WO2014104351A1 - 清掃部材の製造方法及び製造システム - Google Patents
清掃部材の製造方法及び製造システム Download PDFInfo
- Publication number
- WO2014104351A1 WO2014104351A1 PCT/JP2013/085233 JP2013085233W WO2014104351A1 WO 2014104351 A1 WO2014104351 A1 WO 2014104351A1 JP 2013085233 W JP2013085233 W JP 2013085233W WO 2014104351 A1 WO2014104351 A1 WO 2014104351A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fiber bundle
- nonwoven fabric
- cleaning member
- multilayer web
- belt
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 115
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 80
- 239000000835 fiber Substances 0.000 claims abstract description 364
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 157
- 238000005304 joining Methods 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims description 44
- 238000005520 cutting process Methods 0.000 claims description 16
- 230000002040 relaxant effect Effects 0.000 claims description 2
- 230000004927 fusion Effects 0.000 description 28
- 230000032258 transport Effects 0.000 description 25
- -1 polyethylene Polymers 0.000 description 19
- 239000000428 dust Substances 0.000 description 18
- 238000003780 insertion Methods 0.000 description 15
- 230000037431 insertion Effects 0.000 description 15
- 239000002131 composite material Substances 0.000 description 13
- 239000003795 chemical substances by application Substances 0.000 description 11
- 239000004698 Polyethylene Substances 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 229920001169 thermoplastic Polymers 0.000 description 7
- 239000004416 thermosoftening plastic Substances 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 2
- 238000010410 dusting Methods 0.000 description 2
- 229940057995 liquid paraffin Drugs 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0076—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised in that the layers are not bonded on the totality of their surfaces
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/38—Other dusting implements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
Definitions
- the present invention relates to a method for manufacturing a cleaning member and a manufacturing system for manufacturing a cleaning member.
- a belt-like inner fiber layer composed of continuous fiber bundles and a belt-like sheet member are overlapped, and both are partially joined to form a first continuous body, and similarly, a second continuous After forming the body and partially fixing the first and second continuums by overlapping them, a belt-like outer side composed of continuous fiber bundles on the inner fiber layer side of each of the first and second continuums
- a step of stacking and fixing the fiber layers a step of cutting the laminate obtained in the step into a predetermined length, and applying compressed air to the fiber layer portion in the cut laminate to open the fiber bundle
- a method for producing a cleaning article comprising the step of: forming a strip-like inner fiber layer and an outer fiber layer, each comprising a fiber bundle made of crimped fibers bent in a zigzag shape, and alternating with the crimped fibers.
- the difference is 0.1 to 0.7 mm, and in the step of opening the fiber bundle, the fiber bundle in the cut laminate is the tip of a brush whose entire circumference of the cleaning article is made of fibers of the fiber bundle.
- the first belt layer includes a first fiber layer and a first belt-like member made of continuous fiber bundles, and both longitudinal sides of the first belt-like member are folded and fixed.
- a first continuous body in which the first fiber layer is overlapped and fixed on the outer surface side of the first fiber, a second fiber layer composed of continuous fiber bundles, and a second belt-like member, and both longitudinal sides of the second belt-like member Is folded and fixed, and a second continuous body in which the second fiber layer is stacked and fixed on the outer surface side of the second belt-shaped member is manufactured, and the manufactured first continuous body and second continuous body are stacked.
- the third fiber layer and the fourth fiber layer composed of continuous fiber bundles are stacked and fixed on the first fiber layer and the second fiber layer, respectively, to form a laminate.
- a method for manufacturing a cleaning article by cutting the laminate to obtain individual cleaning articles, wherein the first belt-shaped member In each of the second belt-like members, a central portion sandwiched between a pair of breakage guide wires and an outer portion connected to the center portion via the breakage guide wires are formed.
- a step of intermittently forming the rupture guide line over the entire width direction of the first strip member and the second strip member is formed on the first strip member and the second strip member, respectively.
- the outer portions located on both sides of the central portion are cut out from each of the cut first and second strip members, leaving the central portion sandwiched between the pair of break guide wires.
- a method for manufacturing a cleaning article which includes a step and a step of opening the cut first to fourth fiber layers in a three-dimensional direction at random after cutting the laminate. .
- Patent Document 3 a method for manufacturing a cleaning article according to claim 1, wherein a continuous body of four long fiber layers in which fiber bundles are oriented in one direction, A continuous body of a long scraping sheet, a continuous body of two long base sheets, a continuous body of the fiber layer, a continuous body of the scraping sheet, a continuous body of the fiber layer, two sheets Laminate in the order of the continuum of the base sheet, the continuum of the fiber layer, the continuum of the scraping sheet, and the continuum of the fiber layer. An article continuum for cleaning, and then the cleaning article continuum between the joints of the fiber layer continuum, the base sheet continuum, and the scraping sheet continuum across the width direction. A method for manufacturing a cleaning article that is cut to obtain a plurality of cleaning articles is proposed. That.
- the present situation is that a new manufacturing method and a new manufacturing system for producing a cleaning member capable of capturing dust, dust, dust and the like more efficiently are desired.
- the present invention has been found as a result of intensive studies by the present inventors based on the current situation.
- an object of the present invention is to provide a novel manufacturing method and manufacturing system that are suitable for manufacturing a cleaning member excellent in cleaning performance and that can be manufactured efficiently.
- a method for producing a cleaning member according to the present invention is a method for producing a cleaning member obtained from a multilayer web formed by superimposing a fiber bundle and a strip-shaped nonwoven fabric, the fiber bundle In a fiber bundle conveying step that continuously conveys the belt-shaped nonwoven fabric toward the merged portion, a nonwoven fabric conveying step that conveys the belt-shaped nonwoven fabric continuously toward the merged portion, and the fiber bundle conveying step.
- the cleaning member manufacturing system of the present invention is a system for manufacturing a cleaning member from a multilayer web formed by superimposing a fiber bundle and a strip-shaped nonwoven fabric, and the fiber bundle
- a fiber bundle conveying device that continuously conveys the belt-shaped nonwoven fabric toward the merged portion
- a nonwoven fabric conveying device that continuously conveys the belt-shaped nonwoven fabric toward the merged portion
- the fiber bundle conveying device By a fiber bundle conveying device that continuously conveys the belt-shaped nonwoven fabric toward the merged portion, a nonwoven fabric conveying device that continuously conveys the belt-shaped nonwoven fabric toward the merged portion, and the fiber bundle conveying device.
- a multilayer web forming device that forms the multilayer web by superimposing the transported fiber bundle and the belt-shaped nonwoven fabric transported by the nonwoven fabric transport device at the joining portion; and the fiber bundle in the multilayer web;
- a joining device that joins the belt-shaped nonwoven fabric to each other, and the fiber bundle transport device is capable of transporting the fiber bundle with a tension that does not allow the fiber bundle to enter the width.
- the multilayer web forming device are those which can form a multi-layer web with said fiber bundle superimposed with the band-shaped non-woven fabric while applying a tension so as not to the width entering.
- a novel manufacturing method and a manufacturing system that are suitable for manufacturing a cleaning member having excellent cleaning performance and that can be manufactured efficiently are provided.
- FIG. 1 is a perspective view of a cleaning member manufactured by an embodiment of the manufacturing method and / or manufacturing system of the present invention and a gripping tool fixed to the cleaning member.
- 2 is a cross-sectional view taken along line XX of FIG.
- FIG. 3 is a plan view of the cleaning member shown in FIG. 1.
- FIG. 4 is a schematic view for explaining a method and / or a manufacturing system for manufacturing the cleaning member shown in FIG.
- FIG. 5 is a perspective view for explaining a multilayer web forming step in the production method of the present invention.
- the manufacturing method of the cleaning member by this invention is a manufacturing method which manufactures the cleaning member obtained from the multilayer web formed by superposing
- a fiber bundle conveying step for continuously conveying toward the merged portion to be superposed, a nonwoven fabric conveying step for continuously conveying the belt-shaped nonwoven fabric toward the merged portion, and a fiber bundle conveyed in the fiber bundle conveying step The multilayer web forming step of forming the multilayer web by superimposing the belt-shaped nonwoven fabric transported in the nonwoven fabric transporting step at the junction, and the fiber bundle and the belt-shaped nonwoven fabric in the multilayer web are mutually And a joining step for joining.
- a multilayer web is formed by overlapping with the belt-shaped nonwoven fabric (Aspect 1).
- “with width” in the present invention means a length in a direction orthogonal to the transport direction when a transport target such as a fiber bundle, a strip-shaped nonwoven fabric, or a multilayer web is pulled in the transport direction (length direction). That is, the length in the width direction is reduced.
