JP2005169096A - Three-dimensional nonwoven fabric and dust mop - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a three-dimensional nonwoven fabric having excellent dust trapping property, dust holding property, oil absorbability and water absorbability, and a dust mop composed of the three-dimensional nonwoven fabric. <P>SOLUTION: This three-dimensional nonwoven fabric X is formed by attaching a large number of cord-shaped wiping members 20 made of nonwoven fabric, to a foundation cloth 10. The cord-shaped wiping member 20 is formed by linearly cutting the edge of approximately rectangular nonwoven fabric material cloth to obtain a strip scrap material with its width varied in a longitudinal direction, and arranging one or more strip scrap materials to apply single twist working thereto. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a three-dimensional non-woven fabric in which a large number of non-woven string-like wiping materials are arranged on a base fabric, and a dust mop composed of the three-dimensional non-woven fabric.

  An example of a dust mop composed of this type of three-dimensional nonwoven fabric is disclosed in Patent Document 1. As shown in FIGS. 9 and 10 of the present application, the dust mop disclosed in this document has a basic structure in which a large number of nonwoven fabric string-like wipes b are arranged and fixed on one side of a nonwoven fabric base fabric a. ing. As the string-like wiping material b, an appropriate number of rope-shaped non-woven fabrics are formed in a rope-knitted shape and cut into pieces of a predetermined length. A large number of such string-like wiping materials b are arranged on a strip-shaped nonwoven fabric intermediate material c, and an intermediate portion of each string-like wiping material b is fixed to the intermediate material c by, for example, heat welding. Thus, an intermediate material c carrying a large number of string-like wiping materials b in parallel is further fixed to one side of the base fabric a. Such a dust mop in which most of the constituent members are formed of non-woven fabric is not expected to be used repeatedly, and is eventually discarded as a disposable cotton. Unlike a dust mop provided with a string wiping material, it is desired to be lightweight and low cost while having high performance.

Japanese Utility Model Publication No. 7-37024

  Such a dust mop is attached to the mop head so that the surface on which a large number of wiping materials b are provided faces downward, and is used for cleaning work such as dust removal on the floor or wiping off moisture. With respect to dust, such a dust mop is superior in dust trapping ability and dust holding ability to determine superiority or inferiority in performance.

  Since the dust mop disclosed in Patent Document 1 has a structure in which each string-like wiping material b is attached so as to follow the base cloth a, as can be seen from FIG. 10 of the present application, There is a problem like this.

  That is, even when the dust mop is pressed against the floor or the like, each string-like wiping material b looks like sleeping along the base cloth a, and the contact portion with respect to the floor or the like is limited to the lower surface portion of each string-like wiping material b. Therefore, the dust trapping action is not so high. Along with this, the captured dust is difficult to be sent between the wiping material b and the base cloth a, and therefore there is a difficulty in dust retention. For this reason, the captured dust is released again, and an inefficient situation such as soiling the floor or the like may occur.

  Moreover, the arrangement | positioning pitch about the longitudinal direction of the wiping material with respect to a base fabric respond | corresponds with the longitudinal dimension of a wiping material, As a result, the arrangement | positioning density of the wiping material with respect to a base fabric cannot be raised so much. This is also a factor that makes it impossible to improve dust trapping ability and dust holding ability.

  The present invention has been conceived under the circumstances described above, and provides a three-dimensional non-woven fabric excellent in dust trapping property, dust retention, oil absorption and water absorption, and a dust mop composed of this three-dimensional non-woven fabric. The task is to do.

  In order to solve the above problems, the present invention employs the following technical means.

  According to the first aspect of the present invention, a three-dimensional nonwoven fabric is provided. This three-dimensional non-woven fabric is a three-dimensional non-woven fabric formed by attaching a large number of non-woven fabric string-like wipes to a base fabric, and the string-like wipes are obtained by cutting the edges of a substantially rectangular non-woven fabric material in a straight line, It is characterized in that one or a plurality of strip-shaped scrap materials whose width changes in the longitudinal direction are aligned and processed by one-twisting. Suitably, the width | variety of a strip | belt-shaped waste material is fluctuate | varied in the range of 10-40 mm, and a single twist process is performed in the ratio of 20-30 times / 1000mm.

