TW200944171A - Cleaning sheet - Google Patents

Abstract

Disclosed is a cleaning sheet, in which a plurality of fibers (21) arrayed in one direction are constituted such that they are joined to each other by joint portions (22) and in which agglomerated fiber collecting bundles (20) having the fibers (21) extending from the joint portions (22) and opened are joined in plurality to at least one face of a backing sheet (11), thereby to form a cleaning portion (12). Also disclosed is a cleaning sheet, in which unopened short fiber bundles constituted by joining a plurality of fibers arrayed in one direction to each other by joint portions extending in a direction to intersect the extending direction of the fibers are joined in plurality to at least one face of the backing sheet, and in which the fibers extending in the unopened short fiber bundles from the joint portions are opened by cleaning a cleaning object face with the cleaning portion.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet which is particularly suitable for cleaning a hard surface or the like. [Prior Art] ‘A variety of fiber bundles having a spherical shape are known at present. For example, in the patent 'Document 1, a wadding comprising a spheroidal wool fiber and a wool fiber felt in an outer layer portion is described. The spheroidal wadding is produced by cutting the opened fiber I bristles into a predetermined length to form a fiber sheet 'clamping the fiber sheet between the opposite sides of the arrangement, and by When the two or both of the two surfaces are moved, the fiber sheet is rubbed to make the fiber sheet into a spherical shape, and the outer layer portion of the fiber sheet is humidified to make the outer layer portion of the spherical fiber sheet oblique. Patent Document 2 describes a cotton wadding for use in bedding or winter clothes. The cotton wool is produced by blowing a pearl cotton ball containing a main fiber and a binder fiber having a softening point lower than φ of the fiber to a quilt, and then heat-treating and integrating the same. Patent Document 3 describes a spherical fiber structure containing a wet heat spliced staple fiber - & thermoplastic crimped staple fiber. The spherical shape is formed. The portion of the fiber of the I-dimensional structure is made by moist heat-bonding of the staple fiber. The spherical fiber structure is produced by spreading a hybrid staple fiber containing a wet heat-bonded staple fiber and a thermoplastic crimped staple fiber onto a wire mesh, and spraying water mist thereon. After the metal is rolled and rotated, and then granulated, the granules are impregnated into the crucible by 137362.doc 200944171, and the aqueous granules are internally produced by boiling to form the granules. A large number of cell-shaped void portions are simultaneously heat-treated by a portion of the fibers constituting the granules by means of moist heat-bonded staple fibers. There is no mention of the above-mentioned documents, and the spherical fiber bundles described in these documents can be used as the material for cleaning sheets. The sheet for cleaning having a fiber assembly is known, for example, from Patent Document 4t. The cleaning sheet according to this document includes a heat-soluble sheet and a plurality of long-melting long fibers which are joined to the sheet and extend in one direction. The long fibers are joined to the thermally soluble sheet by a plurality of root-dissolving lines intermittently disposed along the longitudinal direction of the long fibers. When the cleaning sheet system captures dirt between the long fibers, since the long fibers are fixed by the melting line before and after, the degree of freedom of movement is limited to the fact that the fibers are reliably captured between the fibers. insufficient. Further, since the portion of the dissolution line does not trap dirt, the efficiency of capturing the dirt is not sufficient. Patent Document 5 describes a cleaning sheet similar to the cleaning sheet described in Patent Document 4. In the cleaning sheet system described in this document, a fiber bundle body obtained by extracting a plurality of fibers is joined to a base sheet body to form a cleaning portion. According to the document, the cleaning sheet can be sufficiently wiped off even for a large dirt of a certain range 2. However, in the cleaning sheet,

It is aligned in one direction, so there is a case where it is impossible to reliably capture the dirt due to the wiping direction. Patent Document 1: JP58-70758A 137362.doc 200944171 Patent Document 2: JP61-125377A Patent Document 3: JP2002-212868A Patent Document 4: US6,329,308B1 Patent Document 5: JP2007-289341A [Draft] The present invention provides a a cleaning sheet which is formed by bonding a plurality of bundles of bulk fibers to at least one surface of the substrate sheet to form a cleaning portion, the bundle of bundled fibers being arranged in a plurality of directions in one direction by the joint portion The fibers are joined to each other to form 'and the fibers extending from the joint portion are in an open state. Further, the present invention provides a method for producing a sheet for cleaning, which is a preferred method for producing the sheet for cleaning, which comprises: a plurality of continuous fibers arranged in one direction by A plurality of joint portions extending in a direction in which the extending directions of the fibers intersect are joined to each other to form a continuous long fiber bundle, and the continuous long fiber bundle is cut between the joint portions to obtain an unfiber-opened short fiber bundle, and the fluid is sprayed to The unfiber-opened staple fiber bundle is obtained by opening a fiber extending from the joint portion to obtain a bundle of bulk fibers, and joining a plurality of the bundles of the block fibers to at least one surface of the base sheet. Moreover, the present invention provides a method for producing a sheet for cleaning, and another preferred method for producing the sheet for cleaning, wherein the method comprises: borrowing a plurality of continuous fibers arranged in one direction A plurality of joint portions extending in a direction intersecting the extending direction of the fiber 137362.doc 200944171 dimension are joined to each other to form a continuous long fiber bundle, and the continuous long fiber bundle is cut between the joint portions to obtain an unopened fiber. a short fiber bundle, a plurality of the unfiber-opened staple fiber bundles bonded to at least one side of the substrate sheet, and a fluid is sprayed onto the unfiber-opened staple fiber bundle to open the fibers extending from the joint portion to obtain a fixed A bundle of bulk fibers in the state of the above-mentioned substrate sheet. [Embodiment] Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view showing a third embodiment of the cleaning sheet of the present invention. Figure 2 is a cross-sectional view taken along line II-II of Figure 1. The cleaning sheet 10 of the present embodiment includes a base sheet body U. The substrate sheet has a rectangular shape having a longitudinal direction X and a width direction γ orthogonal thereto. The cleaning sheet 1 has a cleaning portion 12 on one surface of the substrate sheet. The cleaning unit 12 has a substantially rectangular shape having a longitudinal direction X and a width direction γ in plan view. The cleaning portion 12 is located in a central region of the width direction γ of the substrate sheet π. The substrate sheet 11 extends laterally from the left and right side edges 12a of the clearing portion 12 to form a pair of wing portions 11a. On the other hand, in the longitudinal direction X, the cleaning portion 12 is extended over the entire region X in the longitudinal direction X of the substrate sheet 11. The cleaning unit 12 includes a fiber assembly and is formed to have a predetermined thickness. The fiber assembly constituting the cleaning unit 12 includes a bundle of fibers in a block shape (e.g., a spheroidal to a celotype). The following is a description of the bulk fiber bundle 137362.doc 200944171. The bundle of bundled fibers is made up of the unbroken staple fiber bundle 20 and the image. The unfiber-opened staple fiber bundle 2 () is formed by joining a plurality of fibers 21 arranged in one direction by joining portions 22 extending in a direction intersecting the direction in which the fibers extend. Connect ^22. Only one is formed. From the unfiber-opened staple fiber bundle 20, the fiber 21 extending from the joint portion 22 is opened and becomes a block-shaped (e.g., spheroidal to celotype-like) bundle-like fiber bundle 20. The method of opening the fiber phantom is described below.未 The unfiber-opened staple fiber bundle 2 shown in Fig. 3 is a flat fiber bundle 2. The shape is not limited thereto, and may be, for example, a cylindrical shape or a twisted shape (spiral shape). In the bulk fiber bundle 20 shown in Fig. 3, a joint portion 22 (not shown) is present in a substantially _ center region. Further, the fibers 2 1 extending from the joint portion 22 (not shown) are radially opened to form a block-shaped (for example, spherical-to-celiform-like) block-shaped fiber bundle 2〇. The fiber length of the fiber 21 constituting the bundle of the bulk fibers 20 is preferably from 3 to 150 mm, more preferably from 5 to 50 mm. By making the fiber length within this range, the fiber 21 can be made to have a good fiber opening state, and it becomes possible to surely trap the dirt between the fibers. When the fiber 21 has a crimp as described below, the length in the state in which the crimp is straightened is set to the length of the fiber 21. The joint portion 22 is formed in a substantially central region in the longitudinal direction of the fibers 21 constituting the bulk fiber bundle 2〇. The joint portion 22 is formed by, for example, melting and solidifying the fibers 21. Alternatively, it is formed by using an adhesive. The joint portion 22 has a predetermined width d and extends in a direction orthogonal to the direction of alignment of the constituent fibers 137362.doc • 10· 200944171 dimension 21 aligned in one direction. The width d of the joint portion 22 depends on the length or material of the fiber 21 and the forming means of the joint portion 22, and if the core is 0·5 to 80 mm, especially 1 to 40 mm, the fibers 21 can be surely fixed to each other. Engage. The number of fibers 21 contained in a bundle of bundled fibers 2 depends on the thickness of the fibers 21, but is preferably from 100 to 100,000, more preferably from 1,000 to 50,000. By setting the number of the fibers 21 within this range, the fiber density in the fiber-opening state can be made to a value suitable for capturing dirt. For the same reason, the total fineness of the entire bulk fiber bundle 2 is preferably 丨~如(八) tex ', preferably 10-4000 tex. The thickness of the fiber 21 is preferably 〜 5 to 8 〇 dtex, preferably 〇 5 to 40 dtex. By setting the thickness to be within this range, the fiber 21 can be made to have moderate rigidity, and the cleaning portion 12 can sufficiently follow the cleaning target surface having the unevenness, for example, a sill or a sliding door. Further, the cleaning unit 12 can be sufficiently pursued in a narrow place such as a corner of a room and a door stop and its surroundings. In addition, it improves the capture of the business. As the fiber 21, it is preferable to use a crimper, which further improves the trapping property of the dirt. As the crimped fiber, a two-dimensional crimp or two-dimensional crimp can be used. The crimping ratio of the crimped fiber (JIS L〇2〇8) is preferably 5 to 50%, preferably 10 to 30%, and the crimp ratio is defined as the length A of the drawn fiber and the fiber original. The percentage of the difference of the length B with respect to the length a when the fiber is drawn can be calculated according to the following formula. Crimping rate = (A-B) / Axl 〇〇 (〇 / 〇) The crimping number of the crimped fiber and the height of the bulge are related to the bulk of the bulk fiber bundle 137362.doc -11· 200944171. In detail, the larger the number of crimps, the larger the number of lumps of fibers 戾20総, the more the degree between ^ is changed. In this regard, the number of crimps is preferably from 疋 to 〇', preferably from 5 to 4 。. The height of the protrusion is preferably 〇1 to 8 〇, preferably 0.2 to 4. 〇. ❹ 上述 The above number of crimps is measured in accordance with JIS L1015. The crimp height is determined in the following manner (4). The fiber 21 was observed to find the portion of the most strong (south) portion of the non-adjacent portion. The collective portion of the fibers 21 which are substantially bent into the same shape (not one fiber) is cut out in a manner in which the shape of the assembly portion is not deformed. It is placed horizontally on the end side of the longitudinal direction of the cut fiber, which is not deformed by the paper, etc., without applying its own weight. In the case where the fiber 21 has a two-dimensional or three-dimensional crimp, the fixing is performed in such a manner that the difference between the projections and the depressions of the fibers 21 is maximized. The fiber 21 is not raised from a thick paper or the like and is as close as possible to a straight line. At this time, the actual size can be confirmed, and the scale and the like are also in the same picture and in the film. A device that can be magnified by a photocopier, a scanner, or the like is used to magnify the obtained photograph in a manner that clearly visible fibers 21 (better than 4 times). Next, from the enlarged fiber bundle 21, the curling rule is selected and is a linear portion. Further, it is determined that the upper and lower sides are determined by the fact that the fiber 21 is smaller or more accurate. Note the inner and outer sides of the assembly of the fibers 2 and connect the vertices between adjacent depressions. Next, the continuous five projections are measured substantially perpendicularly to the distance between the adjacent recesses and depressions. Pay attention to the magnification, etc., and measure the five protrusions to find the actual size. The average value was taken as the measured value of this sample. The remainder of the cut in 137362.doc -12- 200944171 was also determined in the same manner. The larger of the three values is averaged, and the average value is taken as the height of the roll. The size of the block two fiber bundle 20 (before joining the substrate sheet U) is preferably expressed by volume: 〇2~1〇〇〇em3, 0-5-125 cm3 〇 佳 疋 疋 = cleaning sheet In the body U), the bulk fiber bundle 2G is arranged without gaps

