JP4018690B2 - Cleaning articles using long fibers - Google Patents

Description

  The present invention relates to a cleaning article using long fibers. More specifically, the present invention relates to a cleaning article that has excellent ability to collect dust and the like and is suitable for being used as a disposable item.

  Conventionally, the sheet | seat formed with the fiber is used as a cleaning tool. Among them, in particular, disposable products using a nonwoven fabric that is attached to a cleaning tool such as a mop for cleaning are easy to use and are widely available on the market.

  In this type of cleaning sheet, the wiping area is made of a non-woven fabric, so that it is not possible to remove large dust. In addition, since the wiping area is relatively hard, if the surface to be cleaned, such as furniture or furniture, is soft or the surface to be cleaned is strongly wiped, the surface may be damaged. Further, since the wiping surface is flat, in the wiping operation, dirt is mainly attached to the peripheral part of the sheet, the central part of the sheet is difficult to get dirty, and the central part of the sheet is not used effectively.

Further, Patent Document 1 discloses a wiping tool in which long fibers and a heat-weldable sheet are joined with a heat-welding wire. If this wiping tool is used, it can clean without the fiber which comprises a wiping tool falling off easily. However, this wiping tool is difficult to collect relatively large garbage. Moreover, it cannot be used if only the wiping surface of the surface of the cleaning article becomes dirty during cleaning. That is, before the fibers inside the cleaning article become dirty, the fibers on the surface side become dirty first and become unusable.
JP-A-9-135798

An object of the present invention is to provide a cleaning article having a high dust collection effect.
It is a further object of the present invention to provide a cleaning article that can use the fibers constituting the cleaning article without waste.

  Another object of the present invention is to provide a cleaning article having a soft surface and a good appearance.

The object and advantage of the present invention is that a long fiber layer is stacked on one or both sides of a base sheet, and the base sheet and the long fiber layer are formed by a plurality of joining lines extending in a direction intersecting with the direction in which the long fibers extend. The end portion of the other joining line exists in the region sandwiched between the joining line and the joining line that are joined and spaced apart in the direction in which the long fibers extend, and the joining line around the wiping region The density is higher than the density of the bonding line at the center of the wiping area, and the individual length of the bonding line at the periphery of the wiping area is shorter than the individual length of the bonding line at the center of the wiping area. This is achieved by the cleaning article.

In the region sandwiched between the joining lines formed at intervals in the direction in which the long fibers of the cleaning article extend, the long fibers pressed against the base sheet by the end of the other joining lines; A relatively large solid waste can be captured between the long fibers that are not pressed. In addition, since fine dirt also enters the inside of the long fiber layer from between the long fibers pressed to the base sheet by the end of the other joining line and the non-pressed long fibers, the surface of the long fiber layer Not only the fibers but also the fibers located inside the long fiber layer exhibit the ability to catch dust and adhere dirt. Therefore, not only the fibers on the surface of the long fiber layer but also the fibers inside the layer can contribute to the removal of dirt, and the effect of removing dirt can be enhanced as a whole sheet. Furthermore, there is an advantage that the central portion of the wiping area becomes high and the peripheral portion of the wiping area becomes low so that the entire wiping area of the cleaning article can be effectively used for cleaning.

  In addition, since the long fiber layer appears on the surface, the sheet surface is soft, and even if the surface is soft or painted like furniture and furniture, the surface to be wiped is damaged. There is no such thing.

  In this cleaning article, in the region sandwiched between the joining lines formed at intervals in the direction in which the long fibers extend, the long fibers that are pressed onto the base sheet by the end portions of the other joining lines. And a gap in the sheet thickness direction is preferably generated between the long fibers that are not pressed. This gap portion makes it easier to capture relatively large solid waste.

  It is preferable that the base material sheet and the long fiber layer of the cleaning article of the present invention contain a thermoplastic resin, and a joining line is formed by heat fusion. In the heat welding operation, a joining line having a required shape can be easily obtained by a simple process.

  The joining line is preferably formed to be inclined with respect to the direction in which the long fibers extend. Further, in this case, it is preferable to use a cleaning article in which adjacent joining lines are inclined in opposite directions in a direction orthogonal to the direction in which the long fibers extend. A concave portion is formed on the surface of the long fiber layer at the portion where the bonding line is provided. However, when the bonding line is inclined, the concave portion is directed in multiple directions. Accordingly, it is possible to exert the effect of collecting dust by wiping in multiple directions.

  Furthermore, it is preferable that a plurality of joining lines are formed side by side with a certain interval in the direction in which the long fibers extend, and the end portions of the joining lines are formed in a straight line in the direction in which the long fibers extend. When the end portions of the joining line are formed in a straight line at intervals, a cleaning article that is visually attractive and excellent in appearance is obtained.