  The string-like wiping material in the three-dimensional nonwoven fabric having such a configuration is a state in which a straight portion and a twisted portion are mixed when viewed from the side. Moreover, the front-end | tip part of this string-like wiping material is a substantially spiral shape including a folding part, and is the state in which the united part and the opening part were mixed. Therefore, since this string-like wiping material can come into contact with an object to be cleaned such as a floor in various aspects in contact angle, contact area, contact stress, and the like, the three-dimensional nonwoven fabric has a dust trapping property, and Excellent dust retention.

  In this solid nonwoven fabric, a nonwoven fabric is used as a string-like wiping material. This nonwoven fabric has excellent oil absorption and water absorption due to the capillary action in its microstructure. The oil-absorbing performance and water-absorbing performance can be further enhanced by appropriately selecting the fiber material constituting the nonwoven fabric. In addition, as the string-like wiping material, it is preferable to use what is generated as an end material (scrap material) when manufacturing industrial materials, sanitary goods (such as diapers), and the like. That is, a non-woven fabric that is cut to an appropriate size and is preferable as a string-like wiping material can be obtained at a low cost. Therefore, it is possible to reduce the production cost of the three-dimensional nonwoven fabric by using such end materials.

  Preferably, the base fabric is formed with a plurality of rows of a plurality of string-through holes opened at a predetermined pitch, and in each row of the string-through holes, each adjacent two string-through holes include a base fabric. Both ends of the string-like wiping material having an intermediate portion located on the back side and having a predetermined length are passed from the back side of the base fabric to the front side, and both ends of the cord-like wiping material are on the surface side of the base fabric In FIG.

  In a preferred embodiment, in each row of the threading holes formed in the base fabric, the nth and n + 1th (n is a positive integer; the same shall apply hereinafter) threading holes are provided on the back side of the base fabric. Both ends of the n-th string-like wiping material having an intermediate portion and a predetermined length are n + 1-th string together with one end of the (n-1) -th string-like wiping material for the n-th string passage hole. For the through hole, together with the other end of the (n + 1) th string-like wiping material, the end of each string-like wiping material that is passed from the back side of the base fabric to the front side and drawn to the surface side of the base fabric is the base fabric. Is in a standing state.

  In such a three-dimensional nonwoven fabric, the ends of the string-like wiping material extending to the surface side of the base fabric are in an upright state. Therefore, when wiping off the dirt (dust) in the soiled area with this three-dimensional nonwoven fabric, the three-dimensional nonwoven fabric and the dirt site are moved relative to each other so that the wiping material swings in the direction of relative movement, so that many parts of the wiping material are uniformly soiled. The site can be contacted. Therefore, this solid nonwoven fabric can efficiently capture dirt (dust) at the dirt site. In addition, each wiping material has a narrowed diameter in the string-through hole of the base fabric, but the portion exposed on the surface side of the base fabric is expanded by the restoring elasticity of the nonwoven fabric. As for this wiping material, the exposed part with respect to a base fabric has stood up, and the arrangement density can be selected appropriately. Therefore, an appropriate dust holding space can be formed near the surface of the base fabric by selecting an appropriate arrangement density. Therefore, this solid nonwoven fabric is also excellent in dust retention, and can prevent the captured dust from detaching as much as possible.

  In a preferred embodiment, the string-like wiping material is a nonwoven fabric made of polypropylene fiber, a nonwoven fabric made of polyester fiber, a nonwoven fabric made of polypropylene fiber and polyester fiber, a nonwoven fabric made of rayon fiber, or a polyester fiber, rayon fiber, and polyethylene fiber. In a predetermined ratio. Of course, the string-like wiping material in the present invention is not limited to the above.

  Such a string-like wiping material can further enhance the oil-absorbing or water-absorbing performance due to the capillary action in the microstructure. Non-woven fabric made of polypropylene fiber, non-woven fabric made of polyester fiber, and non-woven fabric made of polypropylene fiber and polyester fiber are suitable for enhancing the oil absorption of the string-like wiping material, and the non-woven fabric made of rayon fiber and the polyester fiber A nonwoven fabric containing rayon fibers and polyethylene fibers in a predetermined ratio is suitable for increasing the water absorption of the string-like wiping material.