One side of the formed and second sheets U is bonded to the substrate sheet U, thereby forming a sweeping stream. Therefore, the block fibers are bundled so that the shape before joining is, for example, a spherical shape, and the bulk fiber bundle 2 can be made flat with a constant thickness by being joined to the substrate sheet n. The thickness corresponds to the thickness of the cleaning portion 12, and the fiber bundle 2() can be arranged in a single layer or in a multilayer arrangement in two or more stages. In any of the above cases, the bulk fiber bundle 20 can be disposed at any portion of the cleaning portion 12 so as to have a substantially constant thickness. As shown in Fig. 1, the base sheet u and the block-shaped fiber bundle 20 are joined at the joint 13 . The joint is formed by, for example, welding of the base sheet u and the constituent fibers 21 of the bulk fiber bundle 20. Alternatively, it is formed by the adhesion of the substrate sheet 11 and the fibers 21. The joints 13 can be configured regularly or randomly. According to the following manufacturing method, the joint U can be regularly arranged. The bulk fiber bundle 20 does not need to be joined to the substrate sheet n at the position of the joint portion 22. In other words, it is not necessary to form the joint 13 at the position of the joint portion 22. As long as the bulk fiber bundle 2〇 is bonded to the substrate sheet, but not 137362.doc -13- 200944171 from the substrate 11, the (4) block_dimensional assembly bundle 2g can be gathered in the block fiber Any position of the bundle 20 is bonded to the substrate sheet. The total basis weight of the bulk fiber bundle 2() constituting the cleaning unit 2 depends on the total fineness of the bulk fiber bundle 20 or the length of the fiber 21, but it can be satisfactorily followed by the moon body for cleaning. It is preferable that the surface of the cleaning target having the unevenness and the surface of the cleaning sheet 10 is provided with a sense of volume and the wiping feeling is good, and it is preferably 10 to 1000 g/m 2 , and the age γ is decontaminated β < Good 疋 50~500 g/m2. In connection with this, the thickness of the material and the cleaning sheet (4) is preferably 疋1 to 100 mm', preferably 2 to 5 mm, under the load of the Pa. Sweep at π. The fiber (four) constituting the block-shaped fiber bundle 2q is mainly oriented in the plane direction of the π-sweep portion 12. The fibers η oriented in the plane direction are not all oriented in the same direction but toward all directions in the plane. Further, in the fiber 21, a large amount of the direction toward the thickness of the cleaning portion is also present. Further, among the two ends of the fiber 21, since one end is a free end, the degree of freedom of movement is extremely high. As described above, in the cleaning portion, since the fibers are oriented in the respective directions and the degree of freedom of movement is two, the cleaning of the sheet for cleaning can be carried out between the fibers 21 regardless of the cleaning. On the other hand, for example, the cleaning described in Patent Documents 4 and 5 described in the section of the technique is used for aligning all the fiber systems in one direction, so that it can be carried out in the direction of the intersection. In the case of wiping, the catch rate between fibers is significantly reduced? In the case of wiping in the direction, the capture of the salary is effective for the fiber, and the cleaning sheet described in Patent Document 4 is solidified by the ends of the ί fiber. ^Fiber (4) 1 is low, 137362.doc 200944171 As the fiber 21, for example, a synthetic fiber containing a thermoplastic resin, a natural fiber such as cotton or hemp, a regenerated fiber such as rayon, a semisynthetic fiber such as acetate, or the like can be used. . These fibers may be used singly or in combination of two or more. The fiber 21 is preferably used as the fiber 21 in view of the ease of formation of the joint portion 22 of the unfiber-opened staple fiber bundle 2 (see Fig. 3) or the ease of bonding of the bulk fiber bundle 2〇 with the substrate sheet. It is a synthetic fiber containing a thermoplastic resin which is a material which can be easily thermally welded. As the thermoplastic resin, a polyolefin resin such as polyethylene or polypropylene, a polyester resin such as polyethylene terephthalate, an acrylic resin, or a vinyl resin can be used. The synthetic fiber may be composed of a single resin or a composite fiber (for example, a core-sheath type composite fiber or a side-by-side type composite fiber) obtained by combining two or more kinds of resins. Chemical agents may also be applied to the fibers 21. By applying a chemical agent for the purpose of dry dry cleaning, the trapping property by adsorbing dirt can be improved. As such a chemical agent, various oil agent components are mentioned. As the oil component, for example, an oil agent such as mineral oil, synthetic oil or polyoxyxene oil, and φ are mixed with a surfactant, a solvent, an antioxidant, and a fragrance 4 in the component of the β-oil agent. The coating amount of the chemical agent including the oil component may be about 0.1 to 5 % by weight based on the weight of the fiber 21. In the case where the cleaning body 1G of the present embodiment is used for the purpose of wet-wet cleaning, the cleaning agent can be impregnated by the impregnation of the cleaning agent, thereby improving the cleaning property. As the cleaning agent, a surfactant, a solvent, a disinfectant, a preservative, a fragrance, water, or the like can be used. The impregnation amount of the cleaning agent can be set to 20 to 500 wt% with respect to the weight of the fiber. about. 137362.doc 200944171 Dry cleaning and tidal drying can also be used for water, commercially available impregnation, etc., such as rags. The cleaning sheet 10 of the present embodiment is used for the purpose of wet wet cleaning. Liquid such as wax, wipe off, wipe, and method. As the substrate sheet u of the solid fiber-shaped bundles 20, in terms of the ease of bonding with the bulk fiber '(4), 2G, for example, it is possible to use synthetic trees, red, various non-woven fabrics or films, and paper-containing materials. Paperboard, paperboard, paperboard, paperboard, or composite materials made from paper. In the case of using a non-woven fabric, for example, in terms of strength, viscosity, etc., such as hot air non-woven fabric spunbonded nonwoven fabric, air-laid nonwoven fabric, etc., the basis weight of the 1 weaving fabric is preferably 3 to 200 g/ M2, preferably 1 〇 g/m2. For the same reason, in the case of using a film, the basis weight is preferably from 3 to 500 g/m2, preferably from 1 to 25 Å. In the case of using paperboard, the basis weight is preferably from 1 〇 to 5 〇〇 g/m 2 , preferably from 20 to 250 g/m. As the synthetic resin constituting the substrate sheet u, the same as the synthetic resin of the above-mentioned constituent fibers 21 can be used. The cleaning sheet 10 can be used, for example, as shown in Fig. 4, and attached to a cleaning tool. The cleaning tool 100 includes a head 1〇1 to which the cleaning sheet 10 can be attached, and a rod-shaped handle connected to the head 1〇1 via the universal joint 103. The mounting surface (bottom surface) of the head portion 101 has a rectangular shape in plan view, and the cleaning device 1 is used to move the head portion 〇1 in the width direction thereof (especially reciprocating movement) under normal use. Clean up. The cleaning sheet 1 is attached to the head 101 of the cleaning tool 100 having the head and the handle 102 attached to the head 1〇1 by the base sheet 11'. The cleaning sheet 10 is attached to the head 001 by the substrate 137362.doc -16- 200944171. The side of the sheet 11 on which the cleaning portion 12 is not provided is opposed to the mounting surface (bottom surface) of the head 101. Next, the wing portion Ha of the substrate sheet n is folded back to the upper side of the head portion 101. Further, the wing portion iia is inserted into a plurality of sheet holding portions of the head 101 which are flexible with radial slits. As described above, the cleaning sheet 10 can be fixed to the head 1G1 of the cleaning tool (10) by the wing portion Ua of the substrate sheet. In the case where the substrate sheet u contains a mesh (sparse yarn) as in the embodiment shown in Figs. 11 and 12 below, the bonding force between the substrate sheet 11 and the sheet holding portion 104 is obtained. Will improve, so it is better. In this state, the cleaning sheet 10 of the present embodiment can be used, for example, to wipe clean surfaces such as floors, walls, ceilings, glass, mirrors or furniture, home electric appliances, exterior walls of houses, and automobile bodies. Next, a preferred manufacturing method of the cleaning sheet 1 of the present embodiment will be described with reference to Figs. 5 to 9 . The manufacturing method can be roughly divided into: (a) a manufacturing step of the bulk fiber assembly bundle 20, and (b) a bonding step of the bulk fiber assembly bundle 20 and the substrate sheet u. (A) The block fiber assembly ❹ 20 manufacturing steps can be roughly divided into: (A-1) manufacturing steps of continuous long fiber bundles, (A-2) manufacturing steps of unfiber-opened short fiber bundles, (A_3) a manufacturing step of a bundle of bulk fibers. The manufacturing process of the continuous long fiber bundle of (A1) is a plurality of continuous filaments arranged in one direction, and joined to each other by a plurality of joints extending in a direction intersecting the direction in which the fibers extend. The manufacturing step of forming the unfiber-opened staple fiber bundle of the continuous long fiber bundle (A2) is to cut the continuous long fiber bundle between the joint portions to