Duster and dusting sheet thereof

Abstract

 A duster consisting of a dusting portion and a handle, wherein the handle is made by combining a spiral end and a holding portion, and the dusting portion includes a hot-meltable nonwoven fabric layer, an intermingled yarn layer, a smooth nonwoven fabric layer, and a nonwoven/woven fabric layer; an elongate pocket is formed on the dusting portion for receiving the spiral end of the handle, thereby the dusting portion becomes spiral with the spiral end to provide a multidirectional dusting function;the intermingled yarn layer consists of a plurality of segmented intermingled yarn; the segmented intermingled yarn has an alternately loose and tight structure for capturing more dust powder, which enhances the dusting performance of the dusting portion.

Description

BACKGROUND

TECHNICAL FIELD

[0001] The present invention relates to a duster, in particular to a duster article structure comprising a plurality of nonwoven fabric layers and fibers, wherein the nonwoven fabric layers undergo hot-pressing and cutting, so as to generate a slit in the middle to receive the spiral handle, thereby forming a dusting surface with multi-layers and better dusting effect.

PRIOR ART

[0002] There are various dusting tools on the market, from simple dust cloth to all kinds of dust mops. These dusting tools posses dusting function, however, the effect is not remarkable and thus results in the following shortcomings:

1. Since dust particles are tiny, the effect of the dust cloth and the dust mops is not satisfying and it usually requires repetition of wiping to obtain better effect. Moreover, the dust particles remaining on the dust cloth tend to scratch the articles to be cleaned.

2. The front end of the conventional dust mops cannot be replaced. As a result, after a long-term use or the dusting portion at the front end gets dirty, the dust mops have to be discarded even if the dust only clings to their surfaces. It is not environmental friendly nor cost-effective.

3. The users have to directly touch the dust cloth while using it, dust and bacteria thus are prone to stick to the users' skin and further do harm to the users' health.

4. The conventional dust cloth or dust mops require horizontal movement, which is likely to raise the dust and make the users breathe in the dust, further bringing harm to their lungs. The raised dust also tends to scratch the articles to be cleaned.

[0003] With reference to US 6,813,801, entitled "Cleaning Article", a similar cleaning article including a brush portion has been disclosed. The cleaning article comprises two sheets, at least one of which has a plurality of strips; and two layers of a fiber bundle, wherein said two sheets are overlaid in a face-to-face relationship with each other at two joining portions, defining a holding space between confronting faces of said two sheets, and said two fiber bundle layers are disposed on cleaning faces of said two sheets opposite from said confronting faces and joined to said two sheets at said two joining portions.

[0004] This prior art further includes a cleaning article having a brush portion for collecting dust, comprising a base sheet; a fiber bundle layer of filaments disposed on a cleaning-face of said base sheet, the individual filaments extending in one direction to traverse said whole fiber bundle layer; and a cleaning-side sheet disposed on a cleaning-face of said fiber bundle layer, said cleaning-side sheet being cut from opposing edges to have a plurality of strips oriented in the same direction as the filaments, said fiber bundle layer and said cleaning-side sheet being joined to said base sheet along a longitudinal centerline of the article so that said strips and said filaments have free ends on each side of said longitudinal centerline to thereby provide brush portions, wherein a holding space, into which a hand of a user or a holder is to be inserted, is formed between said base sheet and a holding sheet disposed on a face of said base sheet opposite from the cleaning-face, said holding space being located above said fiber bundle layer and said cleaning-side sheet in a thickness direction of the article.

[0005] The term "fiber bundle" in this prior art refers to a bundle of a number of fibers. Examples of the fibers include filaments, flat yarns, split yarns and the like, wherein examples of the fibers include: fibers of PE (polyethylene), PP (polypropylene) or PET (polyethylene terephthalate); and conjugated fibers of PE/PET or PE/PP (e.g., conjugated fibers of a core/sheath structure having a core of PP or PET and a sheath of PE). The fibers forming the fiber bundle layer of the prior art are crimped. With the fibers being crimped, the fiber bundle layer becomes so bulky as to take a structure enabled to capture dust easily by the crimped portions. Especially preferred are crimped filaments opened from a tow.