Moreover, it is preferable that the cleaning article of the present invention pressurizes the peripheral portion of the wiping area to increase the bulk of the central portion of the wiping area and reduce the bulk of the peripheral portion of the wiping area. In this case, the entire wiping area of the cleaning article can be effectively used for cleaning .

  As described above, since the fiber pocket is formed in the cleaning article of the present invention, relatively large solid waste can also be collected. Small dust and dust can also be collected in long fibers. Therefore, a cleaning article having a high collection effect can be obtained. Further, by taking dust into the pocket, it becomes possible to effectively utilize even the fibers inside the cleaning article, which has not been conventionally used.

  Furthermore, by making the volume of the peripheral part smaller than the central part of the cleaning article, the central part that has been difficult to be soiled can be effectively used.

  In addition, a clean cleaning article can be obtained by installing the joining lines at regular intervals and aligning the end portions of the joining lines in a straight line.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing an embodiment of the cleaning article of the present invention, and FIG. 2 is an enlarged cross-sectional view showing the structure of the edge of the cleaning article.

  In the cleaning article 1 of FIG. 1, the long fiber layer 3 extends in the Y direction (longitudinal direction) and is superimposed on both the front and back surfaces of the base sheet 2. The Y direction is the direction in which the long fibers 3 a constituting the long fiber layer 3 extend. Each long fiber 3a has a length over the entire length of the cleaning article 1 in the Y direction. And the some joint line 4 extended in the direction which cross | intersects the Y direction where the long fiber 3a is extended is provided. The base sheet 2 and the long fiber layer 3 are integrally joined by the joining line 4.

  The long fiber layer 3 is provided in a central region in the X direction (width direction) of the cleaning article 1, and on both sides in the X direction of the cleaning article 1, as shown in FIG. Auxiliary sheets 5 and 5 are laminated on both front and back surfaces of 2a. Therefore, both sides in the X direction of the long fiber layer 3 are sandwiched between the base sheet 2 and a part of the auxiliary sheet 5. The protruding portion 2a of the base sheet 2 and the auxiliary sheets 5 and 5 are joined to each other by an adhesive or heat fusion. In the region where the auxiliary sheet 5 overlaps with the long fiber layer 3, the base sheet 2, the long fiber layer 3 and the auxiliary sheet 5 are integrally bonded by the bonding line 4.

  As shown in FIG. 1, a portion where the long fiber layer 3 appears on both front and back surfaces of the cleaning article 1 between the auxiliary sheets 5 and 5 on both sides in the X direction is a wiping region 12. Moreover, the part in which the auxiliary sheet | seat 5 of the both sides of a X direction is provided becomes the attachment area | region 11 for attaching to the mop for cleaning (FIG. 8) etc. In addition, when it is not attached to a cleaning mop or the like and is used by being held by hand, the attachment region 11 may not be provided.

  3 is a partially enlarged plan view showing the arrangement of the joining lines 4 of the cleaning article 1 shown in FIG. 1, and FIG. 4 is a partial perspective view showing the part where the joining lines 4 of the cleaning article 1 shown in FIG. FIG.

  As shown in FIG. 3, the joining lines 4a, 4c, 4e, and 4g are arranged so as to form a row 14 with a constant interval (arrangement pitch P) in the Y direction. These joining lines are formed to be inclined with respect to both the X direction and the Y direction. Moreover, the inclination directions of the joint lines 4a, 4c, 4e, and 4g forming the row 14 in the Y direction are the same. Further, the bonding lines 4b, 4d, and 4f are arranged next to the bonding line column 14 in the X direction so as to form the bonding line column 15. The inclination directions of the joining lines 4b, 4d, and 4f forming the joining line column 15 are opposite to the inclination direction of the joining line of the adjacent column 14. The inclination directions of the joining lines 4 are opposite to each other for each row of joining lines adjacent in the X direction. In the example shown in FIG. 1, the lengths of the individual joining lines 4 are the same, and the arrangement pitch P in the Y direction of all the joining lines 4 is the same.