obtain an unfiber-opened short fiber bundle. The manufacturing process of the block fiber bundle of (A-3) is performed on the unfiber-opened short fiber bundle jet stream 137362.doc 200944171, and the fibers extending from the joint portion are opened to obtain a bundle of bulk fibers. First, referring to Figs. 5 to 8, a manufacturing step of facing the block fibers (A): the bundle 20 will be described. Fig. 5 is a view showing a manufacturing apparatus 3 for a continuous long fiber bundle and an unfiber-opened short fiber bundle. First, a bundle 23 of continuous long fibers as a raw material from the supply portion. The bundle of continuous long fibers 23 is a bundle of a plurality of continuous long fibers which are drawn in one direction. The continuous fiber is the constituent fiber 21 of the target bulk fiber bundle 20. The number of continuous long fibers in the bundle 23 of φ 4 continuous fibers may be equal to the number of fibers 21 in the target bulk fiber bundle 20, or may be more than the fibers 21 in the target bulk bundle 20 The number of. The bundle of continuous long fibers 23 that has been taken out is introduced into the fiber opening device 32, and is widened in a direction orthogonal to the conveying direction, whereby the fiber opening bundle 24 is produced. This state is shown in Fig. 6(a). Further, in Fig. 6(a), the direction from the left side to the right side of the paper surface is the conveying direction. The same is true in Figs. 6(1)) to (d). The fiber opening device 3 includes a pair of block rolls 33 and 34 which are provided in a plurality of pairs (three pairs in Fig. 3) along the e-conveying direction of the bundle of continuous long fibers. The pair of block rolls 33 and 34 include a plurality of grooved grooves 33 extending in the circumferential direction and a metal grooved roll 33 which are alternately arranged in the axial direction, and a circumferential contact with the grooved roll 33 and a circumferential surface An anvil roll 34 formed of rubber. The block rolling rolls 33, 34 thus constructed are well known in the art. The bundle of continuous long fibers 23 is made wide by the passage between the grooved roll 33 and the station roll 34, thereby producing the opened fiber bundle 24. The opened tow 24 obtained by the fiber opening device 32 is introduced into the chemical coating device 35. In the chemical agent coating apparatus, 137362.doc 200944171: surface coating chemical (tetra) β is used as a chemical agent from the opened fiber bundle 24, and the above-described ones are used. For coating chemist _ 丨 ( 乐 (4) For example, a spray device can be used. Further, an embossing roll coating method can also be used when applying a chemical.开 φ The open fiber bundle 24 coated with the chemical is then introduced into the joint device %. The joining device 36 is provided with a linear rib extending in the axial direction of each of the embossing marks 6a and 36b of the ridges 36a and 36b, and is arranged at a predetermined interval along the circumferential direction. Secret system: enter the heating. In the rotated state, one embossing roller-the ridge W is in opposed contact with the ridge 36e of the other ridge 36b. The continuous filaments constituting the opened fiber bundle 24 when the fibrils are between 'and between the two newspapers' are fused and solidified by the action of the enthalpy and the pressure, and the open fiber bundle 24 is formed with the composition and the continuous length thereof. A plurality of joint portions 22 extending in the direction in which the fibers extend in the direction of extension. This state is shown in Fig. 6(b). As shown in the case, the joint portion 22 is extended in a direction orthogonal to the extending direction of the continuous long fibers constituting the open fiber bundle 24. In FIG. 6(b), the joint portion 22' is represented by a straight line extending 1 in a direction orthogonal to the extending direction of the continuous long fibers of the filament bundle 24, and may also extend in a straight line in the oblique direction or Curve instead. The distance between the joint portions 22 is fixed. The continuous long fibers are joined to each other by the formation of the interface W. The joint portion 22' corresponds to the joint portion 22 of the unfiber-opened staple fiber bundle shown in Fig. 2 described above. ° A plurality of joint portions 22 are formed, and the opened filament bundles 24 are introduced into the slitter 37. The slitter 37 includes an old % and a pure m in which a plurality of circular knives are arranged at a predetermined interval in the axial direction of the roll. By guiding the opened fiber bundle 24 to the slitter 37t, the open fiber bundle 24 can be cut at predetermined intervals along the extending direction of the continuous long fibers 137362.doc 200944171 and throughout the width direction. As shown in Fig. 6(c), a plurality of continuous long fiber bundles 25 formed by cutting the opened tow 24 in the width direction thereof are formed. Each of the continuous long fiber bundles 25 is introduced into the width direction cutting device 38 as shown in Fig. 5 . The width direction cutting device 38 includes a first roller 38a that is disposed at a predetermined interval in the circumferential direction, and an anvil roller that is disposed opposite to the first roller 38a. 38b. The two rolls 38a and 38b are arranged such that the ridge bar 38c of the first roll 38a is in contact with the circumferential surface of the anvil roll 38b or in a distance relationship close to the peripheral surface. By introducing the continuous long fiber bundle 25 between the two rollers of the width direction cutting device 38, as shown in Fig. 6(d), the position between the joint portions 22 (the position indicated by a broken line in Fig. t) The continuous long fiber bundle 25 is cut along the width direction. In the step of producing the unfiber-opened staple fiber bundle 20' from the bundle 23 of the continuous long fibers as the raw material by the cutting, the unfiber-opened staple fiber bundle 20' can be produced in the same manner as the raw material. The fiber bundles 20, ... will be described with reference to Figs. 7 (4) and (8). In the present production method, the step of forming the opened fiber bundle 24 from the bundle η of the continuous long fibers as the raw material and applying the oil agent is the same as the method of the method. The open fiber bundle 24 coated with the oil agent is divided into a plurality of pieces in the direction in which the continuous long fibers extend in the guide device 39, and becomes a plurality of divided fibers and four bundles 26. The state is shown in Fig. 7(b). The division device state includes a pair of the pair of open material rolls 39a, 3 along the open fiber bundle (three pairs in Fig. 7 (4)). - Pair of block rolls 39a, 39b 137362.doc -20· 200944171 includes a metal grooved roll 39a in which a plurality of grooves and ridge portions extending in the circumferential direction are alternately arranged in the axial direction, and the grooved groove The roll 39a is opposed to the anvil roll 39b whose contact surface is formed of rubber. The groove of the grooved roll 3 is arranged such that the opened tow 24 is divided into a plurality of positions in the width direction thereof. The number of continuous long fibers of each of the divided open fiber bundles 26 obtained by the dividing means 39 is the same as the number of the unfiber-opened short fiber bundles 2 of the target, and the number of the fibers 21 is the same. Each split open fiber bundle 26 is then introduced into the engagement device 36. This bonding device φ 36 is the same as that shown in Fig. 5. The continuous long fibers constituting the divided split bundle 26 are melt-solidified by the action of heat and pressure of the joining device 36, and an extension along the continuous filaments constituting the split filament bundle 26 is formed on the split open strand 26 A plurality of joint portions 22 extending in the direction of the direction. This state is the same as that shown in 圊6(c). Thereby, a plurality of continuous long fiber bundles 25 can be formed. The continuous long fiber bundle 25 is introduced into the width direction cutting device 38. This width direction cutting device 38 is the same as that shown in FIG. The continuous length fiber bundle 25 is cut along the width direction at a position between the joint portions 22 by the width direction cutting device 38. This state is the same as the state shown in Fig. 6 (d), and the target unfiber-opened staple fiber bundle 2 is obtained by the cutting. The unfiber-opened staple fiber bundle 20' manufactured by the device shown in Fig. 5 or the device shown in Fig. 7 is supplied to the fiber opening step. Referring to Fig. 8 (deciphering & a face-to-step details), as shown in Fig. 8 (4), the unfiber-opened staple fiber bundle 20' is introduced into the cavity chamber in an airtight state. 4) an introduction portion W for introducing a fluid into the chamber 4, and a discharge portion 42 for discharging the fluid introduced into the chamber 40 to the outside. If the fluid is introduced into the chamber through the introduction portion 4 In the chamber 4, the introduced stream 137362.doc -21 - 200944171 realizes a turbulent flow in the chamber 40. This turbulent flow will disturb the unfibered short fiber bundle 2〇. The result is shown in Fig. 8(b). As shown in the figure, the fiber 21 extending from the joint portion 22 of the unfiber-opened staple fiber bundle 2 is opened, and is expanded substantially radially around the joint portion 22. As described above, the target bulk fiber can be obtained. The bundle 20 is a gas used in the fiber opening, and examples thereof include a gas and a liquid. As a gas, from the viewpoint of economy or operability, air is used.