  In a preferred embodiment, the base fabric has a cotton layer made of synthetic resin fibers on the front side and the back side of a plain weave fabric made of synthetic resin tape yarn, and the cotton layer and the plain weave fabric are bonded by needling. Has a structure.

  Since the base fabric in such a form has a multilayer structure, it itself has a relatively large thickness. Further, since the plain woven fabric is included as a core material, it is strong against pulling in the weft and warp directions, and a sufficient holding force for the string-like wiping material passing through the string-through hole can be obtained. Therefore, the string-like wiping material can be held without inadvertently coming off the base fabric without using any other fixing means such as adhesion. Moreover, the standing state of the base part of the site | part extended from the base fabric of a string-like wiping material is maintained, and, thereby, appropriate dust retention property is ensured.

  In a preferred embodiment, the synthetic resin is a polyester resin. Since the polyester resin has a relatively high strength, the dimensional stability of the base fabric and thus the three-dimensional nonwoven fabric is further improved. Therefore, in this three-dimensional nonwoven fabric, it can suppress that an unevenness | corrugation generate | occur | produces by deform | transforming.

  In a preferred embodiment, a dust adsorbent is applied to the surface side of the base fabric. In this way, the dust trapping property is further enhanced.

  In another preferred embodiment, the string-like wiping material is lined with a monofilament made of synthetic resin. In this way, it is possible to expect a brushing effect, and the overall performance as a three-dimensional nonwoven fabric is further enhanced by removing dust from the dirt removal target and subsequent dust capture.

  In yet another preferred embodiment, the string-like wiping material is lined with an electret-processed non-woven fabric strip. In this way, it is expected that dust capture performance is improved by electrostatic adsorption.

  In still another preferred embodiment, the string-like wiping material is lined with a non-woven fabric band coated with an adsorbent. This can also be expected to improve dust capture performance.

  According to a second aspect of the present invention, a dust mop is provided. This dust mop is for mounting on a mop head, and is characterized by being constituted by a three-dimensional nonwoven fabric provided by the first aspect of the present invention. This dust mop has the same effect as the three-dimensional nonwoven fabric provided by the first aspect of the present invention.

  In a preferred embodiment, the base fabric has a width corresponding to the width in the short direction of the mop head, and an auxiliary fabric having a predetermined width for mounting on the mop head is provided on both side edges of the base fabric. Are connected.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the drawings.

  Hereinafter, a preferred embodiment of the present invention will be specifically described with reference to the drawings.

  1 and 2 show an embodiment of a three-dimensional nonwoven fabric X according to the present invention. The three-dimensional nonwoven fabric X has a configuration in which a large number of string-like wiping materials 20 made of a nonwoven fabric are held on the base fabric 10.

In the present embodiment, the base fabric 10 is formed of a high-strength composite fabric and has a three-layer structure including a core material 11 and cotton layers 12 and 13 laminated on the front and back surfaces of the core material 11. The base fabric 10 has a thickness of, for example, 1.5 to 4.0 mm, and a total basis weight of, for example, 150 to 350 g / cm ² . The core material 11 is a plain woven fabric made of tape yarn made of, for example, polypropylene (hereinafter referred to as “PP”), polyethylene terephthalate (hereinafter referred to as “PET”), or the like. The cotton layers 12 and 13 are layers composed of, for example, PET. In order to fix the cotton layers 12 and 13 to the core material 11, for example, needling is used. In the base fabric 10 having such a configuration, the plain woven fabric as the core material 11 has high tensile strength in the warp direction and the weft direction, so that a part of the string-like wiping material 20 is held in a penetrating manner as will be described later. Excellent performance. Of course, the material which forms the core material 11 and the cotton layers 12 and 13 is not limited to what was illustrated above, The thing of a suitable synthetic resin material can be selected.

