CN101474112A - Absorbent product with channel - Google Patents
Absorbent product with channel Download PDFInfo
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- CN101474112A CN101474112A CN 200810000015 CN200810000015A CN101474112A CN 101474112 A CN101474112 A CN 101474112A CN 200810000015 CN200810000015 CN 200810000015 CN 200810000015 A CN200810000015 A CN 200810000015A CN 101474112 A CN101474112 A CN 101474112A
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- absorbent products
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Abstract
The invention provides a moisture-absorption article (1) which comprises a pervious top film (2), an impervious or pervious bottom film (3), and an absorption core (4) clamped between the top film and the bottom film; the moisture-absorption article has a longitudinal centerline (xx) which extends along the length direction; the two sides of the longitudinal centerline are respectively provided with at least one longitudinal channel (5) which basically extends along the length direction and is formed by the compression of the top film and the absorption core, wherein, a plurality of first projections (7) and second projections (8) are alternatively formed in each longitudinal channel (5) along the length direction; and the vertical straight-line distance (H) between the upper surfaces of the second projections and the bottom surfaces (5A) of the longitudinal channels is larger than the vertical straight-line distance (L) between the upper surfaces (7A) of the first projections (7) and the bottom surfaces (5A) of the longitudinal channels.
Description
Technical field
The present invention relates to absorbent commodity, especially be suitable for the absorbent products of making feminien hygiene care article, adult nursing article or Baby Care article, this absorbent products comprises top flat, saturating liquid/liquid-tight egative film of liquid and is positioned between the two absorbent cores, wherein, form at least two raceway grooves that extend along the length direction of absorbent products by the compression of top flat and absorbent cores.
Background technology
Usually, the transverse width of absorbent products is less than its longitudinal length, thereby liquid arrives the time of article lateral edges early than arriving the article longitudinal edge.In order to make absorbent products effectively prevent the liquid side leakage, adopted in both sides increase leakproof and protected screen, thickeied means such as absorbent article core center thickness in the prior art, but these means cause product manufacture to complicate.A kind of simple way is to form raceway groove by top flat and the absorbent cores of compressing absorbent products, is used to make liquid to flow along the raceway groove bearing of trend.
For this reason, for example Chinese patent ZL96120164.9 discloses a kind of sanitary towel, it is made of permeable surface layer, fluid-tight the inside layer and the suction core between this is two-layer, both sides are provided with a pair of compacting raceway groove that extends along suction core length direction on the suction core, described raceway groove is narrower at interval at the middle body of suction core length direction, wherein raceway groove has high pressure real part and low pressure real part, and they are alternately arranged along channel width dimension continuous crosscut raceway groove bottom surface and along orientation.In conjunction with its Fig. 2 and Fig. 3 as can be seen, in fact the upper surface of a plurality of high pressure real parts constitutes the raceway groove bottom surface, a plurality of low pressure real parts protrude on the raceway groove bottom surface, be that these low pressure real parts are formed in the projection in the raceway groove, they have identical projecting height, the identical in other words vertical line distance apart from the raceway groove bottom surface.Here, so-called high pressure real part be meant the surface layer of sanitary towel and suction core, be pressed downward the bigger part that contracts from the upper surface of surface layer, so-called low pressure real part be meant the surface layer of sanitary towel and suction core, be pressed downward the smaller part that contracts from the surface layer upper surface.Sanitary towel with said structure can suppress the diffusion of the menses in the raceway groove, this is because when menses flow into raceway groove, the menses at low pressure real part place spread to the high pressure real part at once, since the high pressure real part with regard to the surface layer upper surface dark and thereby suppress menses and flow to more shallow peripheral part, so stoped menses rapid diffusion along its length in raceway groove.
Summary of the invention
Although the described sanitary towel of Chinese patent ZL96120164.9 can stop menses rapid diffusion along its length in raceway groove, but, high pressure real part and low pressure real part alternately be formed in sanitary towel's raceway groove in the mode of continuous crosscut raceway groove bottom surface and thereby in raceway groove, formed the higher many high pressure real parts of density, in the case, density higher and thereby harder many high pressure real parts cause sanitary towel's integral body to feel harder, especially article surface is harder, thereby allows user feel uncomfortable.
