JP6195863B2 - Manufacturing method of cleaning tool and manufacturing method of cleaning sheet - Google Patents

Description

The present invention relates to a method for manufacturing a cleaning tool and a method for manufacturing a cleaning sheet for cleaning an object to be cleaned.

  Japanese Patent Application Laid-Open No. 2008-006260 describes a cleaning article including a fiber layer and a handle insertion portion forming sheet. This cleaning article is used by being attached to a handle.

JP 2008-006260 A

The cleaning surface of the cleaning article described in JP 2008-006260 A was formed by a fiber layer. In this type of cleaning article, when the cleaning operation is completed, the user may release the cleaning article from the object to be cleaned by the action of twisting the wrist. With the operation of twisting the user's wrist, there is a risk that the end portion of the cleaning surface of the cleaning article winds up dust or the like around it.
Then, in view of the above, an object of the present invention is to provide a cleaning tool manufacturing method and a cleaning sheet manufacturing method having a high cleaning effect.

In order to solve the above-described problem, according to a preferred embodiment of the method for manufacturing a cleaning tool according to the present invention, in the method for manufacturing a cleaning tool having a cleaning sheet and a holder for holding the cleaning sheet, the cleaning sheet includes: And a first fiber assembly that is bonded to the base and has a higher elastic modulus of elasticity than the elastic modulus of the base, and is defined by the direction in which the holder is inserted into the cleaning sheet. And a longitudinal cross direction defined by a direction intersecting the longitudinal direction.
Then, by applying a predetermined tension to the first fiber assembly, the step of extending at least a part of the fibers constituting the first fiber assembly, and the first fiber assembly are extended. In this state, the step of joining the first fiber assembly and the base portion to which a predetermined tension is applied , and cutting the base portion and the first fiber assembly in a predetermined region. The step of releasing the first fiber assembly from the tension, and the region protruding from the first fiber assembly in the longitudinal crossing direction at the base by contracting the fiber released from the tension. Forming a protruding region .
Thereby, when the user grips the holder and returns the wrist during the cleaning operation, the end region of the first fiber assembly is removed from the cleaning target in a state where the protruding region is in contact with the cleaning target. It is configured to be separable .

  According to the further form of the manufacturing method of the cleaning tool which concerns on this invention, the insertion part which inserts the holding | maintenance part of the said holder is provided in the said base.

  According to the further form of the manufacturing method of the cleaning tool which concerns on this invention, the said base is formed of the 1st sheet | seat body.

According to the further form of the manufacturing method of the cleaning tool which concerns on this invention, it has a 2nd sheet | seat body overlapped with the said 1st sheet | seat body, The said insertion part has the said 1st sheet | seat body, and the said 1st sheet | seat body . Between the two sheet bodies .

  According to the further form of the manufacturing method of the cleaning tool which concerns on this invention, while the said insertion part contact | abuts the predetermined surfaces in a said 1st sheet body, it forms a joining sheet area | region, In the said joining sheet area | region It is formed by joining the predetermined surfaces.

According to the further form of the manufacturing method of the cleaning tool which concerns on this invention, it has a 3rd sheet body piled up on a said 1st sheet body, and a 4th sheet body piled up on the said 3rd sheet body. The insertion portion is formed between the third sheet body and the fourth sheet body .

According to the further form of the manufacturing method of the cleaning tool which concerns on this invention, it has a 5th sheet body piled up on the said 1st sheet body, The said insertion part has a predetermined surface in the said 5th sheet body They are formed by abutting each other to form a joining sheet region and joining the predetermined surfaces in the joining sheet region.
The manufacturing method of the cleaning tool characterized by the above-mentioned.

  According to the further form of the manufacturing method of the cleaning tool which concerns on this invention, the said 1st fiber assembly is provided in the one side of the said base.

  According to the further form of the manufacturing method of the cleaning tool which concerns on this invention, the 2nd fiber assembly is provided in the other side of the said base.

In order to solve the above-mentioned problem, according to a preferred embodiment of the method for manufacturing a cleaning sheet according to the present invention, in the method for manufacturing a cleaning sheet that is held by a holder to constitute the cleaning tool, A first fiber assembly that is bonded to the base and has a stretch elastic modulus higher than the stretch elastic modulus of the base, and is defined by a direction in which the holder is inserted into the cleaning sheet. It is configured to extend in both a direction and a longitudinal cross direction defined by a direction intersecting the longitudinal direction.
Then, by applying a predetermined tension to the first fiber assembly, the step of extending at least a part of the fibers constituting the first fiber assembly, and the first fiber assembly are extended. In this state, the step of joining the first fiber assembly and the base portion to which a predetermined tension is applied , and cutting the base portion and the first fiber assembly in a predetermined region. The step of releasing the first fiber assembly from the tension, and the region protruding from the first fiber assembly in the longitudinal crossing direction at the base by contracting the fiber released from the tension. Forming a protruding region .
Thereby, when the user grips the holder and returns the wrist during the cleaning operation, the end region of the first fiber assembly is removed from the cleaning target in a state where the protruding region is in contact with the cleaning target. It is configured to be separable.

ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the cleaning tool with high cleaning effect and the manufacturing method of a cleaning sheet can be provided with the protrusion area | region of a base.

It is a perspective view which shows the whole structure of the cleaning tool which concerns on embodiment of this invention. It is a top view of a cleaning holder. It is a disassembled perspective view which shows each component of a cleaning body. It is a top view of the cleaning body seen from the cleaning surface side. It is a top view of the cleaning body seen from the holding surface side. It is a figure which shows the state which engaged the cleaning holder with the cleaning body. It is sectional drawing in the IX-IX line of FIG. It is explanatory drawing which shows the use condition of the cleaning tool. It is explanatory drawing which shows the state of a fiber. It is explanatory drawing which shows the state of a fiber. It is a flowchart which shows the manufacturing process which concerns on embodiment of this invention. It is explanatory drawing which shows a 1st process. It is explanatory drawing which shows a 2nd process. It is explanatory drawing which shows a 3rd process. It is explanatory drawing which shows a 4th process. It is explanatory drawing which shows a 5th process. It is explanatory drawing which shows a 6th process. It is explanatory drawing of the cleaning body which concerns on the 1st modification of this invention. It is explanatory drawing of the cleaning body which concerns on the 2nd modification of this invention. It is explanatory drawing of the cleaning body which concerns on the 3rd modification of this invention. It is explanatory drawing of the cleaning body which concerns on the 4th modification of this invention. It is explanatory drawing of the cleaning body which concerns on the 5th modification of this invention. It is explanatory drawing of the cleaning body which concerns on the 6th modification of this invention. It is explanatory drawing of the cleaning body which concerns on the 7th modification of this invention. It is explanatory drawing of the cleaning body which concerns on the 8th modification of this invention. It is explanatory drawing of the cleaning body which concerns on the 9th modification of this invention.