- the manufacturing method of the cleaning member according to the present invention is a novel manufacturing method that is suitable for manufacturing a cleaning member excellent in cleaning performance and can be manufactured efficiently.
- the cleaning member manufacturing method according to the present invention transports the fiber bundle with a tension that does not allow the fiber bundle to enter the width in the fiber bundle transporting step, and in the multilayer web forming step, the fiber bundle transports the width of the fiber bundle.
- a multi-layer web is formed by overlapping with the belt-shaped nonwoven fabric in a state where a tension that does not enter is applied.
- contracts greatly or is crimped by the reaction of the recovery from width
- the fiber bundle in the fiber bundle conveying step it is preferable to convey the fiber bundle while slackening it in the conveying direction (length direction) (Aspect 2).
- the fiber bundle in the fiber bundle conveying step acts only to the extent of the tension caused by its own weight except when the fiber bundle is moved in the conveying direction. It is possible to stably maintain a state in which the length in the width direction is maintained substantially constant without doing so. Further, it is possible to prevent the fiber bundle from being unnecessarily opened due to the tension.
- tension is applied to the fiber bundle in the transport direction. Even in this case, only a tension that does not allow the fiber bundle to enter the width acts on the fiber bundle.
- the fiber bundle can be prevented from having a width.
- to convey the fiber bundle substantially linearly means to convey the fiber bundle while suppressing meandering of the fiber bundle.
- a certain amount of tension is applied to the fiber bundle when the fiber bundle is moved in the conveyance direction.
- a tension that does not allow the fiber bundle to enter the fiber bundle is applied to the fiber bundle. Therefore, when the fiber bundle is moved in the transport direction, the fiber bundle is linearly appropriate in the transport direction.
- the fiber bundle can be conveyed linearly with the meandering suppressed.
- the belt-shaped nonwoven fabric is transported substantially linearly (aspect 4).
- to convey the belt-shaped nonwoven fabric substantially linearly means to transport the belt-shaped nonwoven fabric to such an extent that the belt-shaped nonwoven fabric does not meander.
- the belt-shaped nonwoven fabric is transported so as not to meander, and the belt-shaped nonwoven fabric is preferably transported while applying a certain amount of tension to the belt-shaped nonwoven fabric, for example, a tension that does not allow the belt-shaped nonwoven fabric to enter. .
- the fiber bundle in any of the aspects, is conveyed with the length in the width direction of the fiber bundle being substantially constant (Aspect 5).
- the fiber bundle in the fiber bundle conveying step, the fiber bundle is conveyed with a tension that does not allow the fiber bundle to enter the width. Therefore, in the fiber bundle conveying step, the fiber bundle has a width. Without entering, it is possible to convey the fiber bundle while keeping the length in the width direction almost constant at all times. As a result, in this fiber bundle conveying step, the progress of fiber bundle opening due to excessive tension acts is suppressed as much as possible, the length of the fiber bundle, the raising condition, etc. are managed, and further, the multilayer Management of the dimensions of the entire web is facilitated.
- the width of the belt-shaped nonwoven fabric in the width direction is substantially constant and the belt-shaped nonwoven fabric is conveyed (Aspect 6).
- the length in the width direction of the belt-like nonwoven fabric is substantially constant means that the width in the width direction of the belt-like nonwoven fabric does not become small, that is, does not enter the width.
- the width of the belt-like nonwoven fabric is eliminated and the width direction length and the conveyance direction (length direction) ) May vary greatly, making it difficult to control and manage the dimensions of the strip-shaped nonwoven fabric. Therefore, according to this aspect 6, since the width of the belt-shaped nonwoven fabric does not occur, even after the tension is released, the variation in the length in the conveyance direction and the length in the width direction is small, and the control of the dimensions of the belt-shaped nonwoven fabric And management, and further management of the dimensions of the entire multi-layer web is facilitated.
- any of the aspects in the bonding step of bonding the fiber bundle and the strip-shaped nonwoven fabric in the multilayer web to each other, these fiber bundles and the strip-shaped nonwoven fabric are bonded to each other. (Aspect 7). In another embodiment, hot melt bonding.
- the fiber bundle is opened (aspect 8).
- the fibers of the fiber bundle are crimped and raised, and the entire fiber bundle is softly spread like cotton. It becomes easy to entangle with.
- the fibers can flexibly contact the object to be cleaned, the object to be cleaned will not be damaged even if the cleaning member is pressed, and furthermore, the corner of the floor or furniture where dust is difficult to remove. Dust can be entangled by allowing fibers to enter a narrow portion such as a corner portion.
- the present invention includes a fiber opening step for opening the fiber bundle used for manufacturing the fiber member before the fiber bundle conveying step.
- a fiber opening step for opening the fiber bundle used for manufacturing the fiber member before the fiber bundle conveying step.
- means such as repeatedly applying and relaxing tension in the conveying direction or blowing air on the fiber bundle to be opened.
- the method further includes a cutting step of cutting the multilayer web in the width direction after the joining step (embodiment 9).
- a system for producing a cleaning member according to the present invention is a system for producing a cleaning member from a multilayer web formed by superimposing a fiber bundle and a belt-like nonwoven fabric, and superimposing the fiber bundle on the belt-like nonwoven fabric.
- a fiber bundle conveying device that continuously conveys toward the merging portion and a non-woven fabric conveying device that continuously conveys the belt-shaped nonwoven fabric toward the merging portion.
- the multilayer web forming device that forms the multilayer web by superimposing the fiber bundles conveyed by the fiber bundle conveying device and the belt-shaped nonwoven fabric conveyed by the nonwoven fabric conveying device at the joining portion; And a joining device that joins the fiber bundle and the strip-shaped nonwoven fabric in the multilayer web to each other.
- the said fiber bundle conveyance apparatus can convey the said fiber bundle with the tension
- the cleaning member manufacturing system according to the present invention is a system that is suitable for manufacturing a cleaning member excellent in cleaning performance and that can be manufactured efficiently.
- the fiber bundle conveying device that continuously conveys the fiber bundle toward the joining portion where the fiber bundle is overlapped with the belt-shaped nonwoven fabric, the fiber bundle is not included in the width of the fiber bundle. It can be conveyed with the tension of.
- the multilayer web forming apparatus for forming the multilayer web by superimposing the fiber bundle conveyed by the fiber bundle conveying device and the belt-shaped nonwoven fabric conveyed by the nonwoven fabric conveying device in the joining portion, A multilayer web can be formed by superimposing the fiber bundle on the belt-shaped nonwoven fabric while applying a tension that does not enter the width. Thereby, even when the tension on the multilayer web is released after the fiber bundle and the strip-shaped nonwoven fabric are joined by the joining device in the joining device, the fiber bundle constituting the multilayer web is contracted or crimped. The length does not change drastically.
- the cleaning member when manufacturing the cleaning member, it is easy to control the length of the fiber bundle, and the length of the fiber bundle relative to the length (width) of the nonwoven fabric can be set to a desired length.
- the fiber bundle is difficult to be cut when being overlapped with the belt-shaped nonwoven fabric in the multilayer web forming apparatus during conveyance, and further, for example, fused when the fiber bundle and the belt-shaped nonwoven fabric are bonded in the bonding device.
- High-speed productivity is excellent because it is difficult to cut (fuse) in some cases.
- the fiber bundle conveying device can convey the fiber bundle while bending the fiber bundle in the length direction (aspect 11).
- the fiber bundle transported by the fiber bundle transport device acts only about the tension caused by its own weight except when moving the fiber bundle in the transport direction
- the length in the width direction of the fiber bundle is It is possible to stably maintain a state in which the length in the width direction is maintained substantially constant without entering the width. Further, it is possible to prevent the fiber bundle from being unnecessarily opened due to the tension.
- aspect 10 it is preferable to further include a cutting device for cutting the multilayer web in the width direction (aspect 12).
- the system for manufacturing the cleaning member according to the present invention can include a device for opening the fiber bundle in order to open the fiber bundle.
- modes 10 to 12 can be combined.
- FIGS. 1 to 5 embodiments of the method and system for manufacturing a cleaning member according to the present invention will be described in more detail with reference to FIGS.
- the method and system for manufacturing the cleaning member according to the present invention are not limited to the embodiment of the present invention shown in FIGS. 1 to 5 within the scope of the object and the gist of the present invention. .
- FIG. 1 is a perspective view of the cleaning member 1 and a gripping tool 15 fixed to the cleaning member 1
- FIG. 2 is a sectional view taken along line XX of FIG. 1
- FIG. 3 is a cleaning shown in FIG. 3 is a plan view of the member 1.
- FIG. 1 “upper” in FIG. 2 may be referred to as the upper side, and “lower” may be referred to as the lower side. However, “upper” and “lower” in FIG. Yes, and does not limit the vertical direction of the cleaning member 1.