It is advantageous to use a gas other than the gas, such as nitrogen. Gases that are flammable or explosive are not easy to handle. As the liquid, it is preferred to use a steeper swing. As a fluid, it is advantageous to use water from the viewpoint of economical viewpoint or operability. For example using as a gas

^ When rolling a horse fluid, the π 3T gas applies an energy (pressure) compressor, a blower for blowing a gas, etc., and the self-guided person 41 guides the gas into the chamber 4G, and the gas is discharged by the discharge portion 42. It is discharged to the outside, thereby generating a turbulent flow of gas in the chamber 4〇. The amount of air to be ejected and the discharge pressure of the bulk fiber bundle 2Q for obtaining the target are based on the number of crimps of the fibers constituting the unfiber-opened staple fiber bundle 2Q, the height of the projections, the number of fibers, the length of the fibers, and the fibers. The thickness, or the number of unopened staple fiber bundles 2 投入, which are put into the chamber 40, are different, the number of the buckled soil, and the volume of the chamber are different. For 〇$〗 Λη 3 is set to OHOMPa. Preferably, the latter can also be replaced by the method of opening the agitating card using a fiber opening method such as the device shown in the apparatus, i.e., agitating the rotor. Or a method of pulverizing the wood pulp by mechanical means. 137362.doc -22.200944171 e 继 Next, the step of (b) is the step of fixing the obtained bulk fiber bundle 20 and the substrate sheet u. This step will be described with reference to Fig. 9. In the manufacturing apparatus 50 shown in Fig. 9, first, the entire sheet 11 is taken out from the entire sheet roll 1U of the substrate sheet 11. A bundle of bundled fibers 2 is placed on one of the faces of the entire sheet 1 that has been drawn. This configuration uses a suction device 51. The suction device 51 is provided with a suction pipe 52. One end of the suction pipe 52 is located in a storage box 53 in which a plurality of block-shaped fiber bundles 20 are accommodated. The other end of the suction pipe 52 is located on the face at a predetermined interval from the face opposite to the face of the entire body i. The other end of the suction pipe 52 has a horizontally wide opening 52 extending in the width direction of the entire sheet 11·. The suction device 51 is activated, and the bulk fiber bundle 20 housed in the storage box 53 is sucked together with the air. By the suction, the bundle of bundled fibers 2 is sucked from the end of the suction tube 52 into the tube 52, and is conveyed into the suction tube 52 and then through the other end of the tube 52, that is, the opening 52. , discharge it and place it on top of the whole U. The block fiber bundle 2 is randomly distributed. By adjusting the degree of suction or the shape of the opening portion 52, the bundle of bundled fibers 2 can be spread over the entire sheet without any gap. The entire sheet 11 on which the bulk fiber bundles 20 are placed is introduced into the embossing device 54. The embossing device 54 is provided with a plurality of protrusions on the circumferential surface, a plurality of protrusions, and a contact with the first arrangement, and a light one protrusion, and at least the relationship is arranged. Two views - b, the magic roller 54a is heated. "For example, the following method may be employed. The following method is employed: a roller of the same 137362.doc -23·200944171 as the protrusion 54e of the first roller is disposed instead of the anvil roller 54b disposed opposite to the roller 54a. The embossing method (Tip t〇Tip mode) in which the projections 54c are in contact with each other. By using the heat and pressure of the embossing device 54, the fibers 21 and the entire sheet U constituting the bundle of the bulk fibers are melted and solidified, and the bundle of the bundled fibers is bundled and the entire sheet. The bodies 11' are joined. By this bonding, a plurality of joints 13 can be formed (see Fig. 1). As described above, since the bulk fiber bundle 2 is randomly disposed on the entire sheet 11', the joint 13 is formed at any position on the bulk fiber bundle 20. Further, it is not limited to the case where one joint 13 is formed on the i-block fiber bundles 20, and two or more joints 13 are formed on the Mi-block bundles. The shape of the joint 13 is roughly shown as a dot (circular) shape, and may be replaced by a shape other than an elliptical shape, a triangular shape, a square shape, a v-shaped shape, or a ten-like shape (circular shape). Further, in order to increase the bonding strength between the bulk fiber bundle 20 and the entire sheet u, a bonding wire such as a straight line, a diagonal line or a curved line may be used, or these may be used in combination. The bulky bundle 20 of the heat and pressure imparted by the embossing device 54 has a reduced bulkiness. Therefore, the fluid is ejected from the bulk fiber bundle 20 joined to the entire sheet body u by using the fluid ejecting device 55 disposed on the downstream side of the embossing device 54. By ejecting the fluid, the constituent fibers 21 of the bulk fiber bundle 20 can be disturbed to be opened, thereby restoring the lotus root of the bulk fiber bundle 20. As the fluid for spraying, the unfiber-opened staple fiber bundle 20 shown in Fig. 8 can be used, and the fluid used in the opening step is the same. The preferred fluid is air. When air is used as the fluid, the degree of ejection is based on the volume of the fiber (four), the height of the protrusion, the number of fibers, and the number of fibers, which constitute the bundle of bundle fibers 137362.doc -24· 200944171 bonded to the entire sheet U•. The fiber length, the fiber thickness, and the state of the joint embossing pattern are different. The amount of the air to be used for obtaining the target fiber opening state is preferably 〜5 to 1 〇〇m3/min, and the discharge pressure is preferably 0.1 to 1.0 MPae can be used for carding or rubbing at the protrusions such as a brush or a comb, in addition to the fluid ejection method for recovering the bulkiness of the bulk fiber bundles. Also, the combinations can be 0.