(Outline of cleaning tools)
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. First, the configuration of the cleaning tool A which is an embodiment of the “cleaning tool” in the present invention will be described. The cleaning objects to be cleaned using this cleaning tool A include indoor, outdoor, and outdoor surfaces to be cleaned (floor surface, wall surface, window, ceiling surface, outer wall surface, furniture, etc.) Surface, clothes, curtains, bedding, lighting, home appliances, etc.) and surfaces to be cleaned in each component of the human body. These various surfaces to be cleaned may be configured as a flat surface, or may be configured as a curved surface, an uneven surface, or a step surface.

  As shown in FIG. 1, the cleaning tool A includes a cleaning body holder 200 and a cleaning body 100. The cleaning body holder 200 is detachably attached to the cleaning body 100 and is configured to hold the cleaning body 100. This cleaning tool A is an example of the “cleaning tool” in the present invention. This cleaning body holder 200 is an example of the “holder” in the present invention. This cleaning body 100 is an example of the “cleaning sheet” in the present invention.

The cleaning body 100 is configured to extend in both the longitudinal direction Y and the longitudinal intersecting direction X defined by the direction intersecting the longitudinal direction Y. The longitudinal direction Y is defined by a direction parallel to the direction in which the cleaning body holder 200 is inserted into the cleaning body 100. The direction in which the cleaning body holder 200 is inserted into the cleaning body 100 is the insertion direction Y1. The direction opposite to the insertion direction Y1 is the drawing direction Y2.
A direction intersecting with each of the longitudinal direction Y and the longitudinal crossing direction X is a thickness direction Z. In the description of the embodiment according to the present invention, unless otherwise specified, “intersection” means “orthogonal”.

In the cleaning body 100, a point that is the center of the longitudinal cross direction X is defined as a longitudinal cross direction center point XCP. Note that the longitudinal cross direction X for forming the longitudinal cross direction center point XCP can be appropriately selected from the longitudinal cross directions X at arbitrary locations on the cleaning body 100.
A straight line passing through the longitudinal cross-direction center point XCP and parallel to the longitudinal direction Y is defined as a longitudinal center line YCL.

  A direction from the longitudinal cross direction center point XCP to the region where the cleaning body 100 does not exist is defined as an outer direction 100D1. Furthermore, a direction from the region where the cleaning body 100 does not exist to the longitudinal cross direction center point XCP is defined as an inner direction 100D2.

(Configuration of cleaning body holder)
As shown in FIG. 2, the cleaning body holder 200 is mainly composed of a handle part 210 and a cleaning body holding part 220. The handle part 210 is a member that is formed in a long shape and is held by the user during cleaning. The handle part 210 has a handle 211 and a handle joint part 212. The handle joint portion 212 is joined to the connecting portion 230 of the cleaning body holding portion 220. The handle 211 is formed in a long shape extending from the handle joint portion 212. The handle portion 210 is an example of the “gripping portion” in the present invention. The cleaning body holding unit 220 is an example of the “holding unit” in the present invention.

  The cleaning body holding part 220 is a member for holding the cleaning body 100, which is molded from a resin material. The cleaning body holding part 220 is mainly composed of two holding members 221 formed in a long shape, a convex part 260, a pressing plate 270, and the like. Specifically, the cleaning body holder 220 is made of polypropylene (PP). In addition, the cleaning body holding | maintenance part 220 can select the resin material which has flexibility suitably. For example, polyethylene (PE), polyethylene terephthalate (PET), acrylonitrile-butadiene-styrene resin (ABS), and a polyester-based thermoplastic elastomer can be used.

  The holding member 221 extends from the connecting portion 230 in a direction opposite to the direction in which the handle 211 extends. That is, the holding member 221 includes a connecting portion 230, a tip portion 240, and an intermediate portion 250 that extends from the connecting portion 230 toward the tip portion 240. The front end portions 240 of the two holding members 221 are free ends.

  The convex portion 260 is provided in the outer direction 100D1 in the intermediate portion 250. The convex portion 260 includes a first convex portion 261 provided on the connecting portion 230 side and a second convex portion 262 provided on the distal end portion 240 side.

  The holding plate 270 is formed to protrude from the connecting portion 230. The holding plate 270 is formed between the pair of holding members 221 so as to extend in parallel with the holding member 221. The presser plate 270 is configured as a plate-like member that is curved so as to be convex downward, and further includes a locking projection (not shown) on the lower surface.

(Configuration of cleaning body)
Next, the cleaning body 100 will be described with reference to FIGS. The cleaning body 100 is a sheet-like cleaning body having a dirt collecting function for collecting dirt such as dust to be cleaned. As shown in FIGS. 4 and 5, the cleaning body 100 is formed in a rectangular shape in plan view.
This cleaning body 100 is a disposable type that is used once as a guide, or a disposable type that is replaced with multiple uses as a guide while holding dust and dust removed from the surface to be cleaned. It may be of a type that can be used repeatedly after washing or the like.

  In the cleaning body 100, the base 120 is formed by the first sheet body 121. The base 120 has an end 120A on the longitudinal cross direction X, an end 120B on the longitudinal direction Y, one surface 120C, and the other surface 120D. The base 120, the first sheet body 121, the one surface 120C, and the other surface 120D are respectively the “base”, “first sheet body”, “one side”, and “the other side” in the present invention. It is an example.

The fiber assembly 110GF is disposed on one surface 120C of the base 120. A second sheet body 122 is disposed on the other surface 120D of the base 120.
These laminated base 120, fiber assembly 110 </ b> GF, and second sheet body 122 all extend in the longitudinal direction Y in the cleaning body 100.
The fiber aggregate 110GF forms a brush part 110 having a dirt collecting function. This fiber assembly 110GF is an example of the “fiber assembly” according to the present invention. The brush portion 110 is an example of the “brush portion” in the present invention. Note that, as in the cleaning body 100 according to this embodiment, the fiber assembly 110GF disposed on the one surface 120C side of the base 120 is referred to as a first fiber assembly 110GF1. The first fiber aggregate 110GF1 is an example of the “first fiber aggregate” according to the present invention.