The string-like wiping material 20 has a form in which a piece of tape-shaped nonwoven fabric is twisted and cut at a certain length, each of which is held by the base fabric 10 as shown in FIGS. ing. That is, a plurality of string passage holes 15 are formed in the base fabric 10 so as to be aligned in the arrow AB direction at a predetermined pitch, and a plurality of rows of such string passage holes 15 are formed in the arrow CD direction. The formation pitch P ₁ (see FIG. 2) of the string passing holes 15 is, for example, 10 to 50/10 cm, and the inter-row pitch P ₂ (see FIG. 1) is, for example, 5 to 35/10 cm. In each row of string-through holes 15, two adjacent string-through holes 15 have both end portions 20 a, 20 b of the string-like wiping material 20 having an intermediate portion located on the back surface side of the base fabric 10 on the back surface of the base fabric 10. It is passed from the side to the surface side. The end portions 20 a and 20 b of the adjacent string-like wiping material 20 are passed through the same string-through hole 15 at the same time. As a result, the two end portions 20a, 20b of the string-like wiping material 20 located adjacent to each other are drawn out from the string passage holes 15 of the base fabric 10 in an upright manner. The length H (see FIG. 2) of the portion drawn from the base cloth 10 of each string-like wiping material 20 is set to about 5 to 20 mm, for example.

The nonwoven fabric constituting the string-like wiping material 20 has excellent water absorption and oil absorption properties due to the capillary action in its microstructure, and its performance can be selected by appropriately selecting the fiber material constituting the nonwoven fabric. Can be further enhanced. Examples of the fiber material constituting the nonwoven fabric include a nonwoven fabric made of polypropylene fiber, a nonwoven fabric made of polyester fiber, and a nonwoven fabric made of polypropylene fiber and polyester fiber for the purpose of further improving oil absorption, Examples thereof include a nonwoven fabric made of rayon and a nonwoven fabric containing polyester fiber, rayon fiber, and polyethylene fiber in a predetermined weight ratio (for example, polyester: rayon: polyethylene = 50: 40: 10). These nonwoven fabrics are suitably about ²⁰ to 120 g / m2. Furthermore, as shown in FIG. 3, it is preferable that the strip-shaped non-woven fabric 30 </ b> A obtained by cutting the edge of the material cloth 30 in a straight line is used as the tape-shaped nonwoven fabric. Since the edge of the material cloth 30 usually meanders in a wave shape, the width of the belt-like scrap material 30A changes as shown in FIG. 3B. The width of such a strip-like waste material 30A varies within a range of 10 to 40 mm, for example. In addition, the edge of the material cloth 30 has a limited use and is usually discarded, so that it can be obtained at a low cost. Therefore, the manufacturing cost of the three-dimensional nonwoven fabric X can be further reduced by utilizing the edge of the material cloth 30. Non-woven fabric single twisting (treatment such as pulling and twisting) is appropriately 20 to 30 times / 1000 mm, and a single tape-shaped non-woven fabric may be single twisted, and if necessary, multiple pieces These tape-shaped non-woven fabrics may be aligned and subjected to a single twist process. A tape-like nonwoven fabric is stretched by applying a single twist process, and the tensile strength is improved. Thereby, it can be made a more preferable state as solid nonwoven fabric X.

  FIG. 4 shows an example of a technique for holding the string-like wiping material 20 on the base fabric 10 as described above. That is, the base fabric 10 is tufted by a sewing tuft method using the continuous string-like wiping material 20 that has been subjected to the single twist process, and the loop formed on the base fabric 10 is near the tip (see FIG. 4). Line). At this time, a string passage hole 15 is simultaneously formed in the base fabric 10, and the string-like wiping material 20 is passed through the string passage hole 15.

  The string-like wiping material 20 of the three-dimensional nonwoven fabric X is obtained by subjecting the strip-like scrap material 30A (see FIG. 3B) to a single twist process. For this reason, as for the string-like wiping material 20, seeing from a side surface, a linear part and a twist part will be mixed about a longitudinal direction. Also, the shape of the tip portion generally includes a folded portion and is substantially spiral, but there are cases where a unitary portion appears and a case where an open portion appears. As a result, each string-like wiping material 20 comes into contact with an object to be cleaned such as a floor in various manners in contact angle, contact area, contact stress, and the like depending on the part. Therefore, the three-dimensional nonwoven fabric X is excellent in the dust capturing ability and the dust retaining ability as a whole.