The purpose of this invention is to provide a kind of absorbent products, compared with prior art, it has higher pliability, can prevent side leakage simultaneously.
For this reason, the invention provides a kind of absorbent products, the top flat that comprises liquid, the egative film of liquid-tight or saturating liquid and be sandwiched in top flat and egative film between absorbent cores, absorbent products has the longitudinal centre line that extends along its length direction, be respectively equipped with in the both sides of longitudinal centre line and extend along its length basically, because of compressing at least one longitudinal channel that this top flat and this absorbent cores form, wherein, in each longitudinal channel, alternately form a plurality of first and second projectioies outstanding along its length from the longitudinal channel bottom surface, second convex upper surface apart from the vertical line distance of longitudinal channel bottom surface in other words projecting height greater than distance or the projecting height of the first protruding upper surface apart from the longitudinal channel bottom surface.
In aforesaid absorbent products, in longitudinal channel, be provided with at least two kinds of different projectioies of projecting height, therefore in raceway groove, have only the absorbent products of highly identical a kind of projection to compare with above-mentioned prior art is described, because additional in the present invention a plurality of second projectioies less part of compaction in other words that is provided with, so reduced local density and hardness, made this absorbent products feel more soft according to absorbent products of the present invention.
In the present invention, the area sum of second convex upper surface of absorbent products preferably account for the longitudinal channel gross area about 20% to about 80%, be preferably 40% to 70%, be preferably about 50%.Be noted that at this longitudinal channel gross area is meant the projected area of the longitudinal channel in vertical view under the absorbent products flat condition, it comprises the area of the upper surface separately of above-mentioned first and second projectioies.According to the present invention, preferably all first projectioies and/or preferably all second projectioies basically longitudinally the width of raceway groove extend the whole width range of longitudinal channel.Certainly, the part of first and/or second projection basically longitudinally the width of raceway groove extend the whole width range of longitudinal channel, this also is feasible.Here, " basically longitudinally the width of raceway groove " relative channel width dimension of bearing of trend of comprising second projection forms the situation of certain angle.In this case, the bearing of trend of first projection is parallel to the bearing of trend of second projection.
The present invention also stipulates, is parallel to bearing of trend in second projection of this side at the bearing of trend of first projection of the either side of the cross central line of above-mentioned absorbent products.Especially, not parallel at the bearing of trend of first and second projectioies of cross central line one side with bearing of trend in first and second projectioies of opposite side.At this moment, the above-mentioned relatively cross central line angulation of bearing of trend of described both sides projection preferably equates.Especially, the angle of cut of the bearing of trend of first and/or second projection and cross central line is about 45 degree.
The second all projectioies basically longitudinally the width of raceway groove extend the whole width range of longitudinal channel, between two second adjacent projectioies, form a plurality of first projectioies, these first projectioies are preferably arranged in cross one another mode.Here, mutually intersect, further strengthened the ability that longitudinal channel stops the liquid effluent or flows to vertical two ends by making a plurality of first projectioies between adjacent two second projectioies.
Absorbent products of the present invention can have the cross central line that extends along its width, both sides at cross central line, on absorbent products, be respectively equipped with at least one lateral channel that broad ways is basically extended, that form because of compression top flat and absorbent cores, in lateral channel, alternately be formed with a plurality of first projection and a plurality of second projectioies, second convex upper surface of lateral channel apart from the vertical line of lateral channel bottom surface apart from greater than the vertical line distance of the first protruding upper surface apart from the lateral channel bottom surface.In the present invention, above-mentioned lateral channel and longitudinal channel can intersect, also can be non-intersect.In addition, the area sum of second convex upper surface of lateral channel account for the lateral channel gross area about 20% to about 80%, be preferably 40% to 70%, be preferably about 50%.Equally, the lateral channel gross area is meant the projected area of the lateral channel in vertical view under the absorbent products flat condition, and it is included in the area of the upper surface separately of first and second projectioies in the lateral channel.
