WO2011160669A1 - Embossing tool and embossed product - Google Patents
Embossing tool and embossed product Download PDFInfo
- Publication number
- WO2011160669A1 WO2011160669A1 PCT/EP2010/058708 EP2010058708W WO2011160669A1 WO 2011160669 A1 WO2011160669 A1 WO 2011160669A1 EP 2010058708 W EP2010058708 W EP 2010058708W WO 2011160669 A1 WO2011160669 A1 WO 2011160669A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- embossing
- segments
- product
- roll
- embossing roll
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0707—Embossing by tools working continuously
- B31F2201/0715—The tools being rollers
- B31F2201/0723—Characteristics of the rollers
- B31F2201/0733—Pattern
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0707—Embossing by tools working continuously
- B31F2201/0715—The tools being rollers
- B31F2201/0723—Characteristics of the rollers
- B31F2201/0738—Cross sectional profile of the embossments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0771—Other aspects of the embossing operations
- B31F2201/0776—Exchanging embossing tools
Definitions
- the invention relates to an embossing tool with the features of the pre-characterising part of claim 1. Further, the invention relates to an embossed product with the features of the pre-characterising part of claim 10.
- embossing on three dimensional products is difficult, especially products like tissue products or fluff products.
- Such products have a core which can be provided with a continuously end/or stepwise changing height.
- embossed depressions are of crucial interest. Especially, when drain depressions are provided, it is important that they perform the desired function to move moisture or liquids to be discharged with high speed and unimpededly to a target zone of the product. In such a case it might also be
- embossed depressions which vary with regard to their widths or depths over the length of the embossed depression.
- Such specific design of embossed grooves might also be desirable in case of homogeneous pulp-core products which have an even thickness and density.
- US 6,998,086 describes a rotary embossing roll with segments. These segments can be arranged at a different radial position of the roll using spacers of varying thicknesses.
- EP 1 321 286 Bl which also follows the same principle, namely to adjust the radial position of regions on the embossing surface of a rotary embossing roll.
- the anvil roll running in register with the embossing roll is modified to have discrete zones on its peripheral surface with different characteristics of the yielding layer. Such different characteristics can be a different material composition or a surface treatment
- the yielding layer of the anvil roll can also be thicker in specific zones. These different measures serve to influence the depth of embossing when such anvil roll cooperates and runs in synchronicity with an embossing roll .
- the embossing tool comprises a rotary embossing roll with an axis of rotation in its
- the embossing roll comprises at least two segments forming at least a part of the operative surface area of the embossing roll, each segment being provided with at least one raised embossing protrusion.
- the embossing tool is characterized in that the radial position and angular orientation of at least one segment is adjustable by means of at least two spaced apart, independently provided adjustment devices.
- the embossed product which is especially a tissue product or fluff product comprises embossed
- depressions in the product along at least one longitudinal depression the surface weight of the material surrounding the depression continuously and/or stepwise increases or
- the embossed product is characterized in that at least along one depression the density of the depression is essentially constant.
- Such a product is provided with a distinct pattern in the core which improves the aesthetic appearance of a product, the core of which is non-uniform. If the surface weight of the material surrounding the depression decreases or increases along its longitudinal extension, it is possible to control the spreading of liquid along the channels of the product. It is also possible to create a shape in the core of the product by providing a core with a plurality of depressions with a slowly increasing or
- the embossing tool is characterized in that at least two segments are positioned next to each other in the longitudinal direction of the embossing roll. According to another or additional preferred embodiment, at least two segments are positioned next to each other in a circumferential direction of the embossing roll. Therefore, it is possible to design the embossing roll in any suitable way such that segments positioned next to each other are arranged in a longitudinal direction and/or circumferential direction of the embossing roll. In view of the fact that the radial position and angular orientation of each segment is individually
- the embossing tool further comprises a fixing means for fixing the segments to a core element of the embossing roll.
- a fixing means for fixing the segments to a core element of the embossing roll.
- the adjustment devices are screws, preferably self-locking screws.
- This is an extremely easy way to provide the proper adjustment of segments on a core element of the embossing roll.
- self-locking screws the screws have only to be brought in a proper position before the segments are fixed in such position by using a separate fixing means.
- screws could also be used as a single means for both adjusting the position and fixing the segments to a core element.
- the adjustment devices provide for a maximum variation in the radial extension of 0.8mm, preferably 0.5mm. This is a reasonable range for commercial tissue or fluff products with a profiled core.
- the angular tilting of a segment relative to the longitudinal direction and/or circumferential direction does not exceed 45 degrees.
- the angular tilting depends on the size of a segment and on the variation in the radial
- At least one of the embossing protrusions of a segment has a gradually or stepwise varying thickness and/or height.
- the individual segments should not be too small. However, there might be cases in which a profiled core has high local variations in its topography. It is also possible that embossed depressions are positioned close to each other but have a very different function so that different requirements with regard to their geometry and the density of the
- embossing protrusions on a segment might be adjusted to serve special needs in order to give all possible options with regard to the geometry of embossed depressions and the material characteristics of the core material surrounding such depressions.