- the cleaning member 1 includes a raised portion 2, a base sheet 12 stacked above the raised portion 2, and a holding sheet 13 stacked above the base sheet 12. It has.
- the cleaning member 1 is formed with an insertion portion 14 for inserting the insertion portion 16 of the gripping tool 15 between the base sheet 12 and the holding sheet 13. .
- the cleaning member 1 is formed with two inserted portions 14 so that the inserting portion 16 branched into two can be inserted.
- the number of inserted portions 14 in this embodiment is two, the number of inserted portions 14 can be changed as appropriate according to the number of branches of the inserting portion 16.
- Another embodiment includes an embodiment in which the number of inserted portions 14 is three or more.
- the raised portion 2 includes a first fibrous member 3, a second fibrous member 4 stacked on the lower side of the first fibrous member 3, and a lower portion of the second fibrous member 4.
- a four-layered fibrous member composed of a third fibrous member 5 stacked on the side and a fourth fibrous member 6 stacked on the lower side of the third fibrous member 5, and a fiber of this four-layered structure And a strip sheet 7 stacked on the lower side of the cylindrical member (the lower side of the fourth fibrous member 6).
- the fibrous member of the raised portion 2 in the present embodiment has a four-layer structure, the layer structure of the fibrous member can be changed as appropriate.
- Another embodiment includes an embodiment in which the layer structure of the fibrous member is a one-layer structure, a two-layer structure, or a three-layer structure, and as another embodiment, the layer structure of the fibrous member has five or more layers. Embodiments that are structures are mentioned. Moreover, although the raising part 2 in this embodiment is provided with the strip sheet 7, the presence or absence of the strip sheet 7 can be selected suitably. As another embodiment, an embodiment in which the strip sheet 7 is omitted can be cited.
- the first to fourth fibrous members 3 to 6 are fiber bundles to which an oil agent is attached, and are dusting oil agents (for example, oil agents mainly composed of liquid paraffin) that promote the adsorption of dust, dust and the like. is there.
- dusting oil agents for example, oil agents mainly composed of liquid paraffin
- the fiber bundle is, for example, tow (TOW), preferably opened tow.
- TOW tow
- Tow means a bundle of extremely large numbers of filaments as described in JIS L 0204-3: 1998 3.1.24.
- the fiber bundle may be a bundle of slit fibers (fibers made by cutting and stretching a thin film), split fibers (fibers made by dividing an elongated film into a network structure), and the like.
- the fiber bundle examples include a fiber bundle made of thermoplastic fibers and a fiber bundle containing thermoplastic fibers.
- the raw material of the fiber constituting the fiber bundle include polyethylene, polypropylene, polyethylene terephthalate, nylon, rayon, and the like.
- the fiber constituting the fiber bundle include a single fiber and a composite fiber ( For example, a core-sheath type composite fiber, a side-by-side type composite fiber) and the like can be mentioned.
- the composite fiber is preferably a core-sheath type composite fiber from the viewpoint of heat-fusibility, and more preferably a core-sheath type composite fiber having a melting point of the core higher than that of the sheath.
- Preferable core-sheath type composite fibers include, for example, core-sheath type composite fibers in which the core is made of polypropylene or polyethylene terephthalate and the sheath is made of polyethylene. Further preferable core-sheath type composite fibers include, for example, polyethylene in the core. A core-sheath type composite fiber made of terephthalate and having a sheath made of polyethylene can be mentioned.
- the fineness of the fibers constituting the fiber bundle is preferably 1 to 50 dtex, more preferably 2 to 10 dtex.
- the fiber bundle may include a plurality of types of fibers having the same fineness, or may include a single type or a plurality of types of fibers having different finenesses.
- each fiber constituting the fiber bundle is composed of crimped fibers.
- the fiber bundle can be made bulky, and a structure in which dust, dust, etc. can be easily taken into the crimped portions can be obtained.
- an embodiment in which each fiber constituting the fiber bundle is constituted by non-crimped fibers can be mentioned.
- the strip sheet 7 is formed of a nonwoven fabric made of thermoplastic fibers (heat-fusible fibers), or a nonwoven fabric containing thermoplastic fibers, like the base sheet 12 and the holding sheet 13. 12 is formed in a rectangular shape having substantially the same width and length as those.
- the strip sheet 7 is provided with sawtooth-shaped cuts (not shown) at predetermined intervals over the entire strip sheet 7, and this cut cuts the entire length of both edges in the width direction of the strip sheet 7.
- a strip (not shown) having serrated edges is formed.
- a base sheet 12 and a holding sheet 13 are sequentially stacked on the upper side of the first fibrous member 3 of the raised portion 2, and between the base sheet 12 and the holding sheet 13. A portion to be inserted 14 for inserting the insertion portion 16 of the gripping tool 15 is formed.
- the base sheet 12 and the holding sheet 13 have a rectangular shape, and both the sheets 12 and 13 are set to have the same dimension in the width direction (left and right direction in FIG. 3).
- the length of the base sheet 12 is set to be longer in the length direction (vertical direction in FIG. 3).
- the holding sheet 13 is stacked on the upper side of the base sheet 12 so that both ends of the base sheet 12 in the longitudinal direction protrude outward from the both ends of the holding sheet 13 by a predetermined length.
- the base sheet 12 and the holding sheet 13 are formed of a nonwoven fabric made of thermoplastic fibers (heat-fusible fibers) or a nonwoven fabric containing thermoplastic fibers.
- thermoplastic fiber include polyethylene fiber, polypropylene fiber, polyethylene terephthalate fiber, composite fiber of polyethylene and polyethylene terephthalate, composite fiber of polyethylene and polypropylene, for example, the core is made of polyethylene terephthalate, and the sheath is made of polyethylene. And core-sheath type composite fiber.
- the nonwoven fabric include thermal bond nonwoven fabric, spunbond nonwoven fabric, and spunlace nonwoven fabric.
- Another embodiment includes an embodiment in which the base sheet and the holding sheet are formed from a thermoplastic resin film, for example, a polyethylene film or a polypropylene film, and as yet another embodiment, the base sheet and the holding sheet are The embodiment formed from the laminate sheet of a nonwoven fabric and a resin film is mentioned.
- a thermoplastic resin film for example, a polyethylene film or a polypropylene film
- the base sheet and the holding sheet are The embodiment formed from the laminate sheet of a nonwoven fabric and a resin film is mentioned.
- the base material sheet 12 and the holding sheet 13 are all layers (the first fibrous member 3, the second fibrous member 4, the third fibrous member 5, The fourth fibrous member 6 and the strip sheet 7) are integrally fused.
- the cleaning member 1 has a first melt extending in the longitudinal direction at the center in the width direction. A landing portion 8 is formed.
- the base sheet 12 and the holding sheet 13 are formed on one side (first fiber) of the raised portion 2 by the second fused portion forming device 134 described later on both sides (left and right in FIG. 2) of the first fused portion 8. And is fused integrally with the member 3).
- the cleaning member 1 is formed with two second fusion portions 11 that extend in the longitudinal direction and fuse the base sheet 12, the holding sheet 13, and the first fibrous member 3.
- Each of the two second fusion parts 11 is formed intermittently.
- the raised portion 2 becomes easier to spread.
- the raised portion 2 is likely to come into contact with dust, so that the dust is easily entangled and caught, and as a result, the cleaning efficiency is improved.
- the base sheet 12 and the holding sheet 13 are formed in the first fused portion 8 in the entire layer of the raised portion 2 (first fibrous member 3, second fibrous member 4, third fibrous member 5, fourth fibrous shape.
- the two second fused portions 11 are fused with the first fibrous member 3 of the raised portion 2.
- the base sheet 12 and the holding sheet 13 are partitioned by the first fusion part 8 and the two second fusion parts 11, and the longitudinal direction of the base sheet 12 and the holding sheet 13 is defined.
- a pair of bag-like spaces that are open at both ends in the longitudinal direction are formed, and these spaces serve as the pair of inserted portions 14. Therefore, the insertion portion 16 of the gripping tool 15 can be inserted into the bag-like interior of the pair of inserted portions 14.
- the base sheet 12 and the holding sheet 13 are fused at the center portion of the first fibrous member 3 of the raised portion 2 by a second fused portion forming device 134 described later. That is, as shown in FIG. 3, the cleaning member 1 is formed with a pair of fusion wires 18 at a predetermined interval in the width direction of the base sheet 12 and the holding sheet 13. A first fusion part 8 is formed between the lines 18.
- the pair of fusion lines 18 is a mark for managing the position of the first fusion part 8 in the manufacturing stage, and is the first fusion part 8 disposed between the pair of thermal fusion lines 18? By managing whether or not with a sensor or the like, it is possible to sort out non-defective products and defective products.