In the present invention, longitudinal channel or lateral channel basically along its length or width extend, this comprises the situation that situation that above-mentioned raceway groove extends according to forms such as camber line, curve or broken lines and/or above-mentioned raceway groove extend in continuous or alternate mode.
Description of drawings
Below, will illustrate in greater detail the present invention in conjunction with the preferred embodiments and referring to accompanying drawing, wherein:
Fig. 1 represents a embodiment according to absorbent products of the present invention with vertical view;
Fig. 2 represents the channel region of absorbent products shown in Figure 1 with vertical view;
Fig. 3 represents to be used for another embodiment of the channel region of absorbent products of the present invention with vertical view;
Fig. 4 represents absorbent products shown in Figure 1 with office's cutaway view of A-A along the line.
The specific embodiment
Fig. 1 shows a embodiment according to absorbent products of the present invention with vertical view.Can see in conjunction with Fig. 1 and Fig. 4, whole with 1 absorbent products of representing comprise the top flat 2, liquid-tight of liquid or thoroughly liquid egative film 3 and be sandwiched between the two absorbent cores 4.Absorbent products 1 has the longitudinal centre line x-x of extension along its length and the cross central line y-y that broad ways is extended.In the both sides of longitudinal centre line x-x, be respectively equipped with basically a longitudinal channel 5 that extends along the length direction of absorbent products 1, form by compression top flat 2 and absorbent cores 3.Here, as shown in Figure 1, between the longitudinal channel 5 of longitudinal centre line x-x both sides, at the mutual spacing of the central part of length direction greater than its mutual spacing at the length direction two ends.In addition, also can be and/or other longitudinal channel 6 of the best curved extension of arranged outside in the inboard of above-mentioned longitudinal channel 5, with the effect of the anti-side leakage of further reinforcement.Certainly, in the present invention, can become as required at quantity, position and the development length of the longitudinal channel of each side of longitudinal centre line x-x.
As shown in Figure 1, form a plurality of first projection 7 and a plurality of second projectioies 8 at least in the longitudinal channel 5 of each side of longitudinal centre line x-x, described first and second projectioies alternately form along above-mentioned length direction.As shown in Figure 4, these have different height from the first outstanding projection 7 of bottom surface 5A of longitudinal channel 5 with second projection 8, in other words, greater than the upper surface 7A of the first projection 7 vertical line distance L apart from longitudinal channel 5 bottom surface 5A, the projecting height of second projection 8 is greater than the projecting height of first projection 7 in other words from the vertical line distance H of longitudinal channel 5 bottom surface 5A for the upper surface 8A of second projection 8.Thus one, by relative prior art in longitudinal channel 5, set up higher in other words from the top flat upper surface to less a plurality of second projectioies 8 of the degree of lower compression, with shorter in other words a plurality of first projectioies 7 that replace forming in this originally, compression degree is bigger, make the partial compression degree of especially channel region of absorbent products 1 reduce, local density reduces, and then integral hardness reduces, thereby can obtain more softish absorbent products.
According to the present invention, the area sum of the upper surface 8A of second projection 8 preferably accounts for about 20% to about 80% of the longitudinal channel gross area, here, the longitudinal channel gross area is meant the projected area of the longitudinal channel in vertical view under the absorbent products flat condition, and it comprises the upper surface area separately of the first and second above-mentioned projectioies.Select about 20% to about 80% numerical range to be because, if be lower than 20%, pliability is improved DeGrain, if surpass 80%, probably can cause because of top flat appears in compaction inadequately and separate with absorbent cores, this may be unfavorable for the guide functions of raceway groove.