Thus, the long sheet cleaning sheet 10 can be obtained. The sheet 10 is introduced into the width direction cutting device 56. The width direction cutting device 56 includes a first roller 56a that is disposed at a predetermined interval along the circumferential direction of the ridge blade 5 6 c extending in the axial direction of the roller, and an anvil disposed opposite to the first roller 5 The roller 56b; the two rollers 56a and 56b are disposed such that the first roller 5 is in contact with the circumferential surface of the anvil roller 56b or the circumferential surface thereof. By guiding the sheet 1 to the widthwise trim I frame 56, the sheet body 1 can be cut at a predetermined interval in the width direction. By this cutting, the sheet 1〇| can be made into a single piece, and the target cleaning sheet 1〇 can be obtained. Further, in the present manufacturing method, the chemical agent applying device 35 described above with reference to Figs. 5 and 7 may be disposed at an adjacent downstream position of the embossing device 54 shown in Fig. 9. Fig. 10 shows a manufacturing method different from the manufacturing method shown in Fig. 9. This system uses the same apparatus 5 as the manufacturing method shown in Fig. 9. The present method=method is different from the manufacturing method shown in FIG. 9 in that the raw materials used are not in detail. The manufacturing method does not involve the bulk fiber bundle 2〇 with the entire sheet 11' of the substrate sheet 11. Engaging, but joining the unfiber-opened staple fiber bundle 137362.doc -25- 200944171 2〇 to the entire sheet body 11 of the substrate sheet 11. The specific operations are as follows. Further, the description about the manufacturing method shown in Fig. 9 can be applied as appropriate. First, the entire sheet 11 is taken out from the entire sheet roll 11a of the substrate sheet. The unfiber-opened staple fiber bundle 20 is placed on the surface of the entire sheet U to be drawn using the suction device 51. The unfiber-opened staple fiber bundle 20' is randomly placed into the configuration. Unlike the method shown in Fig. 9 in which the bulk fiber bundle 20 is disposed, the present manufacturing method does not need to spread the unfiber-opened staple fiber bundle 2 without any gap. The unopened staple fiber bundle 20 is placed, and the entire sheet 11· is introduced into the embossing device 54. By using the heat and pressure of the embossing device 54, the fibers 21 and the entire sheet n constituting the unfiber-opened staple fiber bundle 2 can be melt-solidified, and the unfiber-opened staple fiber bundle 2 is The whole piece is smashed and joined. By this bonding, a plurality of joints 13 can be formed (see Fig. 。). The non-blocky fiber bundle 2 接合 joined to the entire sheet is supplied to the opening step using the fluid ejecting device 55. In the fiber opening step, the constituent fibers 2 of the non-blocky fiber bundle 2〇1 are disturbed by spraying a fluid to cause the fibers to be opened. The degree of opening of the fiber 21 can be adjusted by adjusting the fluid ejection pressure or the like. In the case where air is used as the fluid, the degree of ejection is higher than that in the manufacturing method shown in Fig. 9. The reason for this is that the manufacturing method shown in FIG. 9 is to eject the fluid under the purpose of re-opening the fibers 21 in the opened state. In contrast, the present manufacturing method requires the unfiber-opened fibers 21 to be opened, thereby opening Fiber needs more energy. As described above, the block-shaped fiber bundle 20' can be formed in a state of being fixed to the entire sheet body 1 to obtain a long-length sheet for cleaning. Thereafter, the target cleaning sheet 10 is obtained in the same order as the manufacturing method shown in Fig. 9 by 137362.doc -26- 200944171. Referring to FIGS. 11 to 18, the second to eighth embodiments of the present invention will be described. "With respect to these embodiments, only the differences from the third embodiment will be described, but not particularly The description of the first embodiment can be suitably applied to the description. In addition, in FIGS. u to 18, the same components as those in FIGS. 1 to 1B are denoted by the same reference numerals. In the cleaning sheet 10 of the second embodiment shown in Fig. 11, the type of the substrate sheet 11 is different from that of the first embodiment. In detail, the substrate sheet 11 of the present embodiment comprises a mesh (sparse yarn) 11a. The mesh lla is a lattice. The mesh size, the wire diameter, and the line pitch are determined in consideration of the strength of the cleaning sheet 10 or the bonding property with the bulk fiber bundle 20 constituting the cleaning portion 12. Specifically, the wire diameter of the mesh 11a is preferably ~ μηη, and more preferably the wire diameter of the 5〇~1〇〇〇μϊηβ mesh lla may be partially different. In this case, it is better. The wire diameter of the thicker portion is the above value. The line spacing of the web Φ lla is preferably from 1 to 30 mm, more preferably from 5 to 15 mm. The mesh 11a contains, for example, a synthetic resin. According to the cleaning sheet 10 of the present embodiment, the cleaning force of the sheet holding portion 104 and the mesh 113 is improved in a state where the cleaning sheet 10 is attached to the cleaning tool 100 shown in Fig. 4 . In the cleaning sheet body 1 of the third embodiment shown in Fig. 12, the type of the base sheet 1 is different from that of the first embodiment. Specifically, the substrate body 11 of the present embodiment includes a composite of a mesh (sparse yarn) 1] a and a nonwoven fabric 11}. As the mesh 11a, the same as in the second embodiment can be used. As the nonwoven fabric l]b, the same as the first embodiment can be used. Mesh 137362.doc -27- 200944171 11 a and non-woven fabric 11 b are joined by, for example, heat welding or by using an adhesive. In the substrate sheet 11, the web 11a faces the side of the cleaning portion 12 without the woven fabric 11b facing the opposite side of the cleaning portion 12. According to the cleaning sheet 10 of the present embodiment, the same effects as those of the cleaning sheet of the embodiment shown in Fig. 11 can be exhibited. The cleaning sheet 10 of the fourth embodiment shown in Fig. 13 is clear.

The sweep portion differs from the first embodiment in that it has a plurality of lengthwise directions X. The specific cleaning unit includes two of the first cleaning unit 12Α and the second cleaning unit 12Β. The width of each of the cleaning portions 12A and 12B is substantially equal. Further, the basis weight of the fibers 21 is also substantially equal. "The respective cleaning portions are extended along the longitudinal direction X. A substrate sheet u is exposed between the two cleaning portions 12A and 12B. According to the cleaning sheet 10 of the present embodiment, when the convex portion such as the anti-slip strip of the step or the lower frame of the door is cleaned, the cleaning portion 12A, 12B crosses the convex portion and encloses the convex portion. In the manner of cleaning, there is an advantage that the follow-up of the convex portion or the catching property of the office existing in the convex portion is improved. The distance D between the m cleaning unit 12A and the second cleaning unit i2B is preferably 2 to 8. Mm, preferably i. ~5. Mm. Fig. 14 is a perspective view showing a fifth embodiment of the cleaning sheet according to the present invention. The bundle of fibers constituting the cleaning unit 12 includes an assembly of the unfiber-opened staple fiber bundles 20. The details of the unfiber-opened staple fiber bundle 2G are the same as those described above for the face-to-face reference. In the present specification, the term "unopened fiber" refers to a state in which a plurality of fibers are bundled along a square 6 direction. The fiber 21 extending from the joint portion 22 of the unopened (10)-dimensional bundle 2〇' shown in Fig. 3 can be used in the cleaning sheet 10β丄b* of the present embodiment by the cleaning object 137362.doc -28- 200944171 The friction of the surface is opened. By the fiber opening, the unfiber-opened fiber bundle 2g has a block shape and becomes the fiber bundle 2〇 shown in the same figure. In addition, the fiber-opening fiber bundle 20 shown in the same circle is a ball-like type, which is an ideal fiber-opening state in the case where the unfiber-opened fiber bundle 2 is opened in a state in which it is opened alone. When the pressure at the time of cleaning is actually applied to the cleaning portion 12, the fiber opening "A" is opened, and the fiber fiber bundle 20 is formed into a flat shape having a certain thickness. The unfiber-opened staple fiber bundle 2〇 used in the present embodiment is a flattener as shown in FIG. 3, but the shape of the unfiber-opened staple fiber bundle 2 is not limited thereto, and may be, for example, a columnar shape or a square shape. Columnar, twisted (spiral). In the cleaning sheet 10, the unfiber-opened staple fiber bundle 20 is randomly or regularly disposed on one surface of the substrate sheet 11 and joined to the fiber sheet body u, whereby the cleaning portion 12 is formed. The unfiber-opened staple fiber bundles 2 are arranged at intervals, or are disposed at predetermined intervals so that the adjacent unfiber-opened staple fiber bundles 2 are exposed between the surfaces of the substrate sheet bundles. Further, the unfiber-opened staple fiber bundles 20' may be disposed in a single layer or in a multi-layer configuration of two or more stages. In either case, the unfiber-opened staple fiber bundle 2 is advantageous in that the constituent fibers 21 are opened in a state of being rubbed by friction with the surface of the cleaning target, and are uniformly formed in the cleaning portion 12. Configure in the state of thickness. As shown in Fig. 14, the substrate sheet 11 and the unfiber-opened staple fiber bundle 2 are joined at the joint 13. The joint is formed by, for example, welding of the base sheet body 丨丨 and the constituent fibers 21 of the unfiber-opened staple fiber bundle 20'. Alternatively, it is formed by the substrate sheet entanglement with the fibers 21. The joint 13 can be configured regularly, 137362.doc -29- 200944171 or randomly configured. According to the manufacturing method described below, the joint 13 is regularly arranged. The unfiber-opened staple fiber bundle 20 does not need to be joined to the substrate sheet 11 at the position of the joint portion 22. In other words, it is not necessary to form the joint 13 at the position of the joint portion 22. As long as the unfiber-opened staple fiber bundle 20· is bonded to the base material sheet, the detachment of the uncured short-fiber bundle 11 does not occur at any position of the unfiber-opened staple fiber bundle 20· The substrate sheet may be bonded to each other.