  In the three-dimensional nonwoven fabric X, a nonwoven fabric is used as the string-like wiping material 20. The nonwoven fabric has excellent water absorption and oil absorption due to the capillary action in its microstructure. Water-absorbing and oil-absorbing performance can be further enhanced by appropriately selecting the fiber material constituting the nonwoven fabric. Moreover, as the string-like wiping material 20, a strip-like scrap material 30A (end material) generated when manufacturing a material cloth 30 (industrial material, sanitary goods (such as diapers)) is used. That is, a non-woven fabric that is cut to an appropriate size and is suitable as the string-like wiping material 20 can be obtained at low cost. Therefore, the manufacturing cost of the three-dimensional nonwoven fabric X can be suppressed by using the strip-like waste material 30A.

  As clearly shown in FIG. 2, in the three-dimensional nonwoven fabric X, the string-like wiping material 20 exposed on the surface side of the base fabric 10 extends upright. Therefore, when removing dust using the three-dimensional nonwoven fabric X, the string-like wiping material 20 swings in accordance with the moving direction of the three-dimensional nonwoven fabric X, and many portions of the string-like wiping material 20 come into contact with the dust removal target part. X can efficiently capture the dust at the site, and is excellent in dust capturing ability.

  Since the base fabric 10 is formed of the high-strength composite fabric as described above, the string-like wiping material 20 that passes through each string passage hole 15 can be reliably held. Therefore, the string-like wiping material 20 can be fixed and held on the base fabric 10 without using a separate fixing means. Further, the string passage hole 15 does not inadvertently expand, and therefore, the upright state of the root portion of each string-like wiping material 20 is maintained.

  As described above, the portion of the string-like wiping material 20 passing through the string passage hole 15 is appropriately reduced in diameter, while the portion extending on the base fabric 10 is expanded by the restoring elasticity of the nonwoven fabric. . Accordingly, by selecting the arrangement density of the string-like wiping material 20, a dust holding space is appropriately formed near the root of each string-like wiping material 20. Thus, the three-dimensional nonwoven fabric X is also excellent in dust retention, and can prevent the captured dust from separating again as much as possible.

  Below, the cleaning tool which mounts the dust mop comprised including the three-dimensional nonwoven fabric X as an application example of the above-mentioned three-dimensional nonwoven fabric X is demonstrated.

5 and 6 show an example of a cleaning tool 50 that performs a cleaning operation by attaching a dust mop 60 that includes the three-dimensional nonwoven fabric X. FIG. The cleaning tool 50 includes a mop head 51, an operation handle rod 52, a cushion member 53, and a clamp 54. The mop head 51 is a part for mounting the dust mop 60, and is a plate-like member having a horizontally long rectangular shape in plan view. The operation handle 52 is a part for operating the mop head 51, and rotates about the first axis L ₁ in the longitudinal direction and the second axis L ₂ in the short direction with respect to the upper surface of the mop head 51. Connected as possible. The cushion member 53 is a part for providing cushioning between the mop head 51 and the dust mop 60 attached to the mop head 51, and is attached to the lower surface of the mop head 51. The clamp 54 is a part for fixing and holding the dust mop 60 to the mop head 51, and is provided on the upper surface of the mop head 51.

  7 and 8 show the dust mop 60. The dust mop 60 includes a mop portion 60A and an auxiliary cloth 60B, and generally has a width corresponding to the longitudinal direction dimension of the mop head 51 (see FIG. 5) and a width wider than the lateral direction dimension of the mop head 51. It is a rectangular member having.

The mop part 60 </ b> A is composed of a three-dimensional nonwoven fabric X. As the three-dimensional nonwoven fabric X applied to the dust mop 60, the formation pitch P ₁ (see FIG. 2) of the string through holes 15 is set to, for example, 13 to 18/10 cm, and the inter-row pitch P ₂ (see FIG. 1) is, for example, 6 What was set to ~ 12 / 10cm is suitable. Moreover, it is suitable to set the length H (refer FIG. 2) of the part pulled out from the base fabric 10 of each string-like wiping material 20 to about 10-20 mm, for example.