The fiber aggregate 110GF is formed by an aggregate of fibers 110SF. In this invention, the fiber 110SF is a single fiber structure composed of typical fibers, or a fiber structure in which typical fibers are aligned in the length direction and / or radial direction (twisted yarn, spun yarn, a plurality of long lengths). A thread material in which fibers are partially connected), or an aggregate of the fiber structure. Here, the “typical fiber” is a structural unit such as a yarn or a woven fabric, and has a length that is sufficiently long compared to the thickness, and is in a thin and flexible form. Typically, long continuous fibers are long fibers (filaments), and short fibers are short fibers (staples).
The fibers 110SF partially include thermoplastic fibers, and each fiber 110SF can be fused (also referred to as “welding”).
The fiber aggregate 110GF is formed by a plurality of fibers 110SG arranged in parallel in a predetermined fiber orientation direction 110D and stacked in the thickness direction Z. In the embodiment of the present invention, the fiber orientation direction 110D substantially coincides with the longitudinal cross direction X. On the other hand, since fiber 110SG is a flexible material, it is easily bent and deformed. Therefore, the fiber orientation direction 110D of the fiber 110SG indicates the fiber orientation in product design.

  The fiber 110SF of the fiber assembly 110GF has a connection end portion 110SFA that is an end portion to be welded to the central joint portion 140. The fiber 110SF has an open end 110SFB that is an end opposite to the connection end 110SFA. The open end 110SFB is a free end.

  In FIG. 3, the fiber assembly 110GF is formed by laminating three fiber layers, but the number of fiber layers may be one or more as necessary. The fiber assembly 110GF preferably has a planar structure with a predetermined plane or curved surface, and is configured as a three-dimensional shape having a certain thickness or a thin sheet shape. The fiber aggregate 110GF is typically made of polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), nylon, rayon, etc., and is practically a long fiber (filament) obtained by opening the tow. ) Is preferably used. In particular, the core portion is preferably made of polypropylene (PP) or polyethylene terephthalate (PET), and the sheath portion covering the outer surface of the core portion is preferably composed of a composite fiber of polyethylene (PE) to form the fiber assembly 110GF. . The fineness 110SF of the fibers forming the fiber assembly 110GF is preferably 1 to 50 dtex, more preferably 2 to 10 dtex. Each fiber assembly may be composed of fibers having substantially the same fineness, or each fiber assembly may include fibers having different finenesses.

Moreover, in order to improve the dirt collection function at the time of cleaning, an oil agent is supplied to the fiber assembly 110GF. This oil agent is mainly composed of liquid paraffin.
In addition, in order to improve the sweeping function at the time of cleaning, it is preferable to use a fiber assembly 110GF including a highly rigid fiber 110SF, that is, a fiber 110SF having a high fineness. Moreover, it is preferable that the fiber assembly 110GF includes crimped fibers. A crimped fiber here is comprised as a fiber to which the predetermined winding shrinkage process was provided, and is set as the structure where fibers are easy to get entangled. When such a crimped fiber is used, the fiber assembly 110GF is bulkier than the state before the cleaning body holder 200 is mounted, and a structure in which dust is easily taken into the crimped portion. This structure can be realized in particular by using crimped fibers formed from tow fibers.

As shown in FIG. 5, the second sheet body 122 is a sheet formed of a rectangular nonwoven fabric shorter than the base 120 in the longitudinal direction Y.
As for the nonwoven fabric which comprises the base 120 (1st sheet body 121) and the 2nd sheet body 122, all typically the sheet-like nonwoven fabric which consists of a thermomeltable fiber (thermoplastic fiber) is used. That is, the base 120 and the second sheet body 122 are also referred to as “nonwoven fabric sheets”. In addition, in order to improve the sweeping-out function at the time of cleaning, it is preferable to use a highly rigid nonwoven fabric.
In addition, synthetic fibers, such as polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET), are used for this nonwoven fabric. Moreover, as a form of a nonwoven fabric, what was formed by the air through method or the spun bond method is used.
On the other hand, even if it is other than a nonwoven fabric, a cloth, a film body made of a synthetic resin, or the like can be used.

  The base 120 and the second sheet body 122 include a central joint 140 that extends along the longitudinal center line YCL of the cleaning body 100 and a plurality of first joints 141 that are located on both sides of the central joint 140. Are welded together. That is, as shown in FIG. 7, the base 120, the second sheet body 122, and the fiber assembly 110 </ b> GF are welded and joined at the central joint 140. Further, the base 120, the second sheet body 122, and a part of the fiber aggregate 110 </ b> GF are welded and joined at the first joint 141. In addition, the 1st junction part 141 located in the both ends side in the longitudinal direction Y is formed in the position where the 2nd sheet | seat body 122 does not exist. Therefore, the 1st junction part 141 located in the both ends in the longitudinal direction Y joins only base 120 and some fiber aggregates 110GF.

A pair of holding spaces 130 extending in the longitudinal direction Y are formed between the base 120 and the second sheet body 122 in a region sandwiched between the central joint 140 and the first joint 141. Yes. In addition, openings 131 are formed at both ends of the holding space 130 in the longitudinal direction Y, respectively. The holding space 130 is an example of the “insertion portion” in the present invention.
In other words, the holding space 130 is formed by a predetermined region of the base 120 between the pair of first joining portions 141 in the longitudinal cross direction X and a predetermined region of the second sheet body 122.

  A plurality of first joining portions 141 are formed continuously along the longitudinal direction Y. On the other hand, the first welded joints 141 adjacent in the longitudinal direction Y do not necessarily need to be arranged in the longitudinal direction Y. The arrangement form of the first welding joint portion 141 can be appropriately designed depending on the design property and the shape of the cleaning body holding portion 220. At this time, of course, the first weld joint 141 can be formed in a continuous line shape.

The above-described central joint 140 and first joint 141 are formed by heat welding.
On the other hand, the joint portion according to the present invention can also be formed by an adhesive such as ultrasonic welding, sewing, or a hot melt adhesive.