The total basis weight of the unfiber-opened staple fiber bundle 2 constituting the cleaning portion 12 depends on the total fineness of the unfiber-opened staple fiber bundle 20' or the length of the fiber 21, but preferably 10 to 1000 g/m2'. It is preferable that the fiber of the fiber-opening state is in a state of being cleaned by the surface of the cleaning target having the unevenness, and the cleaning sheet 1 to which the fiber 21 is opened, and the volume of the cleaning sheet is wiped. The aspect of good change is better. When the cleaning sheet 10 of the present embodiment is placed in the mounted state shown in FIG. 4 described above and the cleaning target surface is wiped off, the unfiber-opened short fiber bundle 20 is used, and the fibers 21 are cleaned by the cleaning portion 12 and Clean the surface of the object and open it. This state is in contrast to the above-described figures and the state shown in Fig. 2. In the cleaning sheet 1A in which the fibers 21 are opened by cleaning, the cleaning: 12 includes the assembly of the opened fiber bundles 2 shown in Fig. 1 and the cleaning unit 12; Although the thickness depends on the degree of friction or the time of cleaning: "But in the fiber-opening state of the fiber 21, the 疋 of the 30"a load is 1~5Gmm, preferably 2~ 30. In the former state, the unfiber-opened staple fiber bundle 2 is formed, and the fiber η is mainly shown in the plane direction of the cleaning portion 12. The direction toward the plane is 137362.doc -30- 200944171 ❹

The fibers 21 are not all oriented in the same direction but in a direction in the plane. By opening the fibers 21 in this state, the fiber phantom after the opening is oriented in all directions in the plane of the cleaning portion 12 as shown in Figs. 1 and 2 described above. Further, in the fiber 21, a large amount of the direction toward the thickness of the cleaning portion 12 is also present. Therefore, in both ends of the fiber 21, since one end is a free end, the degree of freedom of movement is extremely high. As described above, since the fiber system is oriented in various directions in the fiber-opening state and the degree of freedom of movement is extremely high, the object can be captured between the fibers 21 regardless of the direction in which the cleaning sheet 10 is cleaned. Further, it is not necessary to perform the special processing on the unfiber-opened staple fiber bundle 2〇 in order to open the fiber 21 end-to-end well for the unfiber-opened staple fiber bundle 20. The fibers are opened by applying friction to the fibers that are aligned in the direction, and the fibers should have properties. From the other side, it can be said that the present invention provides a cleaning sheet which can maintain a compact shape which is not fluffy before use and which has a high-definition performance which becomes fluffy by utilizing the related attributes. However, the constituent fibers of the unfiber-opened staple fiber bundle 20· may be turned upside down by hand, or combed with a comb or a brush or the like, and the fibers 21 may be opened well at the beginning and the end. Next, a preferred manufacturing method of the cleaning sheet j 本 of the present embodiment will be described with reference to Fig. 15 . The manufacturing method can be roughly divided into (1) a manufacturing step of the unfiber-opened short fiber bundle 20', and (ii) an unfiber-opened short fiber bundle 2'', and a bonding step with the substrate sheet 11. (ii) Manufacturing step of the unfiber-opened staple fiber bundle 20' is a (a) bulk fiber bundle 20 when the cleaning sheet of the first embodiment is manufactured as described above with reference to Figs. 5 to 7 The manufacturing steps are referred to as 'the description thereof is omitted here. Moreover, only step 137362.doc 31 200944171 of (ii) will be described here. The description will be made with reference to the steps of Fig. 15 - facing (ii). In the manufacturing apparatus 50 shown in Fig. 15, first, the entire sheet body 1 is taken out from the entire sheet roll 11& of the substrate sheet 11. An unfiber-opened staple fiber bundle 20' is disposed on one side of the entire sheet n to be drawn. This configuration uses a suction device 51. The suction device 51 is provided with a suction pipe 52. One end of the suction pipe 52 is located in a housing box 53 in which a plurality of unfiber-opened staple fiber bundles 20' are housed. The other end of the suction pipe 52 is positioned on the face at a predetermined interval from the face so as to face the face of the entire sheet 1 . The other end of the suction pipe 52 has a wide opening portion 52· extending in the width direction of the entire sheet body. The suction device 51 is activated, and the unfiber-opened staple fiber bundle 20' accommodated in the storage box 53 is sucked together with the air. By the suction, the unfiber-opened staple fiber bundle 20 is sucked into the tube 52 from one end of the suction tube 52, and is conveyed into the tube 52. -, the other end of the tube 52, that is, the opening portion 52, is discharged and placed on the entire sheet body 1Γ. The unfiber-opened short fiber bundle 2〇 is randomly arranged. The desired number of unfiber-opened staple fiber bundles 20' can be placed on the entire sheet body by adjusting the degree of suction or the shape of the opening portion 52. The entire sheet bundle of the unfiber-opened staple fiber bundle 2 is placed and introduced into the embossing device 54. This embossing device 54 is the same as the structure of the embossing device (see Fig. 9) for manufacturing the cleaning sheet of the first embodiment. Therefore, the description of the first embodiment can be suitably applied to the use of the unfiber-opened staple fiber bundle 2 of the embossing device 54 in combination with the entire sheet bundle. The unspun staple fiber bundle 2〇 is bonded to the entire sheet n, and the long sheet-like cleaning sheet 1〇, β is obtained, and the sheet is introduced into the width direction trimming device I37362.doc -32 - 200944171 placed in 56. The width direction cutting device 56 includes a first roller W in which the ridge blade 56c extending in the axial direction of the roller is disposed at a predetermined interval in the circumferential direction, and a stone which is disposed opposite to the first (8). The two (four) parts are arranged in such a manner that the convex blade 56e of the m56a is in contact with the circumferential surface of the stone occupying roller or a distance relationship close to the circumferential surface. By guiding the sheet 1 to the widthwise cutting device 56, the sheet can be cut at a predetermined interval in the width direction. By this cutting, the sheet is made into a single piece, and the target cleaning sheet 1 is obtained. Further, in the present manufacturing method, the chemical application device 35 described above with reference to Fig. 5 and Fig. 7 may be disposed at a position downstream of the embossing device 54 shown in Fig. 15. The type of the substrate sheet u of the cleaning sheet 1 of the sixth embodiment shown in Fig. 16 is different from that of the fifth embodiment. Specifically, the base sheet 11 of the present embodiment includes a mesh (sparse yarn) lu, and the details of the mesh lu are the same as those described in the second embodiment shown in Fig. 1A. The cleaning sheet 10 according to the embodiment of the present invention has the advantage of improving the engagement force between the sheet holding portion 1〇4 and the mesh ua in a state where it is attached to the cleaning tool 100 shown in FIG. . The type of the substrate sheet n - of the cleaning sheet 1 of the seventh embodiment of the seventh embodiment is different from that of the fifth embodiment. Specifically, the substrate sheet 11 of the present embodiment comprises a composite of a mesh (sparse yarn) 丨丨a and a nonwoven fabric ub. In the present embodiment, the fifth embodiment shown in Fig. 14 and the third embodiment shown in Fig. 2 are combined. According to the cleaning sheet 10 of the present embodiment, the same effects as those of the cleaning sheet 137362.doc • 33- 200944171 of the sixth embodiment shown in Fig. 16 can be obtained. The cleaning sheet 10 of the eighth embodiment shown in Fig. 18 is different from the fifth embodiment in that the cleaning portion has a plurality of lengths extending in the longitudinal direction X. This embodiment is a combination of the fifth embodiment shown in Fig. 14 and the fourth embodiment shown in Fig. 13. Although the present invention has been described above based on a preferred embodiment of the present invention, the present invention is not limited to the above embodiment. For example, the block fiber bundle 20 and the unfiber-open staple bundle 20' of the above-described embodiments form the joint portion 22 in a substantially central region in the longitudinal direction of the fiber 21, and the joint portion 22 may be formed in the length of the deflecting fiber 21. The position of the approximate central region of the direction is replaced. Further, the joint portion 22 may be formed at one end of the fiber 21. Further, as the bulk fiber bundle 20, a plurality of first fibers arranged in one direction and a plurality of second fibers arranged in a direction intersecting the direction may be used, and formed by two The joint portion at the intersection of the fibers is formed by joining the two fibers to each other, and the first and second fibers extending from the joint portion are opened to form a block. The same applies to unfiber-opened staple fiber bundles. Moreover, in each of the above-described embodiments, the example in which the cleaning sheet 1 is attached to the cleaning tool shown in Fig. 4 is exemplified, and the following example may be used instead: the cleaning sheet 1 is made of The cleaning cloth which is formed into a flat bag shape having an insertion space as described in Japanese Laid-Open Patent Publication No. Hei No. Hei 9-1995, and the cleaning cloth is attached to the hand-held mop type described in the same publication. Sweep up on the table. Alternatively, you can also clean the 137362.doc -34 200944171 sweeping sheet ίο directly. Further, in each of the above embodiments, the cleaning portion 12 is formed only on one surface of the substrate sheet 11, but the cleaning portion 12 may be formed on both surfaces of the substrate sheet n instead. Further, an embodiment in which the substrate sheet shown in Figs. 11 and 12 and the cleaning portion shown in Fig. 13 are appropriately combined is also included in the scope of the present invention. Similarly, an embodiment in which the substrate sheet shown in Figs. 16 and 、 and the cleaning unit shown in Fig. 18 are appropriately combined is also included in the scope of the present invention. EXAMPLES Hereinafter, the present invention will be described in more detail based on examples. However, the scope of the invention is not limited to the embodiments. [Example 1-1] (1) Production of unfiber-opened staple fiber bundle An unfiber-opened staple fiber bundle 2 was produced according to the method shown in Fig. 5 . The fiber 21 used was a core-sheath type composite fiber in which polyethylene terephthalate was a polyethylene terephthalate and a sheath was a polyethylene. The fiber has a fineness of 2.2 dtex. The number of crimps of the fibers 21 was 16.51, and the crimp height was 〇·87 mm. The fiber length is approximately 45 mm. The unfibered staple fiber bundle 20 has a total fineness of about 37 tex and a weight of about 1313 g. The joint portion 22 has a width of 5 mm formed in a substantially central region in the longitudinal direction of the fiber 21. On the unfiber-opened staple fiber bundle 2, a mobile paraffin wax of 5% by weight based on the weight thereof was applied as an oil agent. (2) Production of bulk fiber bundles Using the apparatus shown in Fig. 8, the obtained unfiber-opened staple fiber bundles were twisted and opened to obtain a bulk fiber bundle 2 obtained by assembling the bundled fiber bundles 20 〇137362.doc -35· 200944171 A spheroidal (celescens-like) type in which a fiber 22 is radially extended from the joint portion 22 in a region substantially in the center thereof. Its volume is about 8cm3. (3) Manufacture of cleaning sheet A cleaning sheet 1 is manufactured by using the apparatus shown in Fig. 9 . As the substrate sheet 11', a hot air non-woven fabric having a basis weight of 40 g/m2 was used. The nonwoven fabric comprises a polyester/polyethylene core-sheath composite fiber having a denier of 2.2 dtex. Substrate sheet. The length in the longitudinal direction X is 280 mm, and the length in the width direction γ is 210 mm. On one side of the substrate sheet, 40 bundles of fiber bundles were laid in a single layer at random and without gaps. The area to be laid is a region extending over the entire length direction X in the range of the length of the central portion in the width direction γ of the base sheet 11 of 120 mm. The cleaning unit 12 is formed by joining the bulk fiber bundle 20 to the substrate sheet U by heat welding. The joint 13 is a circle having a diameter of 3 mm. The arrangement pattern of the joints 13 is a lattice shape. The distance between the joints 13 is 2 mm in both the longitudinal direction X and the width direction γ. The total basis weight of the bulk fiber bundles 20 on the cleaning portion 12 was 155 g/m. Thus, the cleaning sheet 1A shown in Fig. 1 was obtained. [Example 1-2] The cleaning sheet 10 shown in Fig. 1 was obtained in the same manner as in Example 1 - 1 except that the number of crimps was 22.32 and the crimp height was 0.32 mm. [Example 1-3] The cleaning sheet shown in Fig. 1 was obtained in the same manner as in Example 1 except that the number of crimps was 7.5 and the crimp height was 〇.〇7 mm as the fiber 21. Body 10 . 137362.doc • 36· 200944171 [Example 1-4] In the same manner as in Example 1-1 except that the number of crimps was 22.86, the crimp height was 0.24 mm, and the fineness was 4.4 dtex as the fiber 21. The cleaning sheet 10 shown in Fig. 1 was obtained. [Example 1-5] A cleaning sheet 10 shown in Fig. 13 was produced. The fiber 21 and the bulk fiber bundle 20 used were the same as in Example 1-1. The length of the first cleaning portion 12A and the second cleaning portion 12B in the width direction Y is 50 mm. The distance D between the first cleaning unit 12A and the second cleaning unit 12B is 20 mm. The cleaning sheet 10 was obtained in the same manner as in Example 1-1 except that the basis weight of each of the cleaning portions 12A and 12B was 155 g/m 2 . [Example 1-6] In Example 1-5, two cleaning portions were changed to three. Each cleaning section has a length of 30 mm in the width direction Y. The distance between each cleaning part is 10 mm. A cleaning sheet 1A was obtained in the same manner as in Example 1-5 except that the basis weight of each of the cleaning portions was 155 g/m2. [Comparative Example 1] A Quickie (registered trademark) dried sheet manufactured by Kao Co., Ltd. was used as Comparative Example 1. [Evaluation] With respect to the cleaning sheet obtained in the examples and the comparative examples, the thickness of the cleaning portion was measured under a load of 3 〇〇 Pa. The results are shown in Table 1. In addition, the cleaning sheet obtained in the examples and the comparative examples was attached to the head of a Quickie (registered trademark) mop manufactured by Kao Co., Ltd., and the cleaning sheet was evaluated by the following method 137362.doc • 37- 200944171 The followability of various cleaning target surfaces having irregularities and the trapping property of dirt. The results are shown in Table 1. As a cleaning target surface, (a) a wooden floor groove (the KER7UE V groove depth 1 mm, width 2 mm manufactured by Nati〇nal Co., Ltd.), (8) tatami (junk part), (c) vertical surface (in the room) Part of the siding: QPL113T39) manufactured by National, (4) sill (4 mm groove width, width 21 mm), (e) sliding door sliding door (Barrier free type groove depth 2 mm, 5.3 mm wide), (f) side of the door stop (hanging MJT107 manufactured by Nati〇nal), (g) lower frame (height 15 mm, width 3〇mm), and (h) anti-slip Article ("Kawaguchi Technology Co., Ltd." "only" today - again, with a face of 3.9 mm and a width of 39.5 mm). Weigh 〇, 〇 2 § M〇del Dust "IWAMOTO MINERAL Co. LTD made cotton linter, diameter less than 10 μηη, length less than 0.5 _", and spread it with a sieve with a hole diameter of 3 Various cleaning objects on the surface. The evaluation criteria for installing the cleaning sheet on the Quiekle (registered trademark) mop manufactured by Kao Co., Ltd. are as follows. • Follow-up ◎: No residue in the uneven portion: Within about 1/4 of the amount of dispersion remaining in the uneven portion Δ: Within about 1/2 of the amount of dispersion remaining in the uneven portion X: Remaining over the uneven portion About 1/2 of the amount of the head 'to chase the cleaning φ ^ back and forth to clean two: owe. After wiping, the Model Dust remaining on the uneven portion of the cleaning surface and the peripheral portion of the convex portion was visually observed and judged. 137362.doc -38- 200944171 •Capacity ◎: There is no residual 〇 in the peripheral portion including the uneven portion: about 1/4 of the amount of dispersion remaining in the peripheral portion including the uneven portion △: In the peripheral portion of the concavo-convex portion, there is a dispersion amount of about 1/2 or less. X: about 1 / 2 of the amount of dispersion remaining in the peripheral portion including the concavo-convex portion