[0006] However, in order to prevent the fibers from being so over-crimped that they become too bulky to be used, a plurality of strips are further adopted to overlay the fibers of the fiber bundle layer, so as to keep the fiber bundles from intertwining caused by friction over a large area.

[0007] Although the prior art specifies that the fibers are not limited to be a single filament, it does disclose any other embodiments thereof. Hence upon the research made by the inventor, it is found that an intermingled yarn with segmented structure comprising alternate loose and tight segments is capable of capturing more dust powder with the fibers on the loose segments. Moreover, since the alternate loose and tight segments are formed by twisting the intermingled yarn, each of the bundles of the intermingled yarn is effectively bound and will not tangle with each other, thereby prohibiting the problems of fiber tangle and shortage of fiber capacity in the prior art. In addition, since the fiber bundle layer used in the prior art is too fluffy, it requires a plurality of strips to gather the fiber bundles in the center portion of the cleaning article, which increases the cost of material. Compared with the prior art, the directions of the fiber bundles of the present invention can be confined merely by relatively short border strips, thereby dramatically increasing the contact area between the fiber bundle layer possessing higher cleaning capability and the article to be cleaned. Also, the fiber bundle layer is softer than the strips, the possibility of scratching the articles to be cleaned thus can be reduced. Further, the present invention discloses a spiral handle to be used in combination, which forms a cleaning surface with multi-layer structure that possesses higher dusting capability

[0008] Moreover, the applicant of this application also proposes a spiral duster in an application entitled "Spiral Duster", wherein the duster comprises a handle with a crooked pole extending from the front end of the handle; a groove is disposed on each of the two lateral sides of the crooked pole, and a post is disposed under each of the lateral sides; an elbow tenon is disposed at the front end of the crooked pole; the elbow tenon comprises an arc housing, wherein a streamlined slot is disposed in the arc housing along the crooked pole, a rib is disposed on each of the two lateral sides of the slot, and a via hole is disposed under each of the two lateral sides, such that when operated by an user, the via holes of the arc housing engage with the posts of the crooked pole to form a bend point, and the two ribs of the arc housing engage with the grooves of the crooked pole, thereby the handle is integrally coupled with a spiral batten, and the spiral batten is further sheathed into an opening of an accommodating pocket, such that the dust sheet wraps the spiral batten and forms a spiral duster accordingly. However, since the crooked pole of the handle usually blocks the carrying out of the cleaning due to its bend angle, improvement is still required.

[0009] In view of the aforementioned problems present in the conventional cleaning articles, the applicant of this application concerns innovation and improvement thereof, and after long-term research, the standing duster article of the present invention is finally obtained.

Summary of The Invention

[0010] Therefore, an object of the present invention is to provide a duster capable of reducing the raise of dust, wherein the fiber bundles are not likely to be tangled and the duster portion is gathered onward. The duster comprises a plurality of nonwoven fabric layers and intermingled yarn undergone hot-pressing in conjugation with a detachable handle. Since the width of the nonwoven fabric layers are always less than the width of the intermingled yarn layer, the intermingled yarn is gathered onward, whereby an excellent dusting effect can be obtained. Also, since the intermingled yarn is segmented and has an alternately loose and tight structure, and which is also formed by two strands of yam twisted in different directions, each bundleof the intermingled yarn is effectively bound and will not tangle with each other. Hence the duster of the present invention does not require any strips arranged besides the intermingled yarn to prevent tangling.

[0011] An aspect of the duster of the present invention uses a handle with a spiral end, such that the dusting portion of the duster becomes spiral and capable of providing a multi-directional dusting function.

[0012] Another aspect of the duster of this invention uses a fork-shaped handle, such that the dusting portion of the duster has the segmented intermingled yam exposed, and the dusting effect of the duster is best when the angle between the segmented intermingled yarn and the surface of the article to be cleaned is 90 degree.

Brief Description of the Drawings

[0013] 

Fig. 1 is an exploded view of the duster according to the first embodiment of the present invention;

Fig. 2A is an exploded view of the dusting portion of the duster according to the first embodiment of the present invention;

Fig. 2B is aschematic view of the finished product of the dusting portion according to the first embodiment of the present invention;

Fig. 3 is a schematic view of the integral duster according to the first embodiment of the present invention;

Fig. 4 is a schematic view of the integral duster according to the second embodiment of the present invention;

Fig. 5 is a schematic view of the finished product of the dusting portion according to the second embodiment of the present invention;

Fig. 6 is an exploded view of the duster according to the second embodiment of the present invention; and

Fig. 7 is a schematic view of the use of the duster according to the second embodiment of the present invention.