In the longitudinal cross direction X, the base portion 120 is formed to have a larger extension length than the brush portion 110. The base portion 120 formed longer than the brush portion 110 is a protruding region 120L. This protruding region 120L is an example of the “protruding region” according to the present invention.
In the embodiment according to the present invention, the first sheet body 121 and the second sheet body 122 have the same length in the longitudinal cross direction.

  In the present invention, it is sufficient that the base 120 forms the protruding region 120 </ b> L with respect to the brush portion 110. That is, although the first sheet body 121 is the base 120, the second sheet body 122 may be the base 120.

(Engagement of cleaning body holder and cleaning body)
Next, the engagement between the cleaning body holder 200 and the cleaning body 100 will be described with reference to FIGS. 6 and 7. As shown in FIG. 6, each holding member 221 can be inserted into the holding space 130. The cleaning body 100 is held by the cleaning body holder 200 by the holding member 221 being inserted into the holding space 130 along the insertion direction Y1. On the other hand, in order to separate the cleaning body holder 200 and the cleaning body 100 engaged with each other, the cleaning body holder 200 is pulled out from the holding space 130 along the pulling direction Y2.

In the engaged state of the cleaning body holder 200 and the cleaning body 100, the convex portion 160 is disposed between the adjacent first joint portions 141. Thereby, the engagement state of the cleaning body holder 200 and the cleaning body 100 is reliably maintained.
In addition, the holding plate 270 holds the second sheet body 122 together with the holding member 221.

(Function)
The operation of the cleaning tool A according to the embodiment of the present invention will be described with reference to FIG.
The user holds the handle 211 of the handle part 210 and brings the cleaning body 100 into contact with the object to be cleaned. As a result, the brush unit 110 can collect or remove dust to be cleaned in the brush unit 110.

  On the other hand, it is assumed that when the user finishes the cleaning operation and removes the cleaning tool A from the object to be cleaned, an operation of twisting the wrist is added. In this case, the cleaning body 100 is inclined with respect to the object to be cleaned. And the edge part area | region on the longitudinal cross direction X in the protrusion area | region 120L contacts the cleaning object as shown in FIG. When the user further returns the wrist from the state of FIG. 8, first, the end region in the longitudinal cross direction X of the brush portion 110 is separated from the object to be cleaned. At this time, the end of the brush portion 110 in the longitudinal cross direction X soars up the dust. On the other hand, since the protruding region 120L is in contact with the object to be cleaned, the dust is prevented from rising.

  In addition, when the user returns the wrist, the same effect can be obtained even if the protruding region 120L is not necessarily grounded.

(Manufacturing process)
Next, a method for manufacturing the cleaning tool A according to the embodiment of the present invention will be described with reference to FIGS. First, before describing the specific manufacturing process, the fiber 110SF forming the fiber assembly 110GF according to the present invention will be described.
FIG. 9 shows a fiber 110SF that forms the fiber assembly 110. Note that the fiber 110SF according to FIG. 9 shows a stationary state in which no external force is applied. Since the fiber 110SF is a crimped fiber, it has a plurality of bent portions 110SFC and has a zigzag shape. The bent portion 110SFC is also called a crimp portion.
The fiber 110SF can be expanded and contracted by having the bent portion 110SFC. FIG. 10 shows a state in which an external force (tension) is applied in opposite directions to both ends of the stationary fiber 110SF. Thus, the fibers 110SF can be extended by separating the distance between the bent portions 110SF. On the other hand, in the state where the external force is released, the fiber 110SF returns from the extended state shown in FIG. 10 to the stationary state shown in FIG.

Here, the base 120 and the fiber assembly 110GF have different elastic elastic modulus. That is, the stretch elastic modulus of the fiber assembly 110GF is higher than the stretch elastic modulus of the base 120. Specifically, the stretch elastic modulus of the fiber assembly 110GF is 75.7%, and the stretch elastic modulus of the base 120 is 56.0%.
In addition, in the measurement of elastic modulus of elasticity, it carried out by the following test.
(1) A test piece of the fiber assembly 110GF and a test piece of the base 120 are prepared. The test piece has a length of 500 mm.
The fiber assembly 110GF used was a tow fiber formed of a core-sheath composite fiber in which polyethylene (PE) is a sheath material and polyethylene terephthalate (PET) is a core material. This tow fiber has a fineness of 3.5 dtex for one fiber. The fineness of the entire fiber assembly is 110,000 dtex.
The base 120 is a spunbonded nonwoven fabric formed of a core-sheath composite fiber in which polyethylene (PE) is a sheath material and polyethylene terephthalate (PET) is a core material. This nonwoven fabric has a basis weight of 20 g / m2. The width was 190 mm.
(2) A mark indicating the start and end of a predetermined length is attached in the longitudinal direction of the test piece. This mark indicates a length of 200 mm. The length between the start end and the end end in this state is L0. L0 is 200 mm.
(2) Fix the upper end of the test piece with a clip.
(3) A 5 kg weight is suspended so that a load is applied to the entire width at the lower end of the test piece.
(4) After 30 seconds have elapsed, the length between the start end and the end attached to the test piece is measured. This length is L1.
(5) After the elapse of 30 seconds except for the weight, the length between the start end and the end attached to the test piece is measured. This length is L2.
(6) A value obtained by dividing the difference between L1 and L2 by the difference between L1 and L0 and further multiplying by 100 was taken as the elastic modulus of elasticity.
(7) This test was performed 5 times to obtain an average numerical value.

  FIG. 11 is a flowchart showing the manufacturing process. The manufacturing process includes a first step S11 that is a step of laminating the base 120, the second sheet, and a material that becomes a part of the fiber assembly 110GF, and a step of joining the materials laminated in the first step S11. The second step S12, the third step S13, which is a step of laminating a part of the fiber aggregate 110GF on the material joined in the second step S12, and the material laminated in the third step S13. A fourth step S14 that is a step to be performed, a fifth step S15 that is a step of cutting the material joined in S14 into a predetermined shape, and a sixth step S16 that is a step of forming the protruding region 120L in the base 120. It consists of.