137362.doc -39- 200944171

[II v@ 溆% ifc s 4 3 cups B»k palladium target 40毖◎ 〇◎ 〇〇< ◎ 〇◎ 〇◎ ◎ XX ε: Η- ◎ 〇◎ 〇〇< ◎ 〇◎ 〇◎ ◎ XX y \s sz ^ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ X s 喵剐Μ ^ system W ε Ε «5ξτ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 〇〇 & 1 1 1 1 1 1 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ << Shame $ ο tn rs ro ΓΊ tri 〇tn 〇V? Hi 胜辉an (4) m S- g2 笆2 S3 £ 137362.doc -40- 200944171 From Table 1 As a result, it was found that the cleaning sheet of each of the examples was superior to the π-sweeping sheet of the comparative example in that the surface of the embossing surface was excellent in the followability of the uneven surface and the dirt was highly trapped. [Example 2-1] (1) Production of unfiber-opened staple fiber bundle An unfiber-opened staple fiber bundle 20* produced by the same method as that of Example 1_1 was used. (2) Manufacture of cleaning sheet A cleaning sheet 1 is manufactured by using the apparatus shown in Fig. 15 . The substrate sheet 11' was the same as the substrate sheet used in Example 1-1. On one surface of the substrate sheet 11, 40 unfiber-opened short fiber bundles 20' were randomly arranged in a single layer. The area to be disposed is a region extending over the entire length direction X in a range of 120 mm in the central portion in the width direction γ of the substrate sheet 丨j. The unfiber-opened short fiber bundle 2 was joined by heat-sealing, and joined to the base sheet u to form a cleaning portion 12. The joint 13 was a circular shape having a diameter of 3 mm. The arrangement pattern of the joints 13 is a lattice shape. The distance between the joints 13 is 20 mm in both the longitudinal direction X and the width direction Y. The unfiber-opened staple fiber bundle 20' in the cleaning portion 12 has a total basis weight of 155 g/m2. Thus, the cleaning sheet 10 shown in Fig. 14 is obtained. [Example 2-2] The cleaning sheet 1 shown in Fig. 14 was obtained in the same manner as in Example 2-1 except that the number of crimps was 22.32 and the crimp height was 0.32 mm. . [Example 2-3] 137362.doc -41 - 200944171 The cleaning shown in Fig. 14 was obtained in the same manner as in Example 2_1 except that the number of crimps was 7.5 and the crimp height was 0.07 mm. The sheet 10 is used. [Example 2-4] The same as in Example 2-1 except that the number of crimps was 22.86, the crimping degree was 0.24 mm, and the fiber yield was 4.4 dtex. The cleaning sheet 1〇. [Example 2-5] The cleaning sheet 10 shown in Fig. 18 was produced. The fibers 21 and the opened fiber bundles 20 used were the same as in Example 2-1. The length of the first cleaning portion 12A and the second cleaning portion 12B in the width direction γ in the fiber opening state is 5 mm. The distance D between the first cleaning portion 12A and the second cleaning portion 12B in the open state is 20 mm. Each of the cleaning portions 12a and 12B has a basis weight of 155 g/m2 (except for this). The cleaning sheet 1 is obtained in the same manner as in the embodiment 2-1. [Example 2-6] In Example 2-5, two cleaning portions were changed to three. The length of each cleaning portion in the fiber opening state in the width direction γ is 30 mm. The distance between each cleaning part in the open state is 1 〇 mm. The basis weight of each cleaning section was 155 g/m2. Except for this, the cleaning sheet 10 was obtained in the same manner as in Example 2-5. [Evaluation] With respect to the cleaning sheet obtained in the examples and the comparative examples, the thickness of the cleaning portion before cleaning was measured under a load of 300 Pa. Further, after the fibers were opened by cleaning, the same measurement as described above was carried out. The results are shown in Table 2. In the cleaning sheet obtained in the examples and the comparative examples, the cleaning sheet was evaluated for various cleaning target surfaces having irregularities by the same method as in Example 1-1. Followability and capture of dirt. The results are shown in Table 2. Further, in order to facilitate the comparison, Table 2 again records the data of Comparative Example 1 described in Table 。.