  As shown in FIG. 4, the long fiber layer 3 is composed of a large number of long fibers 3a extending in the Y direction. And as shown in FIG. 3 and FIG. 4, it is in the area | region 13 (part shown by the hatching of FIG. 3) pinched | interposed between the adjacent joining lines 4a and 4c at intervals in the direction where the long fiber layer 3 extends. The terminal portion 6b of the other joint line 4b (joint line forming the adjacent row 15) is present. In addition, the bonding lines 4 constituting the adjacent columns in the X direction, that is, the bonding line column 14 and the adjacent bonding line column 15 are slightly overlapped in the X direction (the overlapping amount is indicated by δ). Are arranged. As a result, the long fibers 3a extending in the Y direction are always bonded to the base sheet 2 by the bonding lines 4 and restrained at any point. That is, fibers longer than the arrangement pitch P in the Y direction of the joining lines 4 do not appear in the wiping area 12. Accordingly, the fibers can be prevented from coming off from the wiping sheet 1.

  Further, the end portions 6 of the plurality of joining lines 4 arranged in a line in the Y direction are located on a straight line extending in the Y direction. More specifically, the end portions 6a, 6c, and 6e of the joint lines 4a, 4c, and 4e are arranged in a straight line and are positioned on the virtual line L1. Similarly, the end portions 6b, 6d, 6f of the joining lines forming the adjacent row 15 are arranged in a straight line on the virtual line L2. The interval in the X direction between the virtual lines L1 and L2 is the overlap amount δ. Since the joining lines 4 are regularly arranged in this manner, the wiping area 12 has a beautiful appearance and a good appearance.

  As shown in FIG. 4, in the region (region 13 in FIG. 3) sandwiched between the joining lines 4a and 4c adjacent to each other in the Y direction in which the long fibers 3a extend, the long fibers 3a constituting the long fiber layer 3 have a slight swelling. It extends in the Y direction. In this region, the end portion 6b of the joint line 4b in the line 15 of the joint line adjacent in the X direction is located. Therefore, a gap (step 16 shown in FIG. 4) is formed in the sheet thickness direction between the long fibers 3a pressed by the end portion 6b and the long fibers 3a forming a bulge between the joining lines 4a and 4b. ) And a fiber pocket is formed in the gap.

  With such a configuration, when the surface to be cleaned is wiped off by the wiping area 12, relatively large dust can easily enter into the fiber pocket, so that a relatively large dust capturing effect is enhanced. In addition, fine dust and dust can easily enter between the long fibers 3a from the pocket, and dust and dust are held between the long fibers in the pocket, so that dust and dust are less likely to be dispersed around when wiping. . Moreover, since dirt enters through the pockets, the dirt also adheres to the inside of the long fiber layer 3 (fibers located near the base sheet 2). That is, the fibers that are soiled by the wiping operation reach not only the fibers on the surface of the cleaning article but also the fibers inside the layer. Therefore, many long fibers 3a constituting the long fiber layer 3 are involved in wiping off dust and dirt, and the amount of dirt absorbed in the entire wiping area 12 can be increased.

  In the cleaning article 1, since the long fiber layer 3 appears in the wiping area 12, the wiping area 12 constitutes a soft wiping area. Therefore, it can be cleaned without damaging a soft surface to be cleaned or a painted surface.

  Further, when the bonding line 4 is formed to be inclined with respect to both the X direction and the Y direction, the concave portion of the long fiber layer 3 formed at the portion of the bonding line 4 faces both the X direction and the Y direction. For this reason, the effect of scraping off the dirt on the surface to be cleaned can be enhanced by this recess. Further, since the pocket formed by the gap (step 16) also opens in both the X direction and the Y direction, dirt can enter the pocket from multiple directions.

  In particular, as shown in FIGS. 1, 3, and 4, if the inclination of the joining line 4 is reversed between rows adjacent to each other in the X direction, the direction of the recess formed by the joining line 4 and the gap The direction of the pocket due to (step 16) becomes multidirectional. Therefore, when wiping in multiple directions, it is possible to exhibit a supplementary effect of dust, dirt and dirt.

  Further, it is preferable that the long fiber layer 3 is provided on both the front and back surfaces of the base sheet 2 because the cleaning article can be used on both the front and back surfaces. However, the long fiber layer 3 may be provided only on one side of the base sheet 2.

  The base sheet 2 and the long fiber layer 3 preferably contain a thermoplastic resin. In this case, joining of the long fiber layer 3 and the base material sheet 2 can be thermally fused using heat treatment (heat embossing roll processing) or ultrasonic welding means. Moreover, in this method, the required number and the required form of the joining lines 4 can be easily formed.

  The base material sheet 2 and the auxiliary sheet 5 may be any material that can withstand use, such as a nonwoven fabric formed by a spunbond method or a spunlace method, a resin film, a cloth containing synthetic fibers, or the like. Can also be used.

The long fiber layer 3 is a bundle of thread-like fibers or strip-like fibers bundled in the same direction.
As the long fiber layer, for example, what is generally called tow is used. The long fiber layer is made of, for example, polyethylene, polypropylene, nylon, polyester, rayon, or the like. Among these, it is preferable to use a composite fiber of polyester, particularly polyester having a core and polyethylene having a sheath. Low melting point polypropylene can also be used.