- the embossing tool further comprises an anvil roll cooperating with the embossing roll, the operative surface of the anvil roll being covered with the yielding material .
- the core of the product can consist of several sheets of material on top each other, either with the same size or different sizes to create a three dimensional core.
- the different materials are for example airlaid sheet, nonwoven, foam and tissue.
- the core of the product is suitable for many different applications like sanitary napkins, baby diapers and female and male incontinent products.
- Fig. 2 schematically shows three segments attached to the core of a rotary embossing roll and the
- Fig. 3a shows a schematic view on the operative surface area of a rotary embossing roll in development, i.e. put into a plane;
- Fig. 3b schematically shows an embossed product in cross- sectional view
- Fig. 4 shows a first inventive product, in the specific example a sanitary napkin with embossed grooves and additionally shows where individual segments of the embossing tool were provided;
- Fig. 5 shows a further inventive product, in the specific example a sanitary napkin with embossed grooves and additionally shows where individual segments of the embossing tool were provided.
- Fig. 1 schematically shows the inventive embossing tool which is an embossing roll generally denoted by reference numeral 10.
- the embossing roll is except for the segments provided on its operative surface area of a conventional type.
- the operative surface area 12 of the embossing roll 10 is provided with individual segments 14. It is not necessary that the whole operative surface area of the embossing roll is provided with individual segments. Depending on the product to be embossed it might be sufficient to provide only one or two segments 14 which have to have a specific
- Fig. 1 it can be seen that several segments 14a, 14b and 14c are arranged in the longitudinal direction of the embossing roll which is parallel to the rotational axis 16 of the embossing roll. Likewise, any technically feasible number of segments can also be arranged in a circumferential direction of the embossing roll 10, which can later be seen from Fig. 2.
- Fig. 1 schematically shows various embossing protrusions 18 which project from the circumferential surface area of each segment 14, 14a, 14b, 14c. What Fig. 1 also schematically shows is that the shape of the embossing protrusions 18 can be different as e.g. exemplified by embossing protrusions 18a and 18b. "Different shape" means that any of the basic geometrical dimensions like height, width and shape can be different. It also means that the embossing protrusions 18 which are only shown in a cross-sectional view in Fig. 1 might vary along their longitudinal extension.
- Fig. 2 schematically shows a part of an embossing roll consisting of a core 20 of the embossing roll and segments 14d, 14e and 14f attached to the core of the embossing roll.
- the dimensions in the schematic drawing of Fig. 2 are highly exaggerated and, for practical purposes, the maximum
- variation H in the radial extension should be in the range of 0.5mm, preferably 0.4mm. However, in order to more clearly show the radial and angular positioning of individual
- segment 14f is positioned such that the radial position is changed. In other words, the operative surface area of segment 14f is simply raised relative to e.g. a fixed element 22 of the embossing roll which is simply fixed by means of a suitable fixing means 24 but which cannot be adjusted in its radial position and/or angular
- Segment 14f is provided with adjustment devices which, in the specific embodiment as shown in Fig. 2, are adjustment screws 26 threaded into correspondingly arranged thread holes 28 in the core of embossing roll 10.
- segment 14e Adjacent to segment 14f is segment 14e which forms a step S relative to segment 14f. Such defined step between segments can be provided if the product to be embossed has a core profile which is stepped in the corresponding position.
- Segment 14e is also provided with adjustment screws which, however, are adjusted such that segment 14e is angularly oriented relative to the circumferential surface of the core 20 of the embossing roll 10. To this end, the adjustment screws individually engage the thread holed such as to achieve the angular orientation in the circumferential direction.
- adjustment screws individually engage the thread holed such as to achieve the angular orientation in the circumferential direction.
- segment 14d which is also angularly orientated relative to the circumferential surface of the core but positioned such that there is a smooth transition between segments 14e and 14b, i.e. no radial difference of the adjacent edges of segments 14e and 14d. Due to the exaggerated dimensions shown in Fig. 2, there is a
- segments 14d and 14e are only angularly adjusted so that one side of each segment abuts the core 20 and only the other side of these segments is lifted up, any desirable combination of a radial positioning as exemplified by segment 14f and angular positioning as exemplified by segments 14e and 14d can be realized.
- Fig. 2 does not show embossing protrusions on the operative surface area of the individual segments. However, each segment is provided with at least one raised embossing protrusion which is exemplified in Fig. 3 which is a
- embossing protrusions 18 are shown.
- the fixed element is provided with through holes 30 for suitable fixing means ⁇ not shown in Fig. 3) which can be conventional screws.
- Segments 14g and 14h are additionally provided with a plurality of adjustment devices 26 which serve to provide any suitable radial position and/or angular orientation of the segments when fixed to the core of an embossing roll.
- Figs . 4 and 5 give an example of a pulp-core product
- sanitary napkin 33 can include a liquid pervious top sheet, a substantially liquid impervious backsheet joined to the top sheet and an absorbent core positioned and held between the top sheet and the back sheet.
- the top sheet is operatively permeable to the liquids that are intended to be held or absorbed by the absorbent article.
- embossing tool as described above, differently shaped embossing grooves are generated in the top side of the core of the product.