FIG. 12 shows the first step S11. In the first step S11, a first sheet material 1211 for forming the first sheet body 121 to be the base 120, a second sheet material 1221 for forming the second sheet body 122, A first fiber assembly material 110GF1A for forming a part of one fiber assembly 110GF1 is supplied. As a result, the first fiber aggregate material 110GF1A is disposed on one side of the first sheet material 1211. The second sheet material 1221 is disposed on the other side of the first sheet material 1211.
In the manufacturing process of the present invention, each material is supported by the support roll R and is transferred in the machine direction M by a drive mechanism (not shown).
In addition, the fiber orientation direction 110D of the first fiber assembly material 110GF1A approximately matches the machine direction M.

  FIG. 13 shows the second step S12. In the second step S12, all layers of the second sheet material 1221, the first sheet material 1211, and the first fiber assembly material 110GF1 are welded. At this time, two portions of the predetermined region in the second sheet material 1221, the first sheet material 1211, and the first fiber assembly material 110GF1 are welded. The welded portions form a pair of first joint portions 141.

FIG. 14 shows the third step S13. In the third step S13, the second fiber assembly material 110GF1B is supplied. The second fiber aggregate material 110GF1B is supplied to the side of the first fiber aggregate material 110GF1A where the first sheet material 121 is not disposed.
Note that the fiber orientation direction 110D of the second fiber assembly material 110GF1B approximately matches the machine direction M.

  FIG. 15 shows the fourth step S14. In the fourth step S14, all layers of the second sheet material 1221, the first sheet material 1211, the first fiber assembly material 110GF1A, and the second fiber assembly material 110GF1B are joined by thermal welding. . This joining operation is performed at an intermediate portion of the pair of first joining portions 141. This welded location forms a central joint 140.

Note that a predetermined tension is applied to the first fiber assembly material 110GF1A over the first step S11 to the fourth step S14. A specific tension is 40N.
As a result, particularly in the second step S12, the first fiber aggregate material 110GF1A to which a predetermined tension is applied is joined to the first sheet material 1211 serving as the base 120. This is an example of the “step of bonding the first fiber assembly to the base in a state where the first fiber assembly 110 is stretched” according to the present invention.

The predetermined tension applied to the first fiber assembly material 110GF1A is applied to stabilize the shape of the first fiber assembly material 110GF1A in order to facilitate manufacture.
Further, this tension is applied to shrink the fiber 110SF of the fiber assembly material 110GF and form the flexible region 120E in the base 120 in the manufacturing process described later.
In this sense, it is sufficient to apply a predetermined tension only to the first fiber assembly material 110GF1A in order to form the deflection region E in the base 120.
This predetermined tension can also be applied to the second fiber assembly material 110GF1B. In this case, the fibers 110SF of the second fiber assembly material 110GF1B also contract in the subsequent manufacturing process. Therefore, the second fiber assembly material 110GF1B does not inhibit the contraction of the first fiber assembly material 110GF1A.
Note that tension is also applied to the first sheet material 1211 and the second sheet material 1221 in order to stabilize the shape. This is related to the present invention, "in the step of joining the first fiber assembly to the base in a state where the first fiber assembly is stretched, a predetermined tension is applied to the base." It is an example.

  FIG. 16 shows the fifth step S15. In the fifth step S15, the second sheet material 1221, the first sheet material 1211, the first fiber assembly material 110GF1A, and the second fiber assembly material 110GF1B are cut at predetermined regions. By this cutting operation, the second sheet material 1221, the first sheet material 1211, the first fiber aggregate material 110GF1A, and the second fiber aggregate material 110GF1B are released from the tension.

FIG. 17 shows the sixth step S16. In the sixth step S16, the fiber 110SF corresponding to the first fiber assembly material 110GF1A released from the tension contracts toward the inner direction 100D2 in the longitudinal cross direction X. As the fiber 110SF contracts, the distance in the longitudinal cross direction X between the pair of joints 141 contracts. Thereby, a protruding region 120 </ b> L is formed in the base 120.
This is the step of “releasing the application of tension to the first fiber assembly according to the present invention, and forming the protruding region in the base by contracting the fiber that has been extended by the tension. Is an example.
Thus, the cleaning body 100 of the cleaning tool A according to the present invention is manufactured.

  In addition, this invention is not limited only to said embodiment, A various application and deformation | transformation can be considered. For example, in the cleaning tool A in the above-described embodiment, two holding members 211 of the holder 200 are formed, and two holding spaces 130 of the cleaning body 100 are also formed correspondingly. On the other hand, a single holding space 130 may be provided for the two holding members 211. Furthermore, a single holding space 130 can be provided for a single holding member 211.

  Hereinafter, although it demonstrates about the modification of the said embodiment, in the same structure as the cleaning tool A in the said embodiment, while attaching | subjecting the same code | symbol, the description is abbreviate | omitted.

(First modification)
A first modification will be described based on FIG. In addition, the cleaning body 101 which concerns on a 1st modification differs in the structure of the holding | maintenance space 130 compared with the cleaning body 100 in the above-mentioned embodiment.
That is, the holding space 130 of the cleaning body 101 according to the first modification is formed only by the first sheet body 121 that constitutes the base 120. That is, predetermined surfaces of the first sheet body 121 are brought into contact with each other to form the bonding sheet region 121A. A predetermined region in the bonding sheet region 121 </ b> A is welded to form the second bonding portion 142.
Thereby, the holding space 130 which is a space extending in the longitudinal direction Y can be formed.
In the case of the first modification, the central joint 140 can join only the brush part 110. In this case, the brush part 110 and the base part 120 can be joined by an adhesive (not shown) or the like.
Even the cleaning body 101 according to the first modified example has the same operation and effect as the cleaning body 100 in the above-described embodiment because the protruding region 120L is formed in the base portion 120.

(Second modification)
A second modification will be described based on FIG. In addition, the cleaning body 102 which concerns on a 2nd modification differs in the structure of the holding | maintenance space 130 compared with the cleaning body 100 in the above-mentioned embodiment.
That is, the holding space 130 of the cleaning body 102 according to the second modification is formed independently of the base 120. The third sheet body 123 and the fourth sheet body 124 are overlapped. And the area | region of the both ends vicinity in the longitudinal cross direction X in the 3rd sheet | seat 123 and the 4th sheet | seat 124 is welded along the longitudinal direction Y direction, and the 4th junction part 144 is formed.
Accordingly, a holding space 130 that is a space extending in the longitudinal direction Y can be formed between the third sheet 123 and the fourth sheet 124.
In the case of the second modification, the central joint 140 joins only the brush part 110 and the base 120. The third sheet 123 is joined to the base 120 with an adhesive or the like to form a fifth joint 145.
Even in the cleaning body 101 according to the second modified example, since the protruding region 120L is formed in the base 120, the same operation and effect as the cleaning body 100 in the above-described embodiment are exhibited.