- the two second fusion portions 11 are provided intermittently in the longitudinal direction of the base sheet 12 and the holding sheet 13, and the two second fusion portions 11 are provided.
- a plurality of arc-shaped protrusions 16 a provided on the outer side of each insertion portion 16 of the gripping tool 15 can be locked to the non-fused portion of the portion 11. Thereby, each insertion part 16 of the gripping tool 15 is prevented from coming out of each inserted part 14.
- both edge portions in the width direction of the base sheet 12 and the holding sheet 13 are arranged at predetermined intervals along the longitudinal direction.
- a sawtooth-shaped notch 20a is provided, and a plurality of strips 20 having both serrated edges are provided by the notch 20a.
- Another embodiment includes an embodiment in which the base sheet 12 and the holding sheet 13 are not provided with the sawtooth-shaped cuts 20a, and thus the strip pieces 20 are not provided.
- the gripping tool 15 includes a pair of rectangular plate-like insertion portions 16 arranged in parallel to each other, and side surfaces located on the outer sides at both ends in the short direction of each insertion portion 16. It has a pair of protruding arc-shaped projections 16a and a holder portion 17 provided integrally with one end of the insertion portion 16, and is made of, for example, plastic.
- both insertion portions 16 of the gripping tool 15 By inserting both insertion portions 16 of the gripping tool 15 into both insertion portions 14 of the cleaning member 1 and engaging the protrusions 16 a with the non-fused portions of the two second fusion portions 11, the gripping tool 15.
- the cleaning member 1 is attached. Then, by holding the holder portion 17 of the gripping tool 15 and bringing the raised portion 2 into contact with the site to be cleaned and moving it in a desired direction, dust, dust, etc. at the location to be cleaned are captured by the raised portion 2, The part to be cleaned is cleaned.
- the cleaning member shown in FIGS. 1 to 3 is an example of a cleaning member that can be manufactured using the method and system for manufacturing the cleaning member according to the present invention, and the method for manufacturing the cleaning member according to the present invention and
- 2007-135774 No. 2007-209460, No. 2007-209461, No. 2007-029136, No. 2007-111297, No. 2007-135666, No. 2007-136156, No. 2007-136156 2007-159612, 2007-236690, 2008-006260, 2008-119171 and 2007-029135 can be used to manufacture the cleaning member, and refer to these publications. Which is incorporated herein by reference.
- the manufacturing method of the cleaning member of this indication, and the manufacturing system of a cleaning member are US6,554,937B, US2002 / 148061A, US2003 / 000034A, US2004 / 0149095A, US2005 / 0005381A, US2005 / 039285A, US2005 / 097695A, for example.
- FIG. 4 is a schematic view for explaining a method and an apparatus for manufacturing the cleaning member 1.
- a method for manufacturing the cleaning member 1 is performed using the apparatus 100 shown in FIG. 4. .
- the method for manufacturing the cleaning member 1 includes the following step 1 and step 2.
- step 1 The step of opening the fiber bundle to the step of carrying it and the step of carrying the belt-like nonwoven fabric
- Step 2 A multilayer web is manufactured using the fiber bundle, and the cleaning member 1 is cut out from the multilayer web (cut) Process)
- step 1 includes the following step 1a and step 1b.
- Step 1a Step of opening first fiber bundle F1 to fourth fiber bundle F4
- Step 1b Fiber bundle transporting step of transporting first fiber bundle F1 to fourth fiber bundle F4
- Step 1c Non-woven fabric transporting process for transporting the strip-shaped non-woven fabrics 121 and 123 toward the joining portion with the fiber bundle F1.
- the step 1 includes the step 1a, but the presence or absence of the step 1a can be appropriately selected depending on the type of fiber bundle to be used.
- Another embodiment includes an embodiment in which step 1a is omitted. For example, when the fiber bundle is composed of non-crimped fibers, step 1a can be omitted.
- Step 1a Hereinafter, the step 1a will be described by taking the step of opening the first fiber bundle F1 as an example, but the steps of opening the other fiber bundles F2 to F4 are similarly performed.
- the first fiber bundle F1 composed of crimped fibers is continuously drawn out from a storage container (not shown) and sent to the first nip rolls 102a and 102b that rotate at a constant peripheral speed V1.
- the first fiber bundle F1 that has passed through the first nip rolls 102a and 102b passes through the plurality of tension rolls 104 and is sent to the second nip rolls 106a and 106b that rotate at the peripheral speed V2.
- the peripheral speed V2 of the second nip rolls 106a and 106b is faster than the peripheral speed V1 of the first nip rolls 102a and 102b. Due to the difference in peripheral speed, tension is applied to the first fiber bundle F1 between the first nip rolls 102a and 102b and the second nip rolls 106a and 106b, and as a result, the first fiber bundle F1 is Opened.
- Each tension roll 104 is made of, for example, solid steel, and its mass is adjusted so that a considerable amount of force is required for rotation. Therefore, when the first fiber bundle F1 advances from the first nip rolls 102a and 102b toward the second nip rolls 106a and 106b while rotating the tension rolls 104, the rotation speed of each tension roll 104 increases rapidly. This prevents the movement speed of the first fiber bundle F1 from increasing rapidly.
- Each tension roll 104 is disposed so that the stroke between the first nip rolls 102a and 102b and the second nip rolls 106a and 106b becomes long so that the first fiber bundle F1 can be gradually opened. .
- the first fiber bundle F1 that has passed through the second nip rolls 106a and 106b passes through the air supply device 108 and is sent to the third nip rolls 112a and 112b that rotate at the peripheral speed V3.
- the peripheral speed V3 of the third nip rolls 112a and 112b is slower than the peripheral speed V2 of the second nip rolls 106a and 106b. Due to the difference in peripheral speed, the second nip rolls 106a and 106b and the third nip rolls 112a and 112b are more different than between the first nip rolls 102a and 102b and the second nip rolls 106a and 106b.
- the tension of the first fiber bundle F1 is relaxed, and as a result, the first fiber bundle F1 is further opened and the width of the first fiber bundle F1 is widened.
- Air is blown from the air supply unit 108 to the first fiber bundle F1 sent from the second nip rolls 106a and 106b to the third nip rolls 112a and 112b. As a result, the first fiber bundle F1 is further opened. Is done.
- the opening method can be appropriately changed.
- Another embodiment includes an embodiment in which any one of application and relaxation of tension and air blowing is used.
- Embodiments in which other fiber-opening methods are used are mentioned.
- the first to third nip rolls are used for tension application and relaxation, but the number of nip rolls can be changed as appropriate.
- Another embodiment includes an embodiment in which other nip rolls are used in addition to the first to third nip rolls for tension application and relaxation.
- An oil tank 114 is provided on the downstream side in the transport direction from the position of the air supply unit 108 between the second nip rolls 106a and 106b and the third nip rolls 112a and 112b.
- the oil agent in the oil agent tank 114 is transferred and applied to the first fiber bundle F1 sprayed by the transfer roll 110.
- the oil agent contained in the oil agent tank 114 is a dusting oil agent (for example, an oil agent mainly composed of liquid paraffin) that has an effect of promoting adsorption of dust, dust and the like. It is not always necessary to transfer and apply the oil agent in the oil agent tank 114.
- Step 1b the step 1b will be described by taking the fiber bundle conveying step for the first fiber bundle F1 as an example, but the conveying steps for the other fiber bundles F2 to F4 are similarly performed.
- a fiber bundle conveyance device having a conveyance roll provided in (1) is used. Then, the first fiber bundle F1 is conveyed from the third nip rolls 112a and 112b toward the fourth nip rolls 201a and 201b, which are the joining portion 132, via the conveyance rolls.
- the first fiber bundle F1 is conveyed in a relaxed state between the third nip rolls 112a and 112b and the fourth nip rolls 201a and 201b. Further, the transport roll 210 transports while supporting the slack portion of the first fiber bundle F1.
- the slackness of the first fiber bundle is, for example, that the first fiber bundle F1 is made longer than the distance between the third nip rolls 112a and 112b and the fourth nip rolls 201a and 201b. It is formed by feeding out from the nip rolls 112a and 112b in advance.
- the first fiber bundle F1 acts only on its own weight and the minimum tension necessary for conveyance, and the first nip rolls 102a, 102b to the third nip roll 112a. , 112b such as the tension between the fibers 112b is not applied. Therefore, in this fiber bundle conveying step, the first fiber bundle F1 does not enter into the width due to the tension, and the progress of the fiber opening is also suppressed.