The auxiliary cloth 60B is connected to both sides of the mop portion 60A by overlock processing. As shown in FIG. 6, the upper surface of the mop head 51 is clamped by the clamp 54 when the dust mop 60 is attached to the mop head 51. It is a site | part pressed and held by. As the auxiliary cloth 60B, for example, a long fiber spunbond nonwoven fabric of about 100 g / m ^{2 made of} PP is used.

  The dust mop 60 having such a configuration has the mop portion 60A applied to the lower surface of the mop head 51 with the surface on which the string-like wiping material 20 appears facing down, and the auxiliary cloth 60B wraps around from the side edge of the mop head 51 to the upper surface. By pressing the auxiliary cloth 60 </ b> B with the clamp 54, the auxiliary cloth 60 </ b> B is attached to the mop head 51.

  As clearly shown in FIG. 8, in the mop portion 60 </ b> A configured by the three-dimensional nonwoven fabric X, the string-like wiping material 20 exposed on the surface side of the base fabric 10 extends in an upright manner. Therefore, when the floor or the like is cleaned with the mop head 51 mounted as described above, the string-like wiping material 20 swings in accordance with the moving direction of the mop head 51, and many parts of the string-like wiping material 20 are evenly distributed on the floor. The dust on the surface can be efficiently captured. Thus, the dust mop 60 is basically excellent in dust capturing ability. Moreover, if the nonwoven fabric containing a polypropylene fiber and a polyester fiber is applied as the string-like wiping material 20, the dust mop 60 is excellent in oil absorption and suitable for wiping off the oil content, and the string-like wiping material 20 is a nonwoven fabric containing rayon fibers. When applied, it has excellent water absorption and is suitable for wiping off moisture.

  Of course, the scope of the present invention is not limited to the above-described embodiments, and all modifications within the scope of the matters described in the claims are all included in the scope of the present invention.

The structure including the three-dimensional non-woven fabric X is not limited to the dust mop 60 used in a state of being fixedly held on the mop head 51 of the cleaning tool 50, and dirt (dust To remove dust, etc.) on the floor surface, etc., and on the floor surface to remove oil and water adhering to the soles and soles. It may be an oil-absorbing / water-absorbing mat having a configuration suitable for laying and using, or a dust wiping sheet having a configuration suitable for direct use by hand such as a rag. As the three-dimensional nonwoven fabric X applied to a dust mat or an oil-absorbing / water-absorbing mat, the formation pitch P ₁ (see FIG. 2) of the string passage holes 15 is set to 5 to 12/1 inch, for example, and the pitch P ₂ between rows (FIG. 1). For example, it is preferable that the reference is set to 3 to 8/1 inch. Moreover, it is suitable to set the length H (refer FIG. 2) of the part pulled out from the base fabric 10 of each string-like wiping material 20 to about 7-17 mm, for example. On the other hand, as the three-dimensional nonwoven fabric X applied to the dust wiping sheet, the same one as that applied to the dust mop 60 is suitable.

  The string-shaped wiping material 20 is not only a single-twisting process of a tape-shaped nonwoven fabric, but also a single-strand process of one or more monofilaments having a flat or circular cross section, such as nylon, polyester, PP, etc. There may be. If it does in this way, the dust removal effect from the target object by brushing can be anticipated, and the comprehensive performance as the three-dimensional nonwoven fabric X is further improved.

  Furthermore, the string-like wiping material 20 may be formed using a non-woven fabric subjected to electret processing, or may be subjected to a single twist processing along a non-woven fabric strip subjected to electret processing. Thereby, the improvement of the dust capture property by electrostatic adsorption | suction can be anticipated.

  In addition, for example, an oil-based dust adsorbent can be applied to the upper surface of the base fabric 10, and the string-like wiping material 20 can also be used soaked with the dust adsorbent. Further, a strip-like nonwoven fabric impregnated with a dust adsorbent may be twisted along a normal nonwoven fabric.