(Third Modification)
A third modification will be described based on FIG. In addition, the cleaning body 103 according to the third modification is different in the configuration of the holding space 130 from the cleaning body 100 in the above-described embodiment.
That is, the holding space 130 of the cleaning body 103 according to the third modification is formed independently of the base 120. That is, predetermined surfaces of the fifth sheet body 125 are brought into contact with each other to form the joining sheet region 125A. A predetermined region in the bonding sheet region 125A is welded to form a sixth bonding portion 146. Thereby, the holding space 130 which is a space extending in the longitudinal direction Y can be formed.
In the case of the third modification, the central joint 140 joins only the brush part 110 and the base 120. The fifth sheet 125 is bonded to the base 120 with an adhesive or the like to form a seventh bonded portion 147.
Even the cleaning body 103 according to the third modified example has the same operation and effect as the cleaning body 100 in the above-described embodiment because the protruding region 120L is formed in the base 120.

(Fourth modification)
A fourth modification will be described based on FIG. In addition, the cleaning body 104 according to the fourth modified example includes the brush portion 110 not only on the one surface 120C side of the base 120 but also on the other surface 120D side as compared with the cleaning body 100 in the above-described embodiment. Is formed.
That is, the first fiber assembly 110GF1 is overlaid on the one surface 120C side of the base 120. The second sheet 122 and the second fiber assembly 110GF2 are overlaid on the other surface 120D of the base 120. The second fiber aggregate 110GF2 is an example of the “second fiber aggregate” according to the present invention. In other words, the base body 120 and the second sheet body 122 are sandwiched between the two fiber assemblies 110GF. In this laminated body, end regions in the longitudinal cross direction X in the base 120 and the second sheet body 122 are welded to form a pair of eighth joints 148. Further, in the region between the pair of eighth joints 148, the stacked body is welded to form a ninth joint 149. In this way, the cleaning body 104 is formed.
Even in the cleaning body 104 according to the fourth modified example, since the protruding region 120L is formed in the base 120, the same operation and effect as the cleaning body 100 in the above-described embodiment are exhibited.
Furthermore, since the brush part 110 is also formed on the other surface 120D side of the base part 120, the convenience for the user is improved.

(Fifth modification)
A fifth modification will be described based on FIG. In addition, the cleaning body 105 according to the fifth modification is not limited to the one surface 120C side of the base 120 but also the other surface 120D side as compared with the cleaning body 101 in the first modification described above. The part 110 is formed.
That is, the second fiber assembly 110GF2 is joined to the first sheet body 121 forming the holding space 130. The fiber aggregate 110GF on the other surface 120D side of the base 120 is welded in the central region. The weld location in this central region forms a tenth joint 1410. The fiber assembly 110GF having the tenth joint portion 1410 is joined to the first sheet body 121 forming the holding space 130 by an adhesive (not shown) or the like. In this way, the cleaning body 105 is formed.
Even in the cleaning body 105 according to the fifth modified example, since the protruding region 120L is formed in the base 120, the same operation and effect as the cleaning body 100 in the above-described embodiment are exhibited.
Furthermore, since the brush part 110 is also formed on the other surface 120D side of the base part 120, the convenience of the user is improved as compared with the cleaning body 101 according to the first modification described above.

(Sixth Modification)
A sixth modification will be described based on FIG. In addition, the cleaning body 106 according to the sixth modification is not limited to the one surface 120C side of the base 120 but also the other surface 120D side as compared with the cleaning body 102 according to the second modification described above. The part 110 is formed.
That is, the second fiber assembly 110GF2 and the sixth sheet body 126 are welded in the central region to form the eleventh joint 1411. Then, the surface of the sixth sheet body 126 on which the second fiber aggregate 110GF2 is not disposed and the fourth sheet body 124 are joined together with an adhesive or the like to form a twelfth joining portion 1412. In this way, the cleaning body 106 is formed.
Even in the cleaning body 106 according to the sixth modified example, since the protruding region 120L is formed in the base portion 120, the same operations and effects as the cleaning body 100 in the above-described embodiment are exhibited.
Furthermore, since the brush part 110 is also formed on the other surface 120D side of the base part 120, the convenience of the user is improved as compared with the cleaning body 102 according to the second modified example.

(Seventh Modification)
A seventh modification will be described with reference to FIG. Note that the cleaning body 107 according to the seventh modification is not limited to the one surface 120C side of the base 120 but also the other surface 120D side, as compared with the cleaning body 103 according to the third modification described above. The part 110 is formed.
That is, the second fiber assembly 110GF2 and the seventh sheet body 127 are welded in the central region to form the thirteenth joint portion 1413. Then, the surface of the seventh sheet body 127 on which the fiber assembly 110 is not disposed and the fifth sheet body 125 are bonded together with an adhesive or the like to form a fourteenth bonded portion 1414. In this way, the cleaning body 107 is formed.
Even the cleaning body 107 according to the seventh modification example has the same operation and effect as the cleaning body 100 in the above-described embodiment because the protruding region 120L is formed in the base 120.
Furthermore, since the brush part 110 is also formed on the other surface 120D side of the base part 120, the convenience of the user is improved as compared with the cleaning body 103 according to the third modified example.

(Eighth modification)
An eighth modification will be described with reference to FIG. In the cleaning body 108 according to the eighth modification, the protruding region 120L is formed in the direction of both ends 120B in the longitudinal direction Y of the base 120 as compared with the cleaning body 100 in the above-described embodiment. is there.
That is, in the longitudinal crossing direction X, the lengths of the base 120, the second sheet 122, and the brush portion 110 are the same. On the other hand, in the longitudinal direction Y, the length of the base portion 120 is longer than the length of the brush portion 110.
For this reason, in the cleaning operation | movement which moves the cleaning body 108 to the longitudinal direction Y, there exists an effect | action and effect similar to the cleaning body 100 in the above-mentioned embodiment.