- the first fiber bundle F1 is conveyed to the merging portion 132, and the second to fourth fiber bundles F2 to F4 are also conveyed to the merging portions 136, 138, and 140 after passing through the step 1b, respectively. Will be.
- step 1c the belt-shaped nonwoven fabrics 121 and 123 to be overlapped at the merged portion with the fiber bundle that has undergone step 1b are conveyed toward the merged portion.
- the strip-shaped non-woven fabrics 121 and 123 correspond to the base sheet 12 and the holding sheet 13 of the cleaning member 1, respectively, and as a multi-layer web S1 formed by overlapping these strip-shaped non-woven fabrics as described below, Transport to 132.
- the strip-shaped non-woven fabric 121 is continuously unwound from the non-woven fabric roll 120 and includes a plurality of rolls arranged in two upper and lower stages. The roll located in the lower stage is intermittently passed through a dancer roll 124 that swings up and down. Is conveyed.
- the strip-shaped nonwoven fabric 123 is continuously unwound from the nonwoven fabric roll 122, includes a plurality of rolls arranged in two upper and lower stages, and passes through a dancer roll 126 in which the lower roll swings up and down. It is conveyed intermittently.
- “intermittently conveyed” means that the strip-shaped nonwoven fabrics 121 and 123 advance in the conveying direction by a certain distance (for example, approximately the width in the width direction of the cleaning member 1) and stop conveying for a certain time. It means to be transported repeatedly. In this way, by intermittently transporting the strip-shaped nonwoven fabrics 121 and 123, the multilayer web stop time for fusing the components of the multilayer web in the joining step described later can be secured.
- the belt-shaped nonwoven fabrics 121 and 123 form a multilayer web S1 composed of two strip-shaped nonwoven fabrics by a pair of nonwoven fabric nip rolls 129a and 129b for the belt-shaped nonwoven fabric at the junction 128 while maintaining a constant tension.
- a saw-tooth shaped blade (not shown) passes through a gather cutter 130 formed intermittently in the circumferential direction on the surface thereof. Thereby, the notch corresponding to the notch 20a (refer FIG. 1) of the base material sheet 12 and the holding sheet 13 is formed.
- the multilayer web S1 advances to the junction part 132, maintaining a fixed tension
- the step 2 includes the following steps 2a to 2c.
- Step 2a A multi-layer web forming step in which the fiber bundle that has undergone step 1b is overlapped with a strip-shaped non-woven fabric to form a multi-layer web
- Step 2b a bonding step in which the fiber bundle contained in the multi-layer web and the strip-shaped non-woven fabric are bonded 2c
- step 2a the fiber bundle which passed through the process 1b and the strip
- Another embodiment includes an embodiment in which one or two of these strip-shaped nonwoven fabrics are overlapped with the fiber bundles that have undergone step 1b, and as another embodiment, in addition to these strip-shaped nonwoven fabrics, An embodiment in which the belt-shaped nonwoven fabric is overlapped with the fiber bundle that has undergone step 1b is given.
- the stacking order is not particularly limited, but it is preferable to stack the belt-shaped nonwoven fabric so as to be positioned in the outermost layer.
- the strip-shaped nonwoven fabrics 121 and 123 correspond to the base material sheet 12 and the holding sheet 13 of the cleaning member 1, respectively.
- the strip-shaped non-woven fabric 121 is continuously unwound from the non-woven fabric roll 120 and includes a plurality of rolls arranged in two upper and lower stages. The roll located in the lower stage is intermittently passed through a dancer roll 124 that swings up and down. Is conveyed.
- the strip-shaped nonwoven fabric 123 is continuously unwound from the nonwoven fabric roll 122, includes a plurality of rolls arranged in two upper and lower stages, and passes through a dancer roll 126 in which the lower roll swings up and down. It is conveyed intermittently.
- intermittently conveyed means that the strip-shaped nonwoven fabrics 121 and 123 advance in the conveying direction by a certain distance (for example, approximately the width in the width direction of the cleaning member 1) and stop conveying for a certain time. It means to be transported repeatedly.
- belt-shaped nonwoven fabric 121,123 is intermittently conveyed, The time for fuse
- the belt-like nonwoven fabrics 121 and 123 form a multilayer web S1 composed of two belt-like nonwoven fabrics by a pair of nip rolls at the joining portion 128 while maintaining a constant tension, and the multilayer web S1 is a sawtooth blade (not shown). Passes through a gather cutter 130 formed intermittently in the circumferential direction on the surface. Thereby, the notch corresponding to the notch 20a (refer FIG. 1) of the base material sheet 12 and the holding sheet 13 is formed. And the multilayer web S1 advances to the junction part 132, maintaining a fixed tension
- the multilayer web S1 merges with the first fiber bundle F1 that has undergone step 1 and is not subjected to tension at the merge section 132.
- the multilayer web S2 is formed by overlapping the multilayer web S1 and the first fiber bundle F1.
- the multilayer web forming apparatus that forms the multilayer web S2 is the fourth nip rolls 201a and 201b that superimpose the multilayer belt-shaped nonwoven fabric that is the multilayer web S1 and the first fiber bundle F1, A gap between the rolls of the fourth nip rolls 201a and 201b is substantially a junction point 132.
- FIG. 5 shows a stack of the first fiber bundle F1 conveyed by the fiber bundle conveying step and the multilayer web S1 formed by the strip-shaped nonwoven fabrics 121 and 123 and conveyed by the nonwoven fabric conveying step.
- the state in the multilayer web formation process to form is shown.
- the first fiber bundle F1 transported in the fiber bundle transporting process is formed upstream of the fourth nip rolls 201a and 201b, which are the junction 132, that is, the multilayer web S2. Before, it is conveyed in a slack state to some extent.
- the multilayer web S1 (band-shaped nonwoven fabric) conveyed by the nonwoven fabric conveying step is conveyed to the junction 132 in a state where a tension that does not sag and does not enter the width is applied. Furthermore, after the first fiber bundle F1 and the multilayer web S1 are overlapped by the fourth nip rolls 201a and 201b to form the multilayer web S2, the slackness of the fiber bundle is eliminated. The acting tension is maintained at such a level that it still does not fall. Moreover, the magnitude
- the multi-layer web S2 composed of the first fiber bundle F1 and the multi-layer web S1 is a device relating to the subsequent joining process in a state where a tension that does not allow for the insertion of the width is applied as a whole. It will be conveyed to the forming apparatus 134.
- the tension that does not enter the width is maintained even after the multilayer web S2 is formed, while maintaining the tension that does not enter the width due to the slack, before the multilayer web S2 is formed.
- the opening of the first fiber bundle F1 is suppressed during and after the formation, and the length of the first fiber bundle F1 can be easily controlled.
- a large tension is applied so that the fiber spreads as much as it is loosened. Is deterred.
- the multilayer web S2 is temporarily secured to secure the fusion time. Accordingly, the transport of the first fiber bundle F1 is also temporarily stopped. However, the first fiber bundle is stopped because there is no problem even if slack is formed by the stop of the transport. Sufficient time can be secured. Therefore, it is possible to secure a time for joining while maintaining a tension that does not enter the width.
- the multilayer web S2 is sequentially joined with the second fiber bundle F2 to the fourth fiber bundle F4 that have passed through the process 1 at the joining portions 136, 138, and 140, and the second fiber bundle F2 to the second fiber bundle F2 is joined to the multilayer web S2.
- the four fiber bundles F4 are sequentially overlapped to form the multilayer web S3.
- in the junction part 136,138,140 with respect to the multilayer web S2 by each of a pair of nip roll 202a, 202b, 203a, 203b, 204a, 202b as a multilayer web formation apparatus.
- the second fiber bundle F2 to the fourth fiber bundle F4 are sequentially overlapped to form the multilayer web S3.
- the belt-shaped nonwoven fabric 151 corresponding to the strip sheet 7 of the cleaning member 1 is overlapped with the multilayer web S3 at the junction 156, separately from the belt-shaped nonwoven fabric 121 and 123 described above.
- a multilayer web S4 is formed.
- the strip-shaped nonwoven fabric 151 is transported by a nonwoven fabric transport device formed by various rolls in the nonwoven fabric transport process for the strip-shaped nonwoven fabric 151. That is, in the nonwoven fabric conveyance process for the strip-shaped nonwoven fabric 151, it is continuously unwound from the nonwoven fabric roll 150, is intermittently conveyed by passing through the dancer roll 152, and passes through the gather cutter 154.
- the gather cutter 154 has a saw-tooth shaped blade (not shown) continuous in the circumferential direction on the surface thereof, so that a saw-tooth-like cut (not shown) is formed in the strip-shaped nonwoven fabric 151 that has passed the gather cutter 154. It is formed. And the strip
- the multilayer web S2 passes through the second fusion part forming device 134 as a joining device used in the joining step before joining the second fiber bundle F2 to the fourth fiber bundle F4.
