed about the manufacturing apparatus of the composite nonwoven fabric wiper which concerns on this invention.

  Hereinafter, a composite type nonwoven fabric wiper according to an embodiment of the present invention will be described with reference to the drawings. The composite nonwoven fabric wiper according to the present invention is a nonwoven fabric obtained by laminating a pulp fiber web on a spunbonded nonwoven fabric and integrating them. Since the adopted spunbonded nonwoven fabric has a characteristic configuration, the configuration of this point will be described first with reference to FIG.

  FIG. 1A shows, for comparison, a case where a composite nonwoven fabric wiper is manufactured using a conventionally general spunbonded nonwoven fabric SW. In the same figure, the upper stage shows the state of the water entanglement process. When the spunbonded nonwoven fabric SW and the pulp fiber web PFW placed thereon are conveyed in the web conveyance direction TD and come to the hydroentanglement device, a water jet WJ, which is a high-pressure water flow, is jetted. As a result, the pulp fibers constituting the pulp fiber web PFW are entangled not only with the pulp fibers but also with the fibers on the spunbonded nonwoven fabric SW side, thereby promoting the integration of the web.

  The lower part of FIG. 1A is a view showing a state of the manufactured composite nonwoven fabric wiper WP after the hydroentanglement process is completed. Spunbond nonwoven fabric SW located on the lower side includes a wide portion and a narrow portion. Here, the narrow portion is a portion that has been melt-solidified for bonding fibers, that is, the above-mentioned fusion point MP. At the fusion point MP, pulp fiber web PFW (pulp fiber PF constituting pulp fiber web PFW) is unlikely to be entangled. If such a fusion point MP is present, it looks like a small hole as described above, and the wiper is inferior in appearance. On the other hand, if the fusion point MP is too small, the dimensional stability is poor, resulting in a spunbonded nonwoven fabric SW that is inadequate in processing.

  The present inventor has studied in detail the problems caused by the above-mentioned fusion point, and by setting the properties of the fusion point MP formed on the spunbonded nonwoven fabric SW within a predetermined range, the composite type nonwoven fabric having excellent appearance and processability. It has been confirmed that the present invention can be obtained. FIG. 1B shows a case where a composite nonwoven fabric wiper according to the present invention is manufactured using a spunbonded nonwoven fabric SW in which both one area and the area ratio of the fusion point are set within a predetermined range. I have. FIG. 1B shows the same as FIG. 1A, and the same reference numerals are used for the same parts.

In the composite nonwoven fabric wiper according to the present invention, as shown in FIG. 1B, a spunbonded nonwoven fabric SW having a relatively small fusion point MP is used. As is clear from FIG. 1 (b), the fusion point MP, which is a portion where the pulp fibers are hardly entangled, becomes small, so that it becomes inconspicuous. Further, it is expected that the fusion point MP is concealed by the surrounding pulp fibers.
Specifically, the area (size) of one fusion point is preferably set to 0.10 to 0.50 mm ² . The fusion point is an important configuration related to the strength of the spunbonded nonwoven fabric, and the abundance rate of the fusion point MP per unit area, that is, the area ratio is preferably 7 to 20%. As a result, it is possible to suppress the occurrence of undesired elongation and to secure the necessary machining appropriateness. FIG. 2 shows a range in which the area of one fusion point and the area ratio have a preferable relationship. The pan-bonded nonwoven fabric manufactured so as to be within the set rectangular range will be adopted for the composite nonwoven fabric wiper according to the present invention. In FIG. 2, the square shape indicating a suitable range is slightly larger so as to surround the above specific numerical values of the upper and lower limits.
The fusion point is preferably set to 10 to 150 pieces / cm ² per unit area.

(Example)
Furthermore, for the composite nonwoven fabric wipers of Examples 1 to 5 and Comparative Examples 1 to 3 manufactured using spunbonded nonwoven fabrics having a fusion point set in accordance with the above conditions, the following criteria were used for the appearance and processing suitability. Was evaluated.
Appearance evaluation: Small holes on the surface of the composite nonwoven fabric wiper (the fusion point of the spunbonded nonwoven fabric is exposed
Was evaluated by the presence or absence of
Particularly excellent (Excellent A), problem-free appearance (Good), poor appearance with small holes (Not good).
Processing suitability: Using a spunbonded nonwoven fabric under the above conditions, a composite nonwoven fabric wiper is manufactured.
The dimensional stability and processability at the time were evaluated.
Excellent dimensional stability and excellent processability (excellent ◎), problem-free processability (good 〇), poor dimensional stability and poor processability (impossible ×).