(Ninth Modification)
A ninth modification will be described with reference to FIG. Note that the cleaning body 109 according to the ninth modified example has the protruding region 120L in the end 120A direction and the longitudinal direction Y on the longitudinal crossing direction X in the base 120 as compared with the cleaning body 100 in the above-described embodiment. It is formed in the direction of both ends 120B.
That is, in the longitudinal cross direction X and the longitudinal direction Y, the length of the base portion 120 is longer than the length of the brush portion 110.
In the cleaning body 108 according to the ninth modified example, a protruding region 120L is formed in the direction of the end 120A in the longitudinal cross direction X and the end 120B in the longitudinal direction Y of the base 120. For this reason, the effect | action and effect of the cleaning body 100 which concerns on embodiment mentioned above, and the cleaning body 108 which concerns on an 8th modification are achieved simultaneously.

(Correspondence of each component of embodiment or example of the present invention)
The cleaning tool A is an example of the “cleaning tool” according to the present invention. The cleaning bodies 100, 101, 102, 103, 104, 105, 106, 107, 108, and 109 are examples of the “cleaning sheet” according to the present invention. The cleaning body holder 200 is an example of the “holding tool” according to the present invention. The base 120 is an example of the “base” according to the present invention. The first fiber aggregate 110GF1 is an example of the “first fiber aggregate” according to the present invention. The fiber 110SF is an example of the “fiber” according to the present invention. The protruding region 120L and the holding space 130 are an example of the “insertion portion” according to the present invention. It is an example of the “protrusion region” according to the present invention. The first sheet body 121 is an example embodiment that corresponds to the “first sheet body” according to the present invention. The first sheet body 121 is an example embodiment that corresponds to the “first sheet body” according to the present invention. The second sheet body 122 is an example embodiment that corresponds to the “second sheet body” according to the present invention. The third sheet body 123 is an example of the “third sheet body” according to the present invention. The fourth sheet body 124 is an example of the “fourth sheet body” according to the present invention. The fifth sheet body 121 is an example embodiment that corresponds to the “fifth sheet body” according to the present invention. One surface 120A is an example of "one side" according to the present invention. The other surface 120D is an example of the “other side” according to the present invention.

  In addition, embodiment and the modification of this invention are not restricted to what was mentioned above. It is possible to combine the structure which concerns on embodiment mentioned above and each modification suitably. Further, it is possible to add / change further forms.

In view of the gist of the above invention, the following modes can be configured for the method for manufacturing a cleaning tool and the method for manufacturing a cleaning sheet according to the present invention.
(Aspect 1)
In the manufacturing method of the cleaning tool which has a cleaning sheet and a holder holding the cleaning sheet,
The cleaning sheet has a base and a first fiber assembly bonded to the base,
Extending at least a part of the fibers constituting the first fiber assembly by applying a predetermined tension to at least the first fiber assembly;
Bonding the first fiber assembly to the base in a state where the first fiber assembly is stretched;
Releasing the application of tension to the first fiber assembly, and forming the projecting region in the base by contracting the fiber that has been extended by the tension; and
The manufacturing method of the cleaning tool characterized by having.
(Aspect 2)
In the manufacturing method of the cleaning tool described in the aspect 1,
A cleaning tool, wherein a predetermined tension is applied to the base in the step of joining the first fiber aggregate to the base in a state where the first fiber aggregate is extended. Production method.
(Aspect 3)
In the manufacturing method of the cleaning tool described in either one of aspects 1 or 2,
The cleaning tool, wherein the base and the first fiber assembly have different elastic constants.
(Aspect 4)
In the manufacturing method of the cleaning tool described in any one of aspects 1-3,
The manufacturing method of the cleaning tool characterized by including the process of providing the insertion part which inserts the holding part of the said holder in the said base.
(Aspect 5)
In the manufacturing method of the cleaning tool described in any one of aspects 1 to 4,
The said base is formed with the 1st sheet | seat body, The manufacturing method of the cleaning tool characterized by the above-mentioned.
(Aspect 6)
In the manufacturing method of the cleaning tool described in the aspect 5,
Having a second sheet body overlaid with the first sheet body;
The said insertion part is formed between the said 1st sheet | seat body and the said 2nd and sheet | seat body, The manufacturing method of the cleaning tool characterized by the above-mentioned.
(Aspect 7)
In the manufacturing method of the cleaning tool described in the aspect 5,
The insertion portion is formed by bringing predetermined surfaces in the first sheet body into contact with each other to form a bonding sheet region, and bonding the predetermined surfaces in the bonding sheet region. A method for manufacturing a cleaning tool.
(Aspect 8)
In the manufacturing method of the cleaning tool described in the aspect 5,
A third sheet body overlaid on the first sheet body, and a fourth sheet body overlaid on the third sheet body,
The said insertion part is formed between the said 3rd sheet | seat body and the said 4th and sheet | seat body, The manufacturing method of the cleaning tool characterized by the above-mentioned.
(Aspect 9)
In the manufacturing method of the cleaning tool described in the aspect 5,
Having a fifth sheet body overlaid on the first sheet body;
The insertion portion is formed by bringing predetermined surfaces in the fifth sheet body into contact with each other to form a bonding sheet region and bonding the predetermined surfaces in the bonding sheet region. A method for manufacturing a cleaning tool.
(Aspect 10)
In the manufacturing method of the cleaning tool described in any one of aspects 1-9,
The method of manufacturing a cleaning tool, wherein the first fiber assembly is provided on one side of the base.
(Aspect 11)
In the manufacturing method of the cleaning tool described in any one of aspects 1-9,
A method for manufacturing a cleaning tool, wherein a second fiber assembly is provided on the other side of the base.
(Aspect 12)
In the manufacturing method of the cleaning sheet which constitutes the cleaning tool by being held by the holding tool,
The cleaning sheet has a base and a first fiber assembly bonded to the base,
Extending at least a part of the fibers constituting the first fiber assembly by applying a predetermined tension to at least the first fiber assembly;
Bonding the first fiber assembly to the base in a state where the first fiber assembly is stretched;
Releasing the application of tension to the first fiber assembly, and forming the projecting region in the base by contracting the fiber that has been extended by the tension; and
A method for producing a cleaning sheet, comprising:
(Aspect 13)
In the manufacturing method of the cleaning tool described in aspects 1 to 11,
The method for manufacturing a cleaning tool, wherein the predetermined tension applied to the first fiber assembly is applied to all of the fibers constituting the first fiber assembly.
(Aspect 14)
In the manufacturing method of the cleaning tool described in aspects 1 to 11,
The method for manufacturing a cleaning tool, wherein the predetermined tension applied to the first fiber assembly is applied only to fibers in a region joined to the base.