  As the strip-like fibers, those obtained by separating a sheet-like material such as a nonwoven fabric or a film into strips having an extremely short width dimension and bundling the strip-like sheets can be used. Further, a non-woven fabric which is cut at a relatively narrow interval can be used as a bundle.

  5 (A), (B), (C), (D), (E), and (F) are partial plan views showing other examples of the bonding line pattern of the cleaning article according to another embodiment of the present invention. .

  As shown in FIG. 5A, all the joining lines 4 can be formed in a direction extending at a right angle with respect to the direction in which the long fibers extend (Y direction). As shown in FIG. 5B, all the bonding lines 4 are inclined and extend with respect to the extending direction (Y) of the long fibers, and all the bonding lines 4 are parallel and have the same inclination direction. Can be formed. As shown in FIG. 5C, all the joining lines are inclined and extend with respect to the direction in which the long fibers extend (Y direction), and the angle between the joining line 4h and the joining line 4i is a right angle. Can be formed.

  As shown in FIG. 5D, all the bonding lines extend at right angles to the direction (Y direction) in which the long fibers extend, and there are a plurality of bonding lines between the long bonding lines 4j and 4j crossing the wiping area. It can also be formed in a state in which the end of the short joining line 4k exists. In this case, a fiber pocket is formed at the end of the short joint line 4k. Moreover, as shown in FIG.5 (E), the long joining line 4m and the short joining line 4n can also be formed in the state inclined with respect to the direction (Y direction) where a long fiber is extended. Further, as shown in FIG. 5 (F), the weld line 4p and the weld line 4q each form two (or more) pairs, and between the joint lines 4p and 4p adjacent in the Y direction, The other two joining lines 4q and 4q may be provided with end portions.

  In addition, in this specification, “the end portion of another joining line is present in a region sandwiched between joining lines formed at intervals in the extending direction of the long fibers” 3, the virtual line L1 in which the end portions 6a, 6c, 6e... Of the joint lines 4a, 4c, 4e... Forming the row 14 in the Y direction are arranged, and the row 15 of the adjacent joint lines. , And the imaginary line L2 in which the end portions 6b, 6d, 6f... Of the joint lines 4b, 4d, 4f. Or, the end portions 6a, 6c, 6e,... And the end portions 6a, 6c, 6e,. To do. However, the end portions 6a, 6c, 6e,... And the end portions 6b, 6d, 6f,... In the adjacent row 15 may be slightly separated in the X direction. In this case, an interval is formed between the end portions 6a, 6c, 6e,... In the row 14 and the end portions 6b, 6d, 6f,. Since the long distance is not restrained in the Y direction, it is preferable to provide another short joining line in order to press the long fibers extending in the interval portion at a predetermined interval. With such a configuration, a fiber pocket can be formed between the bonding line and the bonding line.

  6A is a perspective view of another embodiment of the cleaning article of the present invention, and FIG. 6B is a cross-sectional view taken along line BB of FIG. 6A.

  In the cleaning article 1 in FIG. 6A, the long fiber layers 3 are provided on both the front and back surfaces of the base sheet 2. A portion where the long fiber layer 3 appears is a wiping area 12. In the central portion 12a of the wiping area 12 (see FIG. 6B), the density of the bonding lines 4 arranged is low, and the individual lengths of the bonding lines are also long. On the other hand, in the peripheral part 12b of the wiping area | region 12, the density of the joining line 4r is high, and each length of the joining line 4r is short. When a joining line is formed in such a pattern, the bulk of the peripheral portion 12b is smaller than the bulk of the central portion 12a of the wiping area 12 as shown in the cross-sectional view of FIG. When the wiping operation for cleaning is performed in this state, dirt easily adheres not only to the peripheral portion 12b but also to the central portion 12a. In particular, when wiping with a flat tool such as a mop for cleaning, there is a problem that dirt is attached only to the peripheral portion 12b of the wiping area 12, and the fibers in the central portion 12a cannot be effectively used for wiping. Disappear.

FIG. 7 is a plan view of another embodiment of the cleaning article of the present invention.
In the example shown in FIG. 7, a plurality of joining lines 4 are formed in the wiping area 12 in the same manner as described above, but a fine concave portion is formed by applying pressure to the periphery of the wiping area 12 with a pressure embossing roll or the like. The bulk is reduced by forming under pressure. Therefore, the same effect as the cleaning article shown in FIG. 6 can be obtained. In this case, since the peripheral part is pressurized only by pressure, the fibers are temporarily fixed. Therefore, when wiping is repeated, the bulk that has been lowered in the temporarily fixed state at the peripheral portion is restored. Therefore, when the central portion becomes dirty after cleaning for a while, the bulk of the peripheral portion returns to its original state, and the peripheral portion that has been difficult to become dirty can be effectively used for wiping.