In Examples 1 to 5 and Comparative Examples 1 to 3, a spun bond is set as shown in Table 1 below for one area (mm ² ), area ratio (%), and shape of the fusion point at the fusion point. Using a nonwoven fabric, a pulp fiber web produced by an air laid device was placed thereon to produce a composite nonwoven fabric wiper.

上記表１に示すように、実施例１〜５は製品ワイパーとして提供できるものであるが、比較例１〜３は外観評価、加工適正の評価のいずれかで不可であった。
上記実施例１〜５によると、融着点の面積は相対的に小さい０．１１〜０．５０ｍｍ^２であり、面積率については７．２〜１９．７％である。前述した図２において、実施例１〜５の位置を符号１〜５を付して白い丸で示している。黒い丸は比較例である。
図２で設定した四角形状の範囲内に実施例１〜５が入っており、融着点１個の面積が０．１０〜０．５０ｍｍ^２、面積率７．０〜２０．０％という条件を満たすスパンボンド不織布を採用するのが好ましいことが、これにより確認できる。
なお、融着点の形状を正方形、長方形、楕円形、円形等としたが、形状についての有意差は確認されなかった。

As shown in Table 1 above, Examples 1 to 5 can be provided as product wipers, but Comparative Examples 1 to 3 were unsatisfactory in either the appearance evaluation or the evaluation of processing adequacy.
According to the above Examples 1-5, the area of the bonding spots is relatively a small 0.11～0.50Mm ^2, the area ratio is 7.2 to 19.7%. In FIG. 2 described above, the positions of Examples 1 to 5 are denoted by reference numerals 1 to 5 and indicated by white circles. Black circles are comparative examples.
Examples 1 to 5 are included in the range of the square shape set in FIG. 2, the condition that the area of one fusion point is 0.10 to 0.50 mm ² and the area ratio is 7.0 to 20.0%. Thus, it can be confirmed that it is preferable to use a spunbonded nonwoven fabric satisfying the following.
The shape of the fusion point was square, rectangular, elliptical, circular, or the like, but no significant difference in the shape was confirmed.

In the composite nonwoven fabric wiper of the present invention, a pulp fiber web is laminated and integrated on a spunbonded nonwoven fabric satisfying the above-described conditions. The pulp fiber web used in the present composite nonwoven fabric wiper has a basis weight of 30 to 70 g / m ² . Accordingly, the composite nonwoven fabric wiper of the present invention can be a composite nonwoven fabric wiper having not only excellent appearance and processability but also sufficient liquid absorbing properties.
The weight ratio of the spunbonded nonwoven fabric to the pulp fiber web (spunbonded nonwoven fabric / pulp fiber web) is preferably 40/60 to 10/90 (wt%).
The fiber diameter of the fiber constituting the spunbonded nonwoven fabric is preferably 0.6 to 5.6 dtex.
In the composite nonwoven fabric wiper according to the present invention, for example, it is preferable to form a pulp fiber web using pulp having an average pulp fiber length of 1.0 to 5.0 mm. Specifically, the pulp fiber web is preferably formed using fibers of softwood bleached kraft pulp (NBKP) selected from the group consisting of radiata pine, slash pine, southern pine, lodgepole pine, spruce and Douglas fir. . A pulp fiber web made of any one pulp fiber may be used, or a pulp fiber web formed by mixing two or more pulp fibers.
The synthetic fibers constituting the spunbonded nonwoven fabric can be selected from nylon, vinylon, polyester, acryl, polyethylene, polypropylene, polystyrene and the like, and it is preferable to use polypropylene.