- the second fusion part forming device 134 fuses the strip-shaped nonwoven fabrics 121 and 123 and the first fiber bundle F1 included in the multilayer web S2 to form two second fusion parts 11 (see FIG. 3). To do. Thereby, the multilayer web S2 is melt
- a heat seal device is used as the second fusion part forming device 134, but other seal devices (for example, an ultrasonic seal device or the like) may be used.
- the multilayer web S4 passes through a first fusion part forming device 158 as a joining device.
- the first fusion part forming device 158 fuses the entire multilayer web S4 to form the first fusion part 8 (see FIG. 3 and the like) on the multilayer web S4. Thereby, the multilayer web S4 is fused over the thickness direction.
- a heat seal device is used as the first fusion part forming device 154, but the fusion part forming device can be appropriately changed.
- Another embodiment includes an embodiment in which an ultrasonic sealing device is used.
- step 2c The multilayer web S4 that has passed through the first fusion part forming device 158 is cut in the width direction of the multilayer web S4 by the cutting device 160 provided with a cutter, whereby the individual cleaning members 1 are cut out.
- the cleaning member 1 manufactured according to the present embodiment includes the strip sheet 7, but the cleaning member manufactured according to another embodiment does not include the strip sheet 7. Moreover, in the cleaning member 1 manufactured by this embodiment, although the to-be-inserted part 14 is located in the surface of the cleaning member 1, the cleaning member manufactured by another embodiment is the base material sheet 12 and the holding sheet 13. And the fibrous members 3 to 6 are changed in the stacking order, the inserted portion 14 is disposed between any of the adjacent fibrous members 3 to 6. Thereby, it can clean using both surfaces of the cleaning member 1.
- FIG. At this time, in order to facilitate the insertion of the insertion portion 16 into the insertion portion 14, the length of the base sheet 12 and the holding sheet 13 in the longitudinal direction (vertical direction in FIG. 3) is determined from the fibrous members 3-6. It is preferable to make the length longer, and these dimensions can be arbitrarily determined. At this time, the strip sheet 7 may or may not be used, and the strip sheet 7 may be disposed on both surfaces of the cleaning member 1.
- 2013-002855 filed in Japan on January 10, 2013 and a US application claiming priority thereof, ie, US Patent Application No. 13 / 749,717, and (13) Japanese Patent Application No. 2013-002857 filed in Japan on January 10, 2013, and US application claiming priority thereof, ie, US Patent Application No. 13 / 749,715.
Landscapes
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
一方、上記解題を解決するため、本発明の清掃部材の製造システムは、繊維束と帯状不織布とを重ね合わせることにより形成された複層ウェブから清掃部材を製造するシステムであって、前記繊維束を、前記帯状不織布と重ね合わせる合流部に向けて連続的に搬送する繊維束搬送装置と、前記帯状不織布を前記合流部に向けて連続的に搬送する不織布搬送装置と、前記繊維束搬送装置によって搬送された繊維束と、前記不織布搬送装置によって搬送された帯状不織布とを前記合流部において重ね合わせることにより前記複層ウェブを形成する複層ウェブ形成装置と、前記複層ウェブ中の繊維束と帯状不織布とを相互に接合する接合装置とを含み、前記繊維束搬送装置は、前記繊維束を、該繊維束が幅入りしない程度の張力で搬送可能であると共に、前記複層ウェブ形成装置は、前記繊維束を前記幅入りしない程度の張力を作用させながら前記帯状不織布と重ね合わせて複層ウェブを形成可能であるものである。
以下、本発明による清掃部材を製造する方法について、詳細に説明する。
そして、前記繊維束搬送工程において、前記繊維束を、該繊維束が幅入りしない程度の張力で搬送すると共に、前記複層ウェブ形成工程おいて、前記繊維束を前記幅入りしない程度の張力が作用した状態で前記帯状不織布と重ね合わせて複層ウェブを形成する(態様1)。
ここで、本発明における「幅入り」とは、繊維束や帯状不織布、複層ウェブ等の搬送対象物が、搬送方向(長さ方向)に引っ張られることにより該搬送方向と直交する方向の長さ、即ち幅方向の長さが小さくなることを意味する。
本発明による清掃部材の製造方法は、前記繊維束搬送工程において、前記繊維束を該繊維束が幅入りしない程度の張力で搬送し、且つ前記複層ウェブ形成工程において、前記繊維束を前記幅入りしない程度の張力が作用した状態で前記帯状不織布と重ね合わせて複層ウェブを形成する。
これにより、前記接合工程後に複層ウェブに対する張力を解除した場合であっても、該複層ウェブを構成する繊維束が、幅入りからの回復の反動で大幅に収縮したり捲縮したりすることが抑止されるため、長さが極端に変化することがない。そのため、清掃部材を製造に際して、繊維束の長さの制御を行い易く、不織布の長さ(幅)に対する繊維束の長さを所望の長さとすることが可能となる。
また、前記繊維束が、搬送時、あるいは帯状不織布との重ね合わせの際に切断されにくく、さらには、繊維束と帯状不織布とを接合する際、例えば融着する場合等において切断(溶断)されにくいため高速生産性に優れる。
また、態様1又態様2では、前記繊維束を搬送する繊維束搬送工程において、前記繊維束は略直線的に搬送することが好ましい(態様3)。態様3によれば、清掃部材の高速生産性に優れ、効率的に清掃部材を製造することができる。ここで、繊維束をほぼ直線的に搬送するとは、繊維束の蛇行を抑止しながら該繊維束を搬送することをいう。
この場合において、前記繊維束を蛇行しないように搬送するため、繊維束を搬送方向に移動させる際に該繊維束にある程度の張力を作用させる。本発明においては、基本的に、繊維束に繊維束が幅入りしない程度の張力を作用させているため、繊維束を搬送方向に移動させる際には該繊維束は搬送方向に直線的に適正に引っ張られ、繊維束は蛇行が抑えられた状態で直線的に搬送することが可能である。
この不織布搬送工程では、前記帯状不織布を蛇行しないように搬送するため、該帯状不織布にある程度の張力、例えば、帯状不織布が幅入りしない程度の張力を作用させながら該帯状不織布を搬送することが好ましい。
上述のように、本発明においては、繊維束搬送工程では、前記繊維束を、該繊維束を幅入りしない程度の張力で搬送しているため、前記繊維束搬送工程においては、繊維束が幅入りすることなく、幅方向長さを常時ほぼ一定に保ちながら該繊維束を搬送することが可能である。これにより、この繊維束搬送工程においては、必要以上の張力が作用することによる繊維束の開繊の進行が可及的に抑えられ、該繊維束の長さや起毛具合等の管理、さらに複層ウェブ全体としての寸法の管理が容易となる。