As shown in Figure 1 and Figure 4, all second projection 8 basically longitudinally the width of raceway groove 5 (cross central line of absorbent products in other words) extend the whole width range of longitudinal channel 5.Here, each second projection 8 width of raceway groove 5 extension longitudinally basically can be proper horizontal expansion, also can be the angled extension of described relatively cross central line y-y.In this embodiment, the relative cross central line y-y of the bearing of trend of each second projection 8 roughly becomes miter angle, but this not necessarily, and the above-mentioned angle of second projection 8 not necessarily equates, promptly second projection 8 differs to establish a capital in parallel to each other and extends.Certainly, second projection 8 also can not extend the whole width range of longitudinal channel 5.Mode or except second projection 8 as an alternative, first projection 7 also can be basically longitudinally the width of raceway groove 5 extend the whole width range of longitudinal channel, perhaps only prolong and the part of width range.According to the present invention, in the whole length range of longitudinal channel 5, the bearing of trend of the first all projectioies 7 can be roughly parallel to the bearing of trend of second projection 8.Also can expect, be parallel to and/or be not parallel to the bearing of trend of second projection 8 of the same side at the bearing of trend of first projection 7 of the either side of the cross central line y-y of absorbent products 1.For example as shown in Figure 1, between adjacent two second projectioies 8 of cross central line y-y one side, 1 first projection 7 that is parallel to the bearing of trend extension of second projection 8 is intersected with 2 or 3 first projectioies 7 that the bearing of trend that is not parallel to second projection 8 extends, and forms a plurality of grid that roughly are square thus between adjacent two second projectioies 8.In addition, with regard to the same side of longitudinal centre line x-x, be not parallel to bearing of trend in second projection 8 of opposite side at the bearing of trend of second projection 8 of the side of cross central line y-y.
In addition, as shown in Figure 1,, also can on absorbent products 1, be respectively equipped with at least one lateral channel 10 of extending along its width basically, form because of compression top flat 2 and absorbent cores 4 in the both sides of the cross central line y-y of absorbent products 1.Lateral channel 10 can intersect with longitudinal channel 5, and preferably the mode to seamlessly transit forms the complete raceway groove of at least one circle thus.In lateral channel 10, preferably also alternately form a plurality of first projection 7 ' and a plurality of second projectioies 8 ', the upper surface of second projection 8 ' apart from the vertical line of lateral channel 10 bottom surfaces distance greater than the upper surface of first projection 7 ' vertical line distance apart from the lateral channel bottom surface, in other words, the projecting height of second projection is greater than the projecting height of first projection.From improving pliability and the angle of being convenient to the pressing mold manufacturing, the upper surface area sum of second projection 8 ' of lateral channel 10 preferably also accounts for about 20% to about 80% of the lateral channel gross area.Certainly, also can in described other lateral channel, preferably also form above-mentioned first and second projectioies 7 ' and 8 ' in inboard and/or other lateral channel of arranged outside of lateral channel.The layout of lateral channel is not limited to form shown in Figure 1, and those skilled in the art fully can be as required adjust quantity, position and development length in the lateral channel of the every side of cross central line.
In the above-described embodiments, the area of the upper surface of each second projection 8 is about 6.27 square millimeters, and its vertical height is about 0.9 millimeter, and the area of each grid that forms between two adjacent second projectioies is about 0.4 square millimeter.The upper surface area sum of second projection 8 accounts for about 50% of the longitudinal channel gross area.Obviously above numerical value is exemplary, and the present invention should not be confined to above-mentioned concrete numerical value.
Although abovely described bearing of trend, development length and both mutual alignments relation of first projection, 7 and second projection 8 in conjunction with Fig. 1, the present invention should not be limited to above-mentioned particular form.In order to make absorbent products 1 obtain ideal pliability, those skilled in the art can finish corresponding design or selection fully.