Detailed Description of The Invention

[0014] To achieve the above objects of the present invention, preferred embodiments are provided herein.

[0015] Please refer to Fig. 1, which is an exploded view of the duster 100according to the first embodiment of the present invention. According to the figure, the duster 100consists of a dusting portion 1 and a handle 2, wherein the handle 2 is formed by the combination of a spiral end 21 and a hand-holding portion 22.

[0016] Next, please refer to Fig. 2A, which is an exploded view of the dusting portion 1 of the duster 100 according to the first embodiment of the present invention. As shown in the figure, the dusting portion 1 comprises a hot-meltable nonwoven fabric layer 12, an intermingled yarn layer 11 disposed on the hot-meltable nonwoven fabric layer 12, a smooth nonwoven fabric layer 13 disposed on the intermingled yarn layer 11, and a nonwoven/woven fabric layer 14 disposed on the smooth nonwoven fabric layer 13; wherein the intermingled yarn layer 11 is comprised of a plurality of segmented intermingled yarn.

[0017] Refer to Fig. 2B, which shows the finished product of the dusting portion 1. First, the hot-meltable nonwoven fabric layer 12, the intermingled yarn layer 11, the smooth nonwoven fabric layer 13, and the nonwoven/woven fabric layer 14 are laminated in this order and a hot-pressing process is performed thereto, such that the hot-meltable nonwoven fabric layer 12, the intermingled yarn layer 11, the smooth nonwoven fabric layer 13, and the nonwoven/woven fabric layer 14 are fused with a semi-closed fusion line 15, leaving an opening 16 to form an elongate pocket. The widths of the hot-meltable nonwoven fabric layer 12, the smooth nonwoven fabric layer 13, and the nonwoven/woven fabric layer 14 are less than the width of the intermingled yarn layer 11, and the long sides of the hot-meltable nonwoven fabric layer 12, the smooth nonwoven fabric layer 13, and the nonwoven/woven fabric layer 14 are cut to be wavy or straight to effectively control the extending direction of the segmented intermingled yarn of the intermingled yarn layer 11.

[0018] In addition, the plurality of segmented intermingled yarn of the intermingled yarn layer 11 comprises an alternately loose and tight structure. The fibers at the loose portions of the plurality of segmented intermingled yarn are capable of capturing more dust, hence the performance of the dusting portion 1 is improved. Further, since each bundle of segmented intermingled yarn is formed by two strands of yarn twisted in different direction, the each bundle of segmented intermingled yarn is effectively bound so as not to tangle with the other bundles of segmented intermingled yarn.

[0019] Next, please refer to Figs. 1 and 3. As shown in Fig. 1, the spiral end 21 of the handle 2 of the duster 100 is inserted into the elongate pocket of the dusting portion 1 through the opening 16. One end of the elongate pocket opposing to the opening 16 is divided into two portions by a fusion line 18, so as to accomodate the fork-shaped front-end of the spiral end 21, thereby making the dusting portion 1 spiral along with the spiral end 21, as shown in Fig. 3.

[0020] The duster 100 with the spiral dusting portion 1 provides a multi-directional dusting function, and by such a design the dusting portion 1 and the handle 2 can easily engage/disengage with/from each other. Further, the width on the middle portion of the elongate pocket is slightly narrowed to prevent the spiral end 21 of the handle 2 from easily slipping out of the dusting portion 1.

[0021] Please refer to Fig. 4, which is a schematic view of the integral duster 200 according to the second embodiment of the present invention. According to the figure, it can be known that the duster 200 consists of a dusting portion 1' and a handle 3.

[0022] Refer to Fig. 5, which is a schematic view of the finished product of the dusting portion 1' of the duster 200 according to the second embodiment of the present invention. Similarly, the dusting portion 1' is formed by laminating a hot-meltable nonwoven fabric layer 12', an intermingled yam layer 11', a smooth nonwoven fabric layer 13', and a nonwoven/woven fabric layer 14' in this order then performing a hot-pressing process thereto, wherein the intermingled yarn layer 11' is comprised of a plurality of segmented intermingled yarn.