Hereinafter, a manufacturing apparatus suitable for manufacturing the composite nonwoven fabric wiper according to the present invention will be described with reference to the drawings.
First, a schematic configuration of the nonwoven fabric wiper manufacturing apparatus 1 will be described. The manufacturing apparatus 1 shown in FIG. 3 is provided with an airlaid apparatus 2, a spunbonded nonwoven fabric supplying apparatus 3 for supplying a spunbonded nonwoven fabric, and a suction apparatus 4 on the upstream side. The suction device 4 is arranged to face the lower side of the air-laid device 2.
Downstream from these devices 2, 3, and 4 in the web transport direction TD, a water entanglement device 5, a suction device 6, and a drying device 7 for jetting a water jet for performing a water entanglement process are sequentially provided from the upstream side. Are located. A winding device 8 for winding the continuously manufactured composite nonwoven fabric wiper WP is further provided downstream of the drying device 7.

  The air-laid apparatus 2 is configured to open a raw fiber pulp RP in which fibers are densely formed into a sheet form into pulp fibers, or a pulp fiber PF that has been blown with a blower (not shown) to an air-laid hopper 23. And a duct 22 for carrying.

An air-laid hopper 23 is disposed downstream of the duct 22. Inside the air-laid hopper 23, the pulp fibers in the defibrated state are designed to descend while dispersing, and gradually pile up at the lamination position 24 set on the lower surface to form the pulp fiber web PFW.
The suction device 4 is provided facing the lower side of the stacking position 24. More specifically, the suction device 4 has a suction portion 42 on the upper surface of the device main body 41, and the suction portion 42 moves the stacking position 24 so as to apply a suction force (negative pressure) to the pulp fiber web PFW. It has been set.
FIG. 3 illustrates a case where the pulp fiber web PFW is formed by arranging the air-laid hopper 23 and the suction device main body 41 one by one in one stage. However, the arrangement is not limited to this, and the arrangement of the air-laid hopper 23 and the suction device main body 41 may be changed to two or more multi-stages according to the basis weight (basis weight) and the production speed of the pulp fiber web PFW.

A transport wire 43 for transporting the web is provided around the suction device 4. The transport wire 43 can be placed on the pulp fiber web PFW on which the pulp fibers PF are deposited at the stacking position 24, and is arranged to transport the web to the downstream side. However, the pulp fiber web PFW is not directly placed on the transport wire 43. This will become clear in the following description.
The transport wire 43 is formed in an opening form (mesh) such that the suction force of the suction portion 42 extends to the opposite side (upper side).

A spunbonded nonwoven fabric supply device 3 is arranged below the airlaid device 2 and upstream of the suction device 4. The spunbonded nonwoven fabric SW prepared in advance is set in a roll shape in the spunbonded nonwoven fabric supply device 3. That is, as described above, the span in which the fibers are connected to each other at a fusion point satisfying the condition that the area is relatively smaller than the conventional spunbonded nonwoven fabric and the area ratio is within a predetermined range. The bond nonwoven fabric SW is formed in a roll shape, is drawn from the spunbond nonwoven fabric supply device 3, and is conveyed to the laminating position 24 on the above-described conveyance wire 43.
The weight ratio of the spunbonded nonwoven fabric to the pulp fiber web, that is, the ratio of the spunbonded nonwoven fabric / the pulp fiber web is preferably adjusted to 40/60 to 10/90 (wt%).

The pulp fiber web PFW described above is placed on the spunbonded nonwoven fabric SW located at the lamination position 24. At that time, at the laminating position 24, the suction force of the suction part 42 of the suction device 4 passes through the transport wire 43 and acts on the spunbonded nonwoven fabric SW and the pulp fiber web PFW thereon. Therefore, the preliminary laminate PWeb (laminated web) in which the spunbonded nonwoven fabric SW and the pulp fiber web PFW are laminated is transported to the downstream side.
By controlling the supply amount of the pulp fiber web PFW onto the spunbonded nonwoven fabric SW when the preliminary laminate PWeb is formed as described above, the pulp contained in the composite nonwoven fabric wiper manufactured by the present apparatus is controlled. The fiber web PFW is designed to have a basis weight of 30 to 70 g / m ² . For the basis weight of the pulp fiber web PFW, adjust the web transport speed and the supply amount per hour of the pulp fiber web PFW as appropriate, and confirm the basis weight of the pulp fiber web PFW of the manufactured composite nonwoven fabric wiper. Then, the basis weight may be set to be in a desired range.