A Cleaning tool (cleaning tool)
100, 101, 102, 103, 104, 105, 106, 107, 108, 109 Cleaning sheet (cleaning body)
100D1 Outer direction 100D2 Inner direction 110 Brush portion 110D Fiber orientation direction 110GF Fiber assembly 110GF1 First fiber assembly 110GF1A First fiber assembly material 110GF1B Second fiber assembly material 110GF2 Second fiber assembly 110SF Fiber 110SFA Connection end Part 110SFB Open end part 120 Base part 120A End part in longitudinal cross direction 120B End part in longitudinal direction 120C One surface (one side)
120D The other side (the other side)
120L Protrusion area 121 First sheet body 121A Joint sheet area 1211 First sheet material 122 Second sheet body 1221 Second sheet material 123 Third sheet body 124 Fourth sheet body 125 Fifth sheet body 130 Holding space (insertion part)
131 Insertion opening part 140 Central junction part 141 1st junction part 142 2nd junction part 143 3rd junction part 144 4th junction part 145 5th junction part 146 6th junction part 147 7th junction part 148 8th joint 149 9th joint 1410 10th joint 1411 11th joint 1412 12th joint 1413 13th joint 1414 14th joint 200 Holder (cleaning body holder)
210 Handle (grip)
211 Handle 212 Handle joint 220 Cleaning body holding part (holding part)
221 holding member 230 connecting portion 240 tip portion 250 intermediate portion 260 convex portion 261 first convex portion 262 second convex portion 270 holding plate Y longitudinal direction Y1 inserting direction Y2 pulling direction YCL longitudinal center line X longitudinal intersecting direction XCP longitudinal Crossing center point Z Thickness direction

Claims (10)

In the manufacturing method of the cleaning tool which has a cleaning sheet and a holder holding the cleaning sheet,
The cleaning sheet includes a base, and a first fiber assembly that is bonded to the base and has a stretch elastic modulus higher than the stretch elastic modulus of the base, and the holder is inserted into the cleaning sheet. Extending in both the longitudinal direction defined by the direction to be intersected and the longitudinal intersecting direction defined by the direction intersecting the longitudinal direction,
By imparting a predetermined tension to said first fiber assembly, the step of extending at least part of the fibers constituting the first fiber aggregate,
Bonding the first fiber assembly and the base to which a predetermined tension is applied in a state where the first fiber assembly is stretched;
Releasing the first fiber assembly from tension by cutting the base and the first fiber assembly in a predetermined region;
Forming a protruding region, which is a region protruding from the first fiber assembly in the longitudinal crossing direction, in the base by contracting the fibers released from tension ; and
Have
When the user grips the holder and returns the wrist during the cleaning operation, the end region of the first fiber assembly can be separated from the cleaning target in a state where the protruding region is in contact with the cleaning target. A method for manufacturing a cleaning tool, comprising: In the manufacturing method of the cleaning tool according to claim 1 ,
The manufacturing method of the cleaning tool characterized by including the process of providing the insertion part which inserts the holding part of the said holder in the said base. In the manufacturing method of the cleaning tool described in Claim 2 ,
The said base is formed with the 1st sheet | seat body, The manufacturing method of the cleaning tool characterized by the above-mentioned. In the manufacturing method of the cleaning tool described in Claim 3 ,
Having a second sheet body overlaid with the first sheet body;
The said insertion part is formed between a said 1st sheet | seat body and a said 2nd sheet | seat body , The manufacturing method of the cleaning tool characterized by the above-mentioned . In the manufacturing method of the cleaning tool described in Claim 3 ,
The insertion portion is formed by bringing predetermined surfaces in the first sheet body into contact with each other to form a bonding sheet region, and bonding the predetermined surfaces in the bonding sheet region. A method for manufacturing a cleaning tool. In the manufacturing method of the cleaning tool described in Claim 3 ,
A third sheet body overlaid on the first sheet body, and a fourth sheet body overlaid on the third sheet body,
The said insertion part is formed between a said 3rd sheet | seat body and a said 4th sheet | seat body , The manufacturing method of the cleaning tool characterized by the above-mentioned . In the manufacturing method of the cleaning tool described in Claim 3 ,
Having a fifth sheet body overlaid on the first sheet body;
The insertion portion is formed by bringing predetermined surfaces in the fifth sheet body into contact with each other to form a bonding sheet region and bonding the predetermined surfaces in the bonding sheet region. A method for manufacturing a cleaning tool. In the manufacturing method of the cleaning tool given in any 1 paragraph of Claims 1-7 ,
The method of manufacturing a cleaning tool, wherein the first fiber assembly is provided on one side of the base. In the manufacturing method of the cleaning tool given in any 1 paragraph of Claims 1-8 ,
A method for manufacturing a cleaning tool, wherein a second fiber assembly is provided on the other side of the base. In the manufacturing method of the cleaning sheet which constitutes the cleaning tool by being held by the holding tool,
The cleaning sheet includes a base, and a first fiber assembly that is bonded to the base and has a stretch elastic modulus higher than the stretch elastic modulus of the base, and the holder is inserted into the cleaning sheet. Extending in both the longitudinal direction defined by the direction to be intersected and the longitudinal intersecting direction defined by the direction intersecting the longitudinal direction,
By imparting a predetermined tension to said first fiber assembly, the step of extending at least part of the fibers constituting the first fiber aggregate,
Bonding the first fiber assembly and the base to which a predetermined tension is applied in a state where the first fiber assembly is stretched;
Releasing the first fiber assembly from tension by cutting the base and the first fiber assembly in a predetermined region;
Forming a protruding region, which is a region protruding from the first fiber assembly in the longitudinal crossing direction, in the base by contracting the fibers released from tension ; and
Have
When the user grips the holder and returns the wrist during the cleaning operation, the end region of the first fiber assembly can be separated from the cleaning target in a state where the protruding region is in contact with the cleaning target. A method for manufacturing a cleaning sheet, comprising:

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