FIG. 8 is an example of a usage pattern of the cleaning article of the present invention.
As shown in FIG. 8, the cleaning article 1 can be used by being attached to a cleaning mop 20. The cleaning mop 20 has a handle 22 attached to a plate 21. In the cleaning article 1 of the present invention, the wiping area 12 is installed on the opposite surface of the object to be cleaned such as the floor, the attachment areas 11 at both ends of the cleaning article 1 are wound up on the upper surface of the plate 21, and the holding clip 23. Held by. Further, when the cleaning article 1 is used by being attached to the cleaning article 20 as shown in FIG. 8, a plurality of parts are provided in a portion sandwiched between the holding clips 23 in the attachment area 11 of the cleaning article so as to be easily sandwiched between the holding clips 23. It is preferable to make a small cut or soften by embossing.

  However, the use of the cleaning article of the present invention is not limited to the case where it is used by being attached to a cleaning mop. For example, the cleaning article can be used while being held by hand, or attached to a handy mop.

  The cleaning article of the present invention preferably contains an oil agent in order to easily adsorb dust or the like. Examples of the oil agent include mineral oil such as paraffin, synthetic oil such as polyolefin, silicone oil, and surfactant. In addition to the solid oils described above, the cleaning article in the present invention can contain substances such as deodorants, moisturizers, and antibacterial agents.

The perspective view which shows an example of the article | item for cleaning of this invention, The expanded sectional view of the II-II line of the article for cleaning shown in FIG. The enlarged plan view which shows the arrangement | sequence of the joining line of the articles | goods for cleaning of this invention, The expansion perspective view which shows the pocket formation part of the article for cleaning of the present invention, (A), (B), (C), (D), (E), and (F) are plan views showing examples of patterns of joint lines of the cleaning article of the present invention, (A) is a perspective view of another embodiment of the cleaning article of the present invention, (B) is a sectional view taken along line BB of (A), The top view of other embodiment of the article for cleaning of the present invention, The figure which shows an example of the usage pattern of the article | item for cleaning of this invention,

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cleaning article 2 Base sheet 3 Long fiber layer 3a Long fiber 4 Joining line 5 Auxiliary sheet 6 Terminal part 11 Attachment area 12 Wiping area 13 Area | region 12a pinched | interposed with a joining line and a joining line 12b Peripheral part 14 Row 15 Row 16 steps (gap)
20 Cleaning mop 23 Holding clip P Interval between adjacent joining lines (pitch)
Y Long fiber extending direction δ Overlapping amount L Virtual line

Claims (8)

A long fiber layer is stacked on one or both sides of a base sheet, and the base sheet and the long fiber layer are joined by a plurality of joining lines extending in a direction intersecting with the extending direction of the long fiber, and the extending direction of the long fiber In the region sandwiched between the joining lines formed with a gap between them , the end of the other joining line exists ,
The density of the joining line in the periphery of the wiping area is higher than the density of the joining line in the center of the wiping area, and the individual length of the joining line in the periphery of the wiping area is equal to that Articles for cleaning characterized in that they are shorter than the individual lengths .   In the region sandwiched between the joining lines formed at intervals in the direction in which the long fibers extend, the long fibers that are pressed against the base sheet by the end portions of the other joining lines are not pressed. The cleaning article according to claim 1, wherein a gap is formed between the long fibers.   The cleaning article according to claim 1 or 2, wherein the base sheet and the long fiber layer contain a thermoplastic resin, and a joining line is formed by heat fusion.   The cleaning article according to claim 1, 2 or 3, wherein the joining line is inclined with respect to the direction in which the long fibers extend.   The cleaning article according to claim 4, wherein adjacent joining lines in a direction orthogonal to the direction in which the long fibers extend are inclined in directions opposite to each other.   The cleaning line according to claim 4 or 5, wherein the plurality of bonding lines are formed side by side in the direction in which the long fibers extend, and the end portions of the bonding lines are arranged in a straight line in the direction in which the long fibers extend. Goods.   The cleaning article according to claim 1, 2, 3, 4, 5 or 6, wherein the peripheral portion of the wiping area is pressurized so that the bulk of the peripheral portion is smaller than the bulk of the central portion. The cleaning article according to claim 1, 2, 3, 4, 5, 6 or 7 , comprising an oil agent.

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