Fig. 3 shows another embodiment of the channel region that can be used for absorbent products of the present invention.In the longitudinal channel 15 of each side of longitudinal centre line x-x, form first projection 17 that extends the whole length range of longitudinal channel 15 basically along its length respectively here.In each longitudinal channel 15, longitudinally the length direction of raceway groove 15 forms second projection 18 of a plurality of each intervals.As mentioned above, the upper surface of second projection 18 apart from the vertical line of longitudinal channel bottom surface distance greater than the upper surface of first projection 17 vertical line distance apart from the longitudinal channel bottom surface.The second all projectioies 18 becomes the mode at 40 degree angles to extend the whole width range of longitudinal channel 15 with relative cross central line y-y, intersect with first projection 17 thus, like this, when seeing absorbent products when bowing, adjacent two second projectioies 18 roughly are the H shape with first bossing between the two.With regard to the same side of longitudinal centre line x-x, be not parallel to bearing of trend here, in second projection 18 of cross central line opposite side at the bearing of trend of second projection 18 of cross central line y-y one side.In addition, be formed with a plurality of longitudinal channel sections 16, in these longitudinal channel sections, also can form aforesaid first projection 17 and a plurality of second projection 18 in the inboard of longitudinal channel 15.As shown in Figure 3, also can form lateral channel 20 respectively at the two ends of longitudinal channel 15, it can smooth and easyly respectively carry out the transition to longitudinal channel 15, and also forms aforesaid first projection 17 and a plurality of second projection 18 in lateral channel 20.Here, no matter be in longitudinal channel 15, still in lateral channel 20, the area sum of the upper surface of second projection 18 preferably accounts for about 20% to about 80% of the raceway groove gross area.
Below, simple declaration is according to the pliability test process of absorbent products of the present invention, and pliability described herein is meant that in short transverse be sample stress deformation degree on the Z direction.At first, from according to of the present invention and according to shearing square sample down the channel region of the absorbent products of prior art, sample position and size can become according to absorbent cores shape, density and accumulation.Subsequently, utilization has constant speed (CRE) tester for elongation of acquisition of Basis of Computer Engineering data and framework control system, the Instron model 1122 that for example can buy on market or MTS model 1/G test the contrast with the result to above-mentioned sample, wherein the on average flexible intensity of test result numeric representation.The test operating procedure of Instron model 1122 or MTS model 1/G can be referring to relevant product operation instruction.Utilize the measurement result of above-mentioned test instrunment to show, the pliability of moisture absorption shape article of the present invention is improved.
Certainly, the present invention is not limited to the foregoing description, for example, such an embodiment also within the scope of the invention, promptly in absorbent products according to the present invention, the longitudinal channel 5 that replacement is provided with in the longitudinal centre line both sides, only be provided with respectively because of compression top flat and absorbent cores and form in the both sides of cross central line, the lateral channel of at least one horizontal expansion, in above-mentioned lateral channel, broad ways alternately forms a plurality of first and second projectioies outstanding from the lateral channel bottom surface, the second protruding upper surface apart from the vertical line distance of lateral channel bottom surface greater than the vertical line distance of the first protruding upper surface apart from the lateral channel bottom surface.As for concrete structure, shape and the layout of first and second projectioies in above-mentioned lateral channel, can adopt with above referring to the identical mode of the described embodiment of accompanying drawing.
Claims (10)
1. absorbent products, the top flat (2) that comprises liquid, the egative film (3) of liquid-tight or saturating liquid and be clipped in described top flat and described egative film between absorbent cores (4), described absorbent products (1) has the longitudinal centre line (x-x) that extends along its length direction, and be respectively equipped with in the both sides of described longitudinal centre line and extend along described length direction basically, because of compressing at least one longitudinal channel (5) that described top flat (2) and described absorbent cores (4) form, it is characterized in that, in each described longitudinal channel (5), alternately form from longitudinal channel bottom surface (5A) outstanding a plurality of first and second projectioies (7 along described length direction, 8), the vertical line of the upper surface (8A) of described second projection (8) distance described longitudinal channel bottom surface (5A) distance (H) is greater than the vertical line distance (L) of upper surface (7A) the distance described longitudinal channel bottom surface (5A) of described first projection (7).
2. absorbent products according to claim 1 is characterized in that, the area sum of the upper surface (8A) of described second projection (8) account for described longitudinal channel (5) the gross area about 20% to about 80%.
3. absorbent products according to claim 1 and 2 is characterized in that, all described first projectioies (7) and/or all described second projectioies (8) extend the whole width range of described longitudinal channel basically along the width of described longitudinal channel.