前記帯状不織布に搬送方向への張力によって幅入りが生じている場合、後工程において前記帯状不織布に対する張力を解除すると、該帯状不織布の幅入り解消されて幅方向長さ及び搬送方向(長さ方向)の長さが大きく変化する可能性があるため、帯状不織布の寸法の制御、管理が困難となる。したがって、この態様6によれば、帯状不織布に幅入りが生じていないため、張力を解除した後であっても搬送方向の長さや幅方向の長さの変動が小さく、帯状不織布の寸法の制御や管理、さらに複層ウェブ全体としての寸法の管理が容易となる。
ここで、清掃部材の製造に際して、開繊された繊維束を用いるため、本発明においては、前記繊維束搬送工程の前に、繊維部材の製造に用いる繊維束を開繊する開繊工程を含むことができる。具体的には、開繊する繊維束に対して、搬送方向に張力の付与と緩和とを繰り返したり、エアーを吹付けたりする等の手段を用いることができる。
以下、本発明による清掃部材の製造システムについて、詳細に説明する。
本発明による清掃部材の製造システムは、前記繊維束を、前記帯状不織布と重ね合わせる合流部に向けて連続的に搬送する繊維束搬送装置が、前記繊維束を、該繊維束が幅入りしない程度の張力で搬送可能である。また、前記繊維束搬送装置によって搬送された繊維束と、前記不織布搬送装置によって搬送された帯状不織布とを前記合流部において重ね合わせることにより前記複層ウェブを形成する複層ウェブ形成装置が、前記繊維束を前記幅入りしない程度の張力を作用させながら前記帯状不織布と重ね合わせて複層ウェブを形成可能である。
これにより、前記接合装置によって繊維束と帯状不織布とを接合装置において接合した後に複層ウェブに対する張力を解除した場合であっても、該複層ウェブを構成する繊維束が収縮したり捲縮したりすることが抑止されるため、長さが極端に変化することがない。
したがって、清掃部材を製造に際して、繊維束の長さの制御を行い易く、不織布の長さ(幅)に対する繊維束の長さを所望の長さとすることが可能となる。
また、前記繊維束が、搬送時、前記複層ウェブ形成装置において帯状不織布との重ね合わせる際に切断されにくく、さらには、繊維束と帯状不織布とを接合装置において接合する際、例えば融着する場合等において切断(溶断)されにくいため高速生産性に優れる。
また、態様10又は態様11において、複層ウェブを幅方向に切断する切断装置をさらに備えていることが好ましい(態様12)。
図1は、清掃部材1及び清掃部材1に固定される把持具15の斜視図であり、図2は、図1のX-X線における断面図であり、図3は図1に示される清掃部材1の平面図である。なお、以下の説明において、図2における「上」を上側とし、「下」を下側とする場合があるが、図2における「上」及び「下」は、単に説明の便宜上用いられるものであり、清掃部材1の上下方向を限定するものではない。
この繊維束を構成する繊維の原料としては、例えば、ポリエチレン、ポリプロピレン、ポリエチレンテレフタレート、ナイロン、レーヨン等が挙げられ、前記繊維束を構成する繊維の種類としては、例えば、単一繊維、複合繊維(例えば、芯鞘型複合繊維、サイドバイサイド型複合繊維)等が挙げられる。前記複合繊維は、熱融着性の点から、好ましくは、芯鞘型複合繊維であり、さらに好ましくは、芯の融点が鞘の融点よりも高い芯鞘型複合繊維である。
前記熱可塑性繊維としては、例えば、ポリエチレン繊維、ポリプロピレン繊維、ポリエチレンテレフタレート繊維、ポリエチレンとポリエチレンテレフタレートとの複合繊維、ポリエチレンとポリプロピレンとの複合繊維、例えば、芯がポリエチレンテレフタレートからなり、かつ鞘がポリエチレンからなる芯鞘型複合繊維等が挙げられる。前記不織布の種類としては、例えば、サーマルボンド不織布、スパンボンド不織布、スパンレース不織布等が挙げられる。
さらに、基材シート12及び保持シート13は、第1融着部8の両側(図2における左右)において、後述する第2融着部形成装置134によって、起毛部2の1層(第1繊維状部材3)と一体に融着されている。そして、清掃部材1には、基材シート12及び保持シート13と第1繊維状部材3とを融着する、長手方向に延びる2本の第2融着部11が形成されている。2本の第2融着部11は、それぞれ、間欠的に形成されている。このように、第1繊維状部材3が基材シート12及び保持シート13と融着されることにより、第1繊維状部材3がこれらのシート12、13の動きに追従するので、使用状態において起毛部2がより広がりやすくなる。この結果、起毛部2が塵埃と接触しやすくなるため、該塵埃を絡め捕りやすくなり、ひいては、清掃効率が改善される。
また、本開示の清掃部材の製造方法、及び清掃部材の製造システムは、例えば、US6,554,937B,US2002/148061A,US2003/0000934A,US2004/0149095A,US2005/0005381A,US2005/039285A,US2005/097695A,US2005/097696A,US2005/132521A,US2005/177967A,US2005/188490A,US2005/193513A,US2005/193514A,US2005/198760A,US2006/016035A,US2006/016036A,US2006/101601A,US2009/165230A及びUS2009/172904A,並びにUS2009/049633A,US2009/255078A及びUS2010/154156Aに記載の清掃部材を製造するために用いることができ、そしてこれらの公報を参照し、本明細書に組み入れる。
図4は、清掃部材1を製造する方法及び装置を説明するための概略図であり、本実施形態では、図4に示される装置100を用いて、清掃部材1を製造する方法が実施される。
[工程1]繊維束を開繊する工程~搬送する工程、及び帯状不織布を搬送する工程
[工程2]繊維束を用いて複層ウェブを製造し、複層ウェブから清掃部材1を切り出す(カットする)工程
以下、工程1について説明する。
本実施形態において、工程1は、以下の工程1a及び工程1bを含む。
[工程1a]第1の繊維束F1~第4の繊維束F4を開繊する工程
[工程1b]第1の繊維束F1~第4の繊維束F4を搬送する繊維束搬送工程
[工程1c]帯状不織布121,123を繊維束F1との合流部に向けて搬送する不織布搬送工程
以下、工程1aについて、第1の繊維束F1を開繊する工程を例として説明するが、その他の繊維束F2~F4を開繊する工程も同様に実施される。
本実施形態において、油剤槽114に含まれる油剤は、塵、埃等の吸着を促進させる作用をもたらす着塵油剤(例えば、流動パラフィンを主成分とする油剤)である。
なお、この油剤槽114による油剤の転写、塗布は必ずしも必要ではない。
以下、工程1bについて、第1の繊維束F1に対する繊維束搬送工程を例として説明するが、その他の繊維束F2~F4に対する搬送工程も同様に実施される。
このとき、第3のニップロール112a,112bと第4のニップロール201a,201bとの間においては、第1の繊維束F1は弛んだ状態で搬送される。また、搬送ロール210は第1の繊維束F1におけるその弛んだ部分を支持しながら搬送する。なお、この第1の繊維束の弛みは、例えば、第1の繊維束F1を、第3のニップロール112a,112bと第4のニップロール201a,201bとの間の距離よりも長めに、第3のニップロール112a,112bから事前に送り出しておくことにより形成する。そして、これらの第3のニップロール112a,112bと第4のニップロール201a,201bとの回転速度や回転のタイミング等を調整することにより、第1の繊維束F1の一定の弛みを維持することができる。
また、第3のニップロール112a,112bを通過すると、その後、第1の繊維束F1は合流部132までニップロール、張力ロール等を通過しない。
したがって、この繊維束搬送工程においては、第1の繊維束F1に対しては、自重や搬送に必要な最小限度の張力程度しか作用せず、第1のニップロール102a、102b~第3のニップロール112a、112b間の張力のような開繊が進む張力は加えられない。したがって、この繊維束搬送工程においては、第1の繊維束F1が張力によって幅入りすることはなく、また開繊の進行も抑えられる。
工程1cにおいては、工程1bを経た繊維束との合流部において重ね合わせる帯状不織布121,123をその合流部に向けて搬送する。
帯状不織布121,123は、それぞれ、清掃部材1の基材シート12,保持シート13に対応し、次に述べるようにこれらの帯状不織布を重ねわせることにより形成された複層ウェブS1として合流点132に搬送する。
帯状不織布121は、不織布ロール120から連続的に巻出され、上下2段に配設された複数のロールを含み、下段に位置するロールが上下に揺動するダンサロール124を通過することによって間欠的に搬送される。同様に、帯状不織布123は、不織布ロール122から連続的に巻出され、上下2段に配設された複数のロールを含み、下段に位置するロールが上下に揺動するダンサロール126を通過することによって間欠的に搬送される。なお、「間欠的に搬送される」とは、帯状不織布121,123が、一定の距離(例えば、ほぼ清掃部材1の幅方向長さ)だけ搬送方向に進み、一定時間搬送を停止することを繰り返し行うように搬送されることをいう。このように、帯状不織布121,123が間欠的に搬送されることによって、後述する接合工程において複層ウェブの構成要素を融着させるための該複層ウェブ停止時間を確保することができる。
以下、工程2について説明する。
本実施形態において、工程2は、以下の工程2a~工程2cを含む。
[工程2a]工程1bを経た繊維束を帯状不織布と重ねて複層ウェブを形成する複層ウェブ形成工程
[工程2b]複層ウェブに含まれる繊維束と帯状不織布とを接合する接合工程
[工程2c]複層ウェブを幅方向に切断して、複層ウェブから個々の清掃部材1を切り出す切断工程
以下、工程2aについて説明する。
本実施形態において、工程1bを経た繊維束と帯状不織布121,123とが重ね合わされる。別の実施形態として、これらの帯状不織布のうち1つ又は2つが、工程1bを経た繊維束と重ねられる実施形態が挙げられ、さらに別の実施形態として、これらの帯状不織布に加えて、その他の帯状不織布が、工程1bを経た繊維束と重ねられる実施形態が挙げられる。いずれの実施形態においても、積層順序は特に限定されるものではないが、帯状不織布が最外層に位置するように積層されることが好ましい。
この図5に示すように、繊維束搬送工程により搬送された第1の繊維束F1は、合流点132である第4のニップロール201a,201bよりも上流側、即ち複層ウェブS2が形成される前においては、ある程度弛んだ状態で搬送されている。一方で、不織布搬送工程により搬送された複層ウェブS1(帯状不織布)は、弛むことなく且つ幅入りしない程度の張力が作用した状態で合流点132に搬送される。