The preliminary stacked body PWeb is maintained in a stacked state by being suction-compressed by the suction force of the suction device 4. At this time, the fibers of the upper pulp fiber web PFW are in a dense state. However, when the preliminary laminate PWeb is transported and charged into the downstream hydroentanglement device 5 as it is, a part of the pulp fiber PF may be soared by the water jet (high-pressure water flow).
Therefore, in the present manufacturing apparatus 1, the sandwiching roller 28 for stabilizing the mounting state of the pulp fiber web PFW on the spunbonded nonwoven fabric SW with the preliminary laminate PWeb sandwiched from above and below, and the upstream of the hydroentangler 5 On the side, a pre-wetting device 30 for providing moisture for preventing fiber scattering is provided. Prewetting device 30 preferably applies a suction force from spray nozzle 31 for spraying water mist from above preliminary laminate PWeb and the lower side of preliminary laminate PWeb (that is, the lower surface of pulp fiber web PFW). The suction device 32 is included.

Although FIG. 3 illustrates a case where the pre-wetting device 30 is provided as a new device in front of the hydroentanglement device 5 as described above, the present invention is not limited to this. With respect to a plurality of sets including a water jet head 51 and a suction device 52, which will be described later, included in the hydroentanglement device 5, a design change may be made such that the set located at the head is used as the pre-wet device 30. In this case, adjustment may be made so that low-pressure water mist is sprayed from the head water jet head 51.
In the case of the water entanglement device 5 in which the number of sets of the water jet head 51 and the suction device 52 sufficient for performing the water entanglement process is secured, the leading water jet head 51 and the suction device 52 are pressed as described above. Utilization as a wet device is effective in controlling the cost of the equipment.

Then, in the water entanglement device 5, the entanglement between the pulp fibers is promoted by spraying a high-pressure water jet on the preliminary laminate PWeb that has been processed by the holding roller 28 and the pre-wet device 30, which are the pretreatment unit. This promotes integration of the pulp fiber web PFW layer located on the upper side and the spunbonded nonwoven fabric SW layer located on the lower side (water entanglement treatment).
The water entanglement device 5 exemplarily shown in FIG. 3 has the water jet heads 51 arranged in multiple stages (four stages are illustrated in FIG. 3) along the transport direction TD.
FIG. 3 does not show the state of nozzles provided on the water jet head 51 extending in a direction perpendicular to the transport direction TD (web width direction), but a plurality of water jets in the width direction are shown. The jet nozzle is located at an appropriate position. The hole diameter φ of the water jet nozzle is preferably 0.06 to 0.15 mm. The interval between the water jet nozzles is preferably 0.4 to 1.0 mm.

  The water pressure at the time of performing the hydroentanglement treatment is desirably set in consideration of the basis weight of the pulp fiber web PFW and the spunbond nonwoven fabric SW. For example, it is preferable to select in the range of 1 to 30 MPa.

A suction device 52 is provided so as to face the water jet head 51. The suction force of the suction device 52 is applied to the lower side of the spunbonded nonwoven fabric SW located on the lower side while spraying the high-pressure water jet from the water jet head 51 on the pulp fiber web PFW located on the upper side. By the cooperative action of the water jet head 51 and the suction device 52, the pulp fiber on the pulp fiber web PFW side enters the lower spunbonded nonwoven fabric SW or reaches the opposite side through the spunbonded nonwoven fabric SW. It is presumed that a closed state is formed. The action promotes integration of the two layers.

The water entanglement device 5 is also provided with a transport wire 55. The transport wire 55 receives the preliminary laminate PWeb downstream of the pre-processing units 28 and 30 and transports the preliminary laminate PWeb into the hydroentanglement device 5. The transport wire 55 is disposed so as to pass between the water jet head 51 and the suction device 52 of the hydroentanglement device 5 from the upstream side to the downstream side.
Therefore, the preliminary laminate PWeb conveyed on the conveying wire 55 is subjected to more hydroentanglement processing toward the downstream in the conveying direction TD, and the upper pulp fiber when exiting the hydroentanglement device 5 A sufficient entanglement treatment between the web PFW layer and the lower spunbonded nonwoven fabric SW layer is realized.
The nonwoven fabric immediately after leaving the hydroentanglement device 5 is in a wet state, and the connection between the pulp fibers and the like is not sufficiently established.