4. absorbent products according to claim 3 is characterized in that, the bearing of trend of described first projection (7) is arranged essentially parallel to the bearing of trend of described second projection (8).
5. absorbent products according to claim 3, it is characterized in that, described absorbent products (1) has the cross central line (y-y) that extends along its width, with regard to the same side of described longitudinal centre line (x-x), be arranged essentially parallel to bearing of trend in described second projection (8) of the same side at the bearing of trend of described first projection (7) of described cross central line either side.
6. absorbent products according to claim 5, it is characterized in that, with regard to the same side of described longitudinal centre line (x-x), described projection (7 in a side of described cross central line (y-y), 8) bearing of trend is not parallel with the bearing of trend in the described projection (7,8) of described cross central line opposite side.
7. according to claim 5 or 6 described absorbent products, it is characterized in that the bearing of trend of described first projection (7) and/or described second projection (8) and the angle of cut of described cross central line (y-y) are about 45 degree.
8. absorbent products according to claim 1 and 2, it is characterized in that, all described second projectioies (8) extend the whole width range of described longitudinal channel basically along the width of described longitudinal channel (5), be formed with a plurality of first projectioies (7) between adjacent two described second projectioies (8), described a plurality of first projectioies are arranged in cross one another mode.
9. absorbent products according to claim 1 and 2, it is characterized in that, described absorbent products (1) has the cross central line (y-y) that extends along its width, both sides at described cross central line, on described absorbent products (1), be respectively equipped with basically and extend along described width, because of compressing at least one lateral channel (10) that described top flat (2) and described absorbent cores (4) form, and in described lateral channel (10), alternately be formed with a plurality of first projectioies (7 ') and a plurality of second projection (8 ') along described width basically, the upper surface of second projection (8 ') of described lateral channel apart from the vertical line of lateral channel bottom surface distance greater than the upper surface of first projection (7 ') of described lateral channel vertical line distance apart from described lateral channel bottom surface.
10. absorbent products according to claim 9 is characterized in that, the area sum of the upper surface of second projection (8 ') of described lateral channel (10) account for described lateral channel (10) the gross area about 20% to about 80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810000015 CN101474112B (en) | 2008-01-02 | 2008-01-02 | Absorbent product with channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810000015 CN101474112B (en) | 2008-01-02 | 2008-01-02 | Absorbent product with channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101474112A true CN101474112A (en) | 2009-07-08 |
| CN101474112B CN101474112B (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810000015 Active CN101474112B (en) | 2008-01-02 | 2008-01-02 | Absorbent product with channel |
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| Country | Link |
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| CN (1) | CN101474112B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244883A (en) * | 2012-03-30 | 2014-12-24 | 尤妮佳股份有限公司 | Absorptive article |
| CN107735065A (en) * | 2015-05-15 | 2018-02-23 | 金佰利（中国）有限公司 | Absorbent article with profile fitting |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU752867B2 (en) * | 1998-11-30 | 2002-10-03 | Procter & Gamble Company, The | Absorbent article having channel |
| JP4180866B2 (en) * | 2002-09-09 | 2008-11-12 | ユニ・チャーム株式会社 | Absorbent article having elastic restoring portion and method for producing the same |
| CN101065086B (en) * | 2004-11-30 | 2011-03-16 | 宝洁公司 | Absorbent article having outwardly convex longitudinal central channels for improved protection |
-
2008
- 2008-01-02 CN CN 200810000015 patent/CN101474112B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244883A (en) * | 2012-03-30 | 2014-12-24 | 尤妮佳股份有限公司 | Absorptive article |
| CN104244883B (en) * | 2012-03-30 | 2016-06-22 | 尤妮佳股份有限公司 | Absorbent commodity |
| CN107735065A (en) * | 2015-05-15 | 2018-02-23 | 金佰利（中国）有限公司 | Absorbent article with profile fitting |
| US10779998B2 (en) | 2015-05-15 | 2020-09-22 | Kimberly-Clark Worldwide, Inc. | Absorbent article with contoured fit |
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| Publication number | Publication date |
|---|---|
| CN101474112B (en) | 2013-09-18 |
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