[0023] The dusting portion 1' undergone hot-pressing comprises fusion lines 15' which combine the hot-meltable nonwoven fabric layer 12', the intermingled yarn layer 11', the smooth nonwoven fabric layer 13', and the nonwoven/woven fabric layer 14' by fusion. The fusion lines 15' leave two openings 16' on the dusting portion 1' on the same side and form two juxtaposed-elongate pockets, wherein a slit 17 is further formed between the two elongate pockets so that the dusting portion 1' is easily to be folded.

[0024] Similar to the first embodiment of the present invention, the plurality of segmented intermingled yam of the intermingled yarn layer 11' also comprises an alternately loose and tight structure, therefore the performance of the dusting portion 1' is improved; and since each bundle of segmented intermingled yarn is formed by two strands of yam twisted in different direction, the each bundle of segmented intermingled yarn is effectively bound so as not to tangle with the other bundles of segmented intermingled yarn.

[0025] In addition, the widths of the hot-meltable nonwoven fabric layer 12', the smooth nonwoven fabric layer 13', and the nonwoven/woven fabric layer 14' are less than the width of the intermingled yarn layer 11', and the long sides of the hot-meltable nonwoven fabric layer 12', the smooth nonwoven fabric layer 13', and the nonwoven/woven fabric layer 14' are cut to be wavy or straight to effectively control the extending direction of the segmented intermingled yam of the intermingled yam layer 11'.

[0026] As shown in Fig. 6, the handle 3 is fork-shaped and comprises two elongate ends 31. The two elongate ends 31 are inserted into the two elongate pockets on the dusting portion 1' through the openings 16 in the direction indicated by the arrow, thereby forming the duster 200. With such a design, the dusting portion 1' and the handle 3 can easily engage/disengage with/from each other.

[0027] Next, please refer to Fig. 7, which shows a schematic view of the use of the duster 200according to the second embodiment of the present invention. It can be seen from the view that the segmented intermingled yarn of the dusting portion 1' of the duster 200 is exposed for capturing the dust 5 on a table 4, and the duster 200 involves the best dusting effect when the angle between the segmented intermingled yarn and the surface of the table is 90 degree.

[0028] The above detailed description is to exemplify the present invention with some embodiments, not to limit the scope of the present invention. It will be apparent to those skilled in the art that various changes and modification may be made without departing from the spirit and scope of the invention as defined in the following claims.

[0029] To sum up, this application not only involves innovation in techniques, also includes improvement on the effects of the conventional articles, which should sufficiently meet the invention patent requirements of novelty and inventive step. Therefore, this application is proposed based on law. It is respectfully requested that the present invention to be granted a patent, so as to encourage invention.

Reference Numeral List:

[0030] 

100, 200

duster

1, 1'

dusting portion

11, 11'

intermingled yarn layer

12, 12'

hot-meltable nonwoven fabric layer

13, 13'

smooth nonwoven fabric layer

14, 14'

nonwoven/woven fabric layer

15, 18

fusion line

16, 16'

opening

17

Slit

2, 3

handle

21

Spiral end

22

Hand-holding portion

31

elongate end

4

Table

5

Dust

Claims

1. A duster consisting of a dusting portion and a handle, which is characterized in that:

the handle includes a spiral end and a hand-holding portion,

the dusting portion includes:

a hot-meltable nonwoven fabric layer;

an intermingled yarn layer disposed on the hot-meltable nonwoven fabric layer and having a plurality of segmented intermingled yarn;

a smooth nonwoven fabric layer disposed on the intermingled yarn layer; and

a nonwoven/woven fabric layer disposed on the smooth nonwoven fabric layer;

wherein an accomodating space for receiving the handle is disposed on the dusting portion,
the widths of the hot-meltable nonwoven fabric layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are less than that of the intermingled yarn layer,
the long sides of the hot-meltable nonwoven fabric layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are cut to be wavy or straight to effectively control the extending direction of the segmented intermingled yarn of the intermingled yarn layer.