Therefore, as shown in FIG. 3, on the downstream side of the hydroentanglement device 5, water remaining on the web is suctioned and removed, followed by drying, and a suction device 6 and a drying device for completing the production of the nonwoven fabric wiper WP. Apparatus 7 is deployed. As described above, when the dewatering and drying are performed by the suction device 6 and the drying device 7 in the subsequent stage of the production of the nonwoven fabric wiper WP, the nonwoven fabric can be efficiently produced, and without applying a large external pressure to the produced non-woven fabric after hydroentanglement. Since a dry nonwoven fabric can be manufactured, it can be finished into a bulky product.
The suction device 6 dehydrates the nonwoven fabric after the hydroentanglement by, for example, a vacuum method. The drying device 7 preferably employs a non-compression dryer, preferably an air-through dryer. In FIG. 3, the rotatable dryer main body 71 of the air-through dryer is a cylindrical body, and a large number of through holes are provided in the peripheral surface thereof. It is preferable to adopt a configuration in which air is sucked toward the side.
The composite nonwoven fabric wiper WP continuously manufactured in this manner is wound around the roll 81 of the winding device 8 to complete a series of steps.

According to the nonwoven fabric wiper manufacturing apparatus 1 described above, the composite nonwoven fabric wiper according to the present invention, which is excellent in appearance and processability and has sufficient liquid absorbing properties, can be efficiently manufactured.
In the manufacturing apparatus shown in FIG. 3, a pulp fiber web is obtained by using an air-laid apparatus 2 to defibrate pulp fibers and gradually laminate them. The pulp fiber web can be manufactured by applying the wet papermaking sheet manufacturing method. However, when the pulp fiber web is manufactured by the dry method using the air laid apparatus 2 as described above, the manufacturing equipment is simplified, and the pulp fiber web can be manufactured more efficiently. The composite nonwoven fabric wiper according to the invention can be manufactured.

  The description of the embodiment is finished above, but it is needless to say that the present invention is not limited to the above-described embodiment, and can be variously modified and implemented without departing from the gist thereof.

DESCRIPTION OF SYMBOLS 1 Nonwoven fabric wiper manufacturing device 2 Airlaid device 3 Spunbonded nonwoven fabric supply device 4 Suction device 5 Water entanglement device 6 Suction device 7 Drying device 8 Winding device 21 Fibrillator 22 Duct 23 Airlaid hopper 24 Stacking position 28 Nipping roller 30 Prewetting device 31 Spray nozzle 32 Suction device 41 Suction device main body 42 Suction part 43 Transport wire 51 Water jet head 52 Suction device 55 Transport wire SW Spunbond nonwoven fabric MP Fusion point PF Pulp fiber PFW Pulp fiber web PWeb Preliminary laminate (laminated web)
WP Composite nonwoven wiper TD Transport direction

Claims (5)

A composite nonwoven wiper in which a pulp fiber web is laminated and integrated on a spunbond nonwoven,
The spunbonded nonwoven fabric is formed including a plurality of fusion points connecting the spun resin fibers, one area of the fusion points is 0.10 to 0.50 mm ² , and The area ratio of the fusion point is set to 7 to 20%,
The basis weight of the pulp fiber web is 30~70g / ^{m 2,} composite nonwoven fabric wiper, characterized in that. Composite nonwoven wiper of claim 1, wherein the number of fusion Chakuten is 10 to 150 pieces / cm ^2, it is characterized.   The composite nonwoven fabric wiper according to claim 1 or 2, wherein a fiber diameter of a fiber constituting the spunbonded nonwoven fabric is 0.6 to 5.6 decitex.   4. The spunbonded nonwoven fabric / pulp fiber web, which is a weight composition ratio of the spunbonded nonwoven fabric and the pulp fiber web, is 40/50 to 10/90 (wt%). A composite-type nonwoven fabric wiper according to the above-described item. A method for producing the composite nonwoven fabric wiper according to any one of claims 1 to 4,
At least including a hydroentanglement step of hydroentanglement processing the spunbond nonwoven fabric and the pulp fiber web,
The hole diameter φ of the water jet nozzle that injects the water jet in the water entanglement step is 0.06 to 0.15 mm, and the interval between the water jet nozzles is 0.4 to 1.0 mm. A method for producing a composite nonwoven wiper.

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