It is a back view of an example of the three-dimensional nonwoven fabric which concerns on embodiment of this invention. It is sectional drawing which follows the II-II line of FIG. It is explanatory drawing of a strip-shaped waste material. It is explanatory drawing of the example of a method of attaching a string-like wiping material to a base fabric. It is a principal part perspective view of an example of the cleaning tool suitable for mounting | wearing with the dust mop comprised including the solid nonwoven fabric shown in FIG. It is explanatory drawing of the state which mounted | wore the cleaning tool shown in FIG. 5 with the dust mop. It is a reverse view of an example of the dust mop comprised including the solid nonwoven fabric shown in FIG. It is sectional drawing which follows the VIII-VIII line of FIG. It is explanatory drawing of a prior art example. It is explanatory drawing of a prior art example.

Explanation of symbols

X Three-dimensional non-woven fabric 10 Base fabric 11 Core material (plain fabric)
12 Cotton layer 13 Cotton layer 20 String-like wiping material 30 Material cloth 30A Strip-like waste material 51 Mop head 60 Dust mop (three-dimensional nonwoven fabric)
60A Mop 60B Auxiliary cloth

Claims (12)

It is a three-dimensional nonwoven fabric in which a large number of nonwoven fabric string-like wipes are attached to the base fabric,
The string-like wiping material is obtained by cutting the edge of a substantially rectangular nonwoven fabric material in a straight line, and one or a plurality of band-like scrap materials whose width changes in the longitudinal direction are aligned and subjected to a single twist process. A three-dimensional nonwoven fabric characterized by being used. In the base fabric, a plurality of rows of a plurality of string passage holes opened at a predetermined pitch are formed,
In each row of the stringing holes, each adjacent two stringing holes have an intermediate portion located on the back side of the base fabric, and both ends of the string-like wiping material having a predetermined length are on the back side of the base fabric. The three-dimensional nonwoven fabric according to claim 1, which is passed from the side to the surface side, and the both end portions of the string-like wiping material are in an upright state on the surface side of the base fabric. In the base fabric, a plurality of rows of a plurality of string passage holes opened at a predetermined pitch are formed,
In each row of the stringing holes, the nth and n + 1th (n is a positive integer; the same shall apply hereinafter) stringing holes have an intermediate portion located on the back side of the base fabric and have a predetermined length. Both ends of the n-th string-like wiping material are connected to one end of the (n-1) -th string-like wiping material for the n-th string-through hole, and the (n + 1) -th string-like wiping material for the (n + 1) -th string passage hole. The end of each string-like wiping material that is passed from the back surface side of the base fabric to the front surface side together with the other end portion and pulled out to the front surface side of the base fabric is in an upright state with respect to the base fabric. The three-dimensional nonwoven fabric according to 1.   The string-like wiping material is a nonwoven fabric made of polypropylene fiber, a nonwoven fabric made of polyester fiber, a nonwoven fabric made of polypropylene fiber and polyester fiber, a nonwoven fabric made of rayon fiber, or a nonwoven fabric containing polyester fiber, rayon fiber, and polyethylene fiber in a predetermined ratio The three-dimensional nonwoven fabric of Claim 1 thru | or 3 currently formed by these.   The base fabric has a structure in which cotton layers made of synthetic resin fibers are arranged on the front and back sides of a plain weave fabric made of synthetic resin tape yarn, and the cotton layer and the plain weave fabric are joined by needling. Item 5. The three-dimensional nonwoven fabric according to any one of Items 1 to 4.   The three-dimensional nonwoven fabric according to claim 5, wherein the synthetic resin is a polyester resin.   The three-dimensional nonwoven fabric according to any one of claims 1 to 6, wherein a dust adsorbent is applied to a surface side of the base fabric.   The three-dimensional nonwoven fabric according to any one of claims 1 to 4, wherein the string-like wiping material is lined with a synthetic resin monofilament.   The three-dimensional nonwoven fabric according to any one of claims 1 to 4, wherein the string-like wiping material is lined with an electret-processed nonwoven fabric strip.   The three-dimensional nonwoven fabric according to any one of claims 1 to 4, wherein the string-like wiping material is lined with a nonwoven fabric strip coated with an adsorbent. A dust mop for mounting on a mop head,
A dust mop comprising the three-dimensional nonwoven fabric according to any one of claims 1 to 10.   The base fabric has a width corresponding to the width in the short direction of the mop head, and an auxiliary fabric having a predetermined width to be attached to the mop head is connected to both side edges of the base fabric. The dust mop according to claim 11.

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