2. The duster according to claim 1, wherein each bundle of the segmented intermingled yarn is formed by two strands of yarn twisted in different direction.

3. The duster according to claim 1, wherein the hot-meltable nonwoven fabric layer, the intermingled yarn layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are laminated in this order and a hot-pressing process is performed thereto, such that the hot-meltable nonwoven fabric layer, the intermingled yarn layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are fused with a semi-closed fusion line, leaving the accommodating space.

4. The duster according to claim 1, wherein the spiral end of the handle is inserted into the accommodating space, such that the dusting portion becomes spiral along with the spiral end.

5. A duster consisting of a dusting portion and a handle, which is characterized in that:

the handle is fork-shaped and includes two elongate ends,

the dusting portion includes:

a hot-meltable nonwoven fabric layer;

an intermingled yarn layer disposed on the hot-meltable nonwoven fabric layer and having a plurality of segmented intermingled yarn;

a smooth nonwoven fabric layer disposed on the intermingled yarn layer; and

a nonwoven/woven fabric layer disposed on the smooth nonwoven fabric layer;

wherein an accomodating space for receiving the handle is disposed on the dusting portion,
the widths of the hot-meltable nonwoven fabric layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are less than that of the intermingled yarn layer,
the long sides of the hot-meltable nonwoven fabric layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are cut to be wavy or straight to effectively control the extending direction of the segmented intermingled yarn of the intermingled yarn layer.

6. The duster according to claim 5, wherein each bundle of the segmented intermingled yarn is formed by two strands of yarn twisted in different direction.

7. The duster according to claim 5, wherein the accommodating space is two juxtaposed pockets for receiving the two elongate ends of the handle, and the hot-meltable nonwoven fabric layer, the intermingled yarn layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are laminated in this order and a hot-pressing process is performed thereto, such that the hot-meltable nonwoven fabric layer, the intermingled yarn layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are fused with fusion lines, leaving the two pockets.

8. The duster according to claim 7, wherein a slit is formed between the two pockets so that the dusting portion is easily to be folded.

9. The duster according to claim 5, wherein the segmented intermingled yarn of the dusting portion is exposed, and the dusting effect of the duster becomes the best when the angle between the segmented intermingled yam of the dusting portion and the surface of an article to be cleaned is 90 degree.

10. A dusting sheet, comprising:

a hot-meltable nonwoven fabric layer;

an intermingled yarn layer disposed on the hot-meltable nonwoven fabric layer and

having a plurality of segmented intermingled yarn;

a smooth nonwoven fabric layer disposed on the intermingled yarn layer; and

a nonwoven/woven fabric layer disposed on the smooth nonwoven fabric layer,

wherein an accommodating space for receiving a handle of a duster is formed on the dusting sheet,
the widths of the hot-meltable nonwoven fabric layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are less than that of the intermingled yam layer,
the long sides of the hot-meltable nonwoven fabric layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are cut to be wavy or straight to effectively control the extending direction of the segmented intermingled yarn of the intermingled yarn layer.

11. The dusting sheet according to claim 10, wherein each bundle of the segmented intermingled yarn is formed by two strands of yarn twisted in different direction.

12. The dusting sheet according to claim 10, wherein the hot-meltable nonwoven fabric layer, the intermingled yarn layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are laminated in this order and a hot-pressing process is performed thereto, such that the hot-meltable nonwoven fabric layer, the intermingled yarn layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are fused with a semi-closed fusion line, leaving the accommodating space.

13. The dusting sheet according to claim 10, wherein the accommodating space is two juxtaposed pockets for receiving two elongate ends of the handle, and the hot-meltable nonwoven fabric layer, the intermingled yarn layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are laminated in this-order and a hot-pressing process is performed thereto, such that the hot-meltable nonwoven fabric layer, the intermingled yarn layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer are fused with fusion lines, leaving the two pockets.

14. The dusting sheet according to claim 13, wherein a slit is formed between the two pockets so that the dusting sheet is easily to be folded.

15. The dusting sheet according to claim 10, wherein the segmented intermingled yarn of the dusting sheet is exposed, and the dusting effect of the dusting sheet becomes the best when the angle between the segmented intermingled yarn of the dusting sheet and the surface of an article to be cleaned is 90 degree.

Drawing