さらに、第4のニップロール201a,201bにより第1の繊維束F1と複層ウェブS1とを重ね合わせて複層ウェブS2を形成された後は繊維束の弛みは解消されるが、該繊維束に作用する張力は、依然として幅入りしない程度の大きさが維持される。また、複層ウェブS1についても、幅入りしない程度の大きさが維持される。
したがって、第1の繊維束F1と複層ウェブS1とからなる複層ウェブS2は、全体として幅入りしない程度の張力が作用した状態で後工程の接合工程に係る装置である第2融着部形成装置134に搬送されることとなる。
一方で、接合工程において複層ウェブS2構成を構成する第1の繊維束F1と帯状不織布(複層ウェブS1)との融着時、融着時間確保のために一時的に該複層ウェブS2の搬送一時停止するため、それに伴って前記第1の繊維束F1の搬送も一時停止するが、該第1の繊維束はその搬送の停止により弛みが形成されても全く問題がないため、停止時間を十分に確保することができる。したがって、幅入りしない程度の張力を維持しながら接合するための時間を確保することが可能となる。
なお、合流部136,138,140においては、図4に示すように、複層ウェブ形成装置としての一対のニップロール202a,202b、203a,203b、204a,202bのそれぞれにより、複層ウェブS2に対して第2の繊維束F2~第4の繊維束F4が順次重ね合わされ、複層ウェブS3が形成されることとなる。
帯状不織布151は、この帯状不織布151用の不織布搬送工程において、各種ロールにより形成される不織布搬送装置により搬送される。即ち、帯状不織布151用の不織布搬送工程では、不織布ロール150から連続的に巻出され、ダンサロール152を通過することによって間欠的に搬送され、ギャザーカッタ154を通過させる。ギャザーカッタ154は、その表面にその周方向に連続した鋸歯形状の刃(不図示)を有していて、これにより、ギャザーカッタ154を通過した帯状不織布151に鋸歯形状の切れ込み(不図示)が形成される。
そして、帯状不織布151は、合流部156において複層ウェブS3と合流し、一対のニップロールにより複層ウェブS3に帯状不織布151が重ねられ、複層ウェブS4が形成されることとなる。
以下、工程2bについて説明する。
複層ウェブS2は、第2の繊維束F2~第4の繊維束F4と合流する前に、前記接合工程において使用される接合装置としての第2融着部形成装置134を通過する。第2融着部形成装置134は、複層ウェブS2に含まれる帯状不織布121,123及び第1の繊維束F1を融着し、2本の第2融着部11(図3参照)を形成する。これにより、複層ウェブS2は、その厚さ方向にわたって融着される。本実施形態では、第2融着部形成装置134として、ヒートシール装置が使用されているが、その他のシール装置(例えば、超音波シール装置等)を使用してもよい。
以下、工程2cについて説明する。
第1融着部形成装置158を通過した複層ウェブS4が、カッターを備えた切断装置160により複層ウェブS4の幅方向に切断され、これにより個々の清掃部材1が切り出される。
(1)2012年12月29日に日本国に出願された特願2012-289181号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,721号、
(2)2012年12月29日に日本国に出願された特願2012-289182号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,719号、
(3)2012年12月29日に日本国に出願された特願2012-289174号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,716号、
(4)2012年12月29日に日本国に出願された特願2012-289189号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,724号、
(5)2012年12月29日に日本国に出願された特願2012-289175号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,723号、
(6)2012年12月29日に日本国に出願された特願2012-289188号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,722号、
(7)2012年12月29日に日本国に出願された特願2012-289179号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,726号、
(8)2012年12月29日に日本国に出願された特願2012-289177号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,718号、
(9)2012年12月29日に日本国に出願された特願2012-289184号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,725号、
(10)2012年12月29日に日本国に出願された特願2012-289178号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,714号、
(11)2012年12月29日に日本国に出願された特願2012-289176号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,713号、
(12)2013年1月10日に日本国に出願された特願2013-002855号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,717号、並びに
(13)2013年1月10日に日本国に出願された特願2013-002857号、及びその優先権を主張する米国出願、すなわち、米国特許出願第13/749,715号。
2 起毛部
3 第1繊維状部材
4 第2繊維状部材
5 第3繊維状部材
6 第4繊維状部材
7 短冊シート
8 第1融着部
11 第2融着部
12 基材シート
13 保持シート
14 被挿入部
15 把持具
16 挿入部
16a 突起
17 ホルダ部
18 融着線
20 短冊片
20a 切れ込み
100 清掃部材の製造装置
102a,b 第1のニップロール
104 張力ロール
106a,b 第2のニップロール
108 エアー供給器
110 転写ロール
112a,b 第3のニップロール
114 油剤槽
120,122,150 不織布ロール
121,123,151 帯状不織布
124,126,152 ダンサロール
128,132、136,138,140,156 合流部
130,154 ギャザーカッタ
134 第2融着部形成装置
158 第1融着部形成装置
160 切断装置
Claims (12)
- 繊維束と帯状不織布とを重ね合わせることにより形成された複層ウェブから得られる清掃部材を製造する方法であって、
前記繊維束を、前記帯状不織布と重ね合わせる合流部に向けて搬送する繊維束搬送工程と、
前記帯状不織布を前記合流部に向けて搬送する不織布搬送工程と、
前記繊維束搬送工程で搬送された繊維束と、前記不織布搬送工程で搬送された帯状不織布とを前記合流部において重ね合わせることにより前記複層ウェブを形成する複層ウェブ形成工程と、
前記複層ウェブ中の繊維束と帯状不織布とを相互に接合する接合工程とを含み、
前記繊維束搬送工程において、前記繊維束を、該繊維束が幅入りしない程度の張力で搬送すると共に、前記複層ウェブ形成工程おいて、前記繊維束を前記幅入りしない程度の張力が作用した状態で前記帯状不織布と重ね合わせて複層ウェブを形成する、清掃部材の製造方法。 - 前記繊維束搬送工程は、前記繊維束を搬送方向に弛ませながら搬送する、請求項1に記載の清掃部材の製造方法。
- 前記繊維束搬送工程において、前記繊維束を直線的に搬送する、請求項1又は請求項2に記載の清掃部材の製造方法。
- 前記不織布搬送工程において、前記帯状不織布を直線的に搬送する、請求項1~3のいずれか1項に記載の清掃部材の製造方法。
- 前記繊維束搬送工程において、前記繊維束の幅方向の長さを一定に維持しながら搬送する、請求項1~4のいずれか1項に記載の清掃部材の製造方法。
- 前記不織布搬送工程において、前記帯状不織布の幅方向の長さを一定に維持しながら搬送する、請求項1~5のいずれか1項に記載の清掃部材の製造方法。
- 前記接合工程は、繊維束と帯状不織布とを融着することにより相互に接合する、請求項1~6のいずれか1項に記載の清掃部材の製造方法。
- 前記繊維束は開繊されている、請求項1~7のいずれか1項に記載の清掃部材の製造方法。
- 前記接合工程の後に複層ウェブを幅方向に切断する切断工程を行う、請求項1~7のいずれか1項に記載の清掃部材の製造方法。
- 繊維束と帯状不織布とを重ね合わせることにより形成された複層ウェブから清掃部材を製造するシステムであって、
前記繊維束を、前記帯状不織布と重ね合わせる合流部に向けて連続的に搬送する繊維束搬送装置と、
前記帯状不織布を前記合流部に向けて連続的に搬送する不織布搬送装置と、
前記繊維束搬送装置によって搬送された繊維束と、前記不織布搬送装置によって搬送された帯状不織布とを前記合流部において重ね合わせることにより前記複層ウェブを形成する複層ウェブ形成装置と、
前記複層ウェブ中の繊維束と帯状不織布とを相互に接合する接合装置とを含み、
前記繊維束搬送装置は、前記繊維束を、該繊維束が幅入りしない程度の張力で搬送可能であると共に、前記複層ウェブ形成装置は、前記繊維束を前記幅入りしない程度の張力を作用させながら前記帯状不織布と重ね合わせて複層ウェブを形成可能である、清掃部材の製造システム。 - 前記繊維束搬送装置は、前記繊維束を長さ方向に弛ませながら搬送可能である、請求項10に記載の清掃部材の製造システム。
- 前記製造システムは、複層ウェブを幅方向に切断する切断装置を備えている、請求項10又は請求項11に記載の清掃部材の製造システム。
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US9919501B2 (en) | 2018-03-20 |
JPWO2014104351A1 (ja) | 2017-01-19 |
JP6116590B2 (ja) | 2017-04-19 |
US20150336366A1 (en) | 2015-11-26 |
US20140187406A1 (en) | 2014-07-03 |
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