137362.doc •43· 200944171 Anti-slip strip with the surface of the cleaning target with embossing ◎ 〇 ◎ 〇〇 < ◎ 〇 ◎ 〇 ◎ ◎ XX £: Bu ◎ 〇 ◎ 〇〇 < ◎ 〇 ◎ 〇 ◎ ◎ XX ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ sliding door of XX sliding door ◎ ◎ ◎ ◎ 〇 ◎ ◎ ◎ ◎ ◎ ◎ ◎ lt; X 槛 槛 ◎ ◎ ◎ ◎ ◎ 〇 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 〇〇 地板 地板 地板 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ lt lt lt lt lt lt lt Capture I 1 Follow-up" | Capture | I Follow, 1 1 Capture 1 丨 Followability 1 Capture Follow-up Capture Example 2-1 Example 2-2 Example 2-3 Example 2-4 Example 2-5 Example 2-6 Comparative Example 1 -44 - 137362.doc 200944171 As a result of the results shown in Table 2, it was found that the thickness of the (4) sheet of each of the examples was small before the cleaning, but the fibers were opened by the cleaning, and the sheets were cleaned and the cleaning sheets of the respective examples were known. The cleaning sheet of the comparative example is superior in the followability to the uneven surface, and has a high catchability to the document. INDUSTRIAL APPLICABILITY As described above, in detail, it is possible to provide a follow-up property to a scanning target surface having a concave 0 & a good grasping property and a capturing efficiency of the concave portion. A good cleaning sheet. Moreover, when the unfiber-opened staple fiber bundle is used, when the surface of the cleaning target is wiped, the fibers are opened in all directions and become fluffy, and the fibers are in an unopened state before use, so that the fibers do not become loose. It can be kept in a tight state. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a first embodiment of a cleaning sheet according to the present invention. ❿ Figure 2 is a cross-sectional view taken along line II-II of Figure 1. Fig. 3 is a perspective view showing an unfiber-opened staple fiber bundle and a bundle of bulk fibers. Fig. 4 is a perspective view showing a state in which one of the cleaning sheets shown in Fig. 使用 is used. Fig. 5 is a schematic view showing a manufacturing apparatus of an unfiber-opened staple fiber bundle. Fig. 6 (a) to (4) show a pattern diagram of the manufacturing process of the unfiber-opened staple fiber bundle in order. Fig. 7(a) is a view showing a mode 137362.doc-45·200944171 of another manufacturing apparatus for the unfiber-opened staple fiber bundle, and Fig. 7(b) is a view showing the unopening of the manufacturing apparatus shown in Fig. 7(a). A pattern diagram of one part of the manufacturing process of the fiber bundle. Fig. 8 (a) and (b) are schematic views showing a fiber opening device of an unfiber-opened staple fiber bundle. ® 9 is a schematic diagram showing the cleaning device for the cleaning sheet. Fig. 10 is a schematic view showing another cleaning device for the cleaning sheet. Fig. 11 is a perspective view (corresponding to Fig. 1) showing a second embodiment of the cleaning sheet of the present invention. Fig. 12 is a perspective view (corresponding to Fig. 1) showing a third embodiment of the cleaning sheet of the present invention. Fig. 13 is a perspective view showing a fourth embodiment of the cleaning sheet of the present invention (corresponding to Fig. 1). Fig. 14 is a perspective view showing a fifth embodiment of the cleaning sheet of the present invention. Fig. 15 is a view showing the mode of the cleaning device for the cleaning sheet shown in Fig. 14. Fig. 16 is a perspective view (corresponding to Fig. 14) showing a sixth embodiment of the cleaning sheet of the present invention. Fig. 17 is a perspective view showing a seventh embodiment of the cleaning sheet of the present invention (corresponding to Fig. 14). Fig. 18 is a perspective view showing an eighth embodiment of the cleaning sheet of the present invention (corresponding to Fig. 14). Figure). [Main component symbol description] 3 Fiber opening device 137362.doc •46· 200944171

10 Cleaning sheet 10' Cleaning sheet 11 Substrate sheet 11, Whole sheet 11a Wing portion 11a Whole sheet roll 11a Mesh lib Non-woven fabric 12 Cleaning portion 12A First cleaning portion 12B Second cleaning portion 12a Sweeping left and right side edges 13 Joints 20 Block fiber bundles 20' Unfibered staple fiber bundles 21 Fibers 22 > 22' Joints 23 Continuous filament bundles 24 Open filament bundles 25 Continuous filament bundles 26 Split Filament bundle 30 manufacturing device 31 supply portion 32 fiber opening device 137362.doc -47- 200944171

33 grooved roll 34 anvil roll 35 chemical coating device 36 joining device 36a, 36b embossing roll 36c ridge 37 slitter 37a first roll 37b anvil roll 3 8 width direction cutting device 39 dividing device 40 chamber 41 introduction Portion 42 Discharge portion 50 Manufacturing device 51 Suction device 52 Suction tube 52' Opening portion 53 Storage box 54 Embossing device 54a First roller 54b Anvil roller 54c Protrusion 55 Fluid ejection device 137362.doc -48- 200944171 56 Width-direction cutting Device 5 6a first roller 56b anvil roller 56c convex bar cutter 100 sweeping tool 101 head 102 handle

103 104 X Y d D

Universal joints Sheet holding portion Length direction Width direction Width of joint portion Distance between first cleaning unit and second cleaning unit

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Claims (1)

200944171 X. Patent application scope: The scanning sheet body is formed by bonding a bundle of block fibers to at least the surface of the substrate sheet to form a cleaning portion, and the block fibers are assembled into ', * will be connected by σ The plurality of fibers arranged in one direction are joined to each other to constitute 'and the fibers extending from the joint portion are in an open state. [2] The cleaning sheet of claim 1, wherein the fiber has a crimp. 3. The cleaning sheet according to item 1 or 2, wherein the substrate sheet comprises a mesh. • 4·: The item for cleaning of the item 2, wherein the base sheet is used, and the woman wears the head having the head and the cleaning tool attached to the handle of the head. The cleaning sheet according to claim 3, wherein the substrate sheet is attached to the head having a head and a cleaning device attached to the handle of the head. 6) Manufacturing of a cleaning sheet a method of manufacturing a sheet for cleaning a sheet, wherein the plurality of continuous filaments arranged in one direction are extended in a direction crossing a direction in which the fibers extend a plurality of joint portions are joined to each other to form a continuous long fiber bundle, and the continuous long fibers are cut between the joint portions to obtain an unfiber-opened short fiber bundle, and a fluid is sprayed onto the unfiber-opened short fiber bundle to be bonded from the joint a fiber bundle is opened to obtain a bundle of bulk fibers, and a plurality of the bundles of the block fibers are bonded to at least 137362.doc 200944171 of the substrate sheet. A method for manufacturing a sheet for cleaning, A method of manufacturing a sheet for cleaning according to the claim ,, the method of manufacturing: a plurality of continuous filaments arranged in one direction by a plurality of joints extending in a direction intersecting the direction in which the fibers extend Joining each other to form a continuous long fiber bundle, and cutting the continuous long fiber bundle between the joint portions to obtain an unfiber-opened short fiber bundle, and bonding a plurality of the unfiber-opened short fiber bundles to at least one side of the substrate sheet The fluid is sprayed onto the unfiber-opened staple fiber bundle, and the fiber extending from the joint portion is opened to obtain a bundle of bulk fibers fixed in a state of being fixed to the substrate sheet. 137362.doc