- Such grooves are depressions which are formed by the embossing protrusions arranged on both fixed elements and segments forming the operative surface area of the embossing roll. From Fig.
- groove 34 can have a different width and that there are further grooves 36 having a smaller width.
- further grooves 36 are provided which should have a specific profile. The depths of grooves 36 at position A close to groove 38 should be higher than at position B remote from groove 38.
- Fig. 4 gives a first example of a homogeneous pulp-core product with even thickness
- Fig. 5 describes another example of such a pulp core product with a homogeneous core.
- This product is exemplified by sanitary napkin 33 having an uncompressed region 40 in the middle of the product.
- Such uncompressed region 40 creates a ridge.
- Starting from the uncompressed region 40 there is a plurality of grooves 44 which also have a varying depth. The depth of the grooves close to the uncompressed region is lower than the depths of the groove remote from the uncompressed region.
- four segments 14a, 14b, 14c, 14d could be used not forming part of the product as shown in Fig. 5 but denoted for illustrative purposes.
- the four segments 14a, 14b, 14c, 14d could be adjusted with regard to their individual angles in both main directions so that the depth of the grooves is less in the middle of the product. This means that the segments would be affixed to the core of an embossing roll such that they are close to the core in those corners of the individual segments which correspond to the uncompressed region 40 in the product and are adjusted such that the distance to the core of the embossing roll increases in both main directions with increasing distance from that corner corresponding to the uncompressed region.
- the embossing tool can be provided with heating elements. Such heating can be of advantage for embossing because the material melts to some extent and some adhesion takes place.
- Fig. 5 can also be based on a product having a uniform core thickness, whereas it is contemplated to provide grooves with a continuously varying depth.
- the embossing tool according to the invention can also be used to emboss a product 50 shown in cross-sectional view in Fig. 3b.
- Product 50 has a core with a varying thickness. There is a middle sector 50a with constant thickness, whereas end sectors 50b and 50c have a gradually increasing thickness.
- Such a product 50 could be produced by means of an operative surface of an embossing tool as shown in Fig. 3a with a fixed element 23 and two segments 14g and 14h in order to provide a groove 52 with uniform thickness over the product.
- segments 14g and 14h as shown in Fig. 3a have to be angularly adjusted relative to fixed element 22 so as to form a smooth transition with fixed element 22 and to account for the increasing thickness of the end regions of the pulp-core to be embossed. If a proper angular adjustment of the
- the correct orientation of individual segments can be
- characteristic data of sample ! products like sample surface weight and groove density.
- Groove thickness is determined as the distance between an anvil or base surface and a pressure foot used to apply a specified pressure. This can be easily carried out in a climatically controlled laboratory ⁇ controlled temperature and relatively humidity) and using a measurement device like Mitutoyo Instruments (Japan) model ID U1025 which has a accuracy of +/- 0.02mm).
- the thickness of the product in the groove area is measured using a precision digital measurement device with a flat bottomed rectangular pressure foot with a length of 10mm and a width of 1mm.
- the pressure foot is lowered towards a base of a groove with the pressure foot exerting a pressure of 96kPa towards the base corresponding to a mass of 97.8g.
- an average value can be calculated on a plurality of positions of the groove.
- the basis weight of a product can be easily calculated by punching out pieces of a well defined surface area and determining its mass using a laboratory scale (+/- O.OOOSg). From the groove thickness and the basis weight, the density of the groove can be estimated.
- the target to be optimized could be the surface weight index and the groove density index.
- the surface weight index is defined as the largest increase in the average surface weight between two adjacent parts (front and middle or middle and back of a sample product).
- the groove density index is defined as the largest increase in the average groove density between two adjacent parts of the sample product.
- the adjustment of the segments was only carried out in order to adapt to the specific needs of the product to be embossed.
- Such adjustment could also serve to compensate for a deflection of the whole treatment unit.
- Such deflection is influenced by the nip contact area between the product and the embossing roll, the elasticity of the unit consisting of the embossing roll and an anvil roll and the hardness of the product if this property should change within one product. If the nip contact area in an embossing unit increases, there is more material squeezed in the nip between the embossing roll and the anvil roll. Consequently, the force increases which gives rise to a deflection of the overall embossing unit.
- the adjustable embossing tool By the help of the adjustable embossing tool according the invention, it is possible to provide a different compression or density on different parts of a product.
- This general technology can be used on all kinds of products, like fluff and non-fluff products.
- the embossing tool also provides for a high variability to adjust to other types of products with low investment costs and even low changeover times. Besides a better aesthetic appearance of products with profiled cores, also products with a homogeneous pulp core of even thickness can be
- embossing grooves which move moisture or body liquids with high speed to a desired target zone of the product, e.g. a low density zone of the product.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Treatment Of Fiber Materials (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Description
Claims
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES10725755.2T ES2539481T3 (en) | 2010-06-21 | 2010-06-21 | Embossing tool |
MX2012013969A MX2012013969A (en) | 2010-06-21 | 2010-06-21 | Embossing tool and embossed product. |
EP10725755.2A EP2582515B1 (en) | 2010-06-21 | 2010-06-21 | Embossing tool |
PCT/EP2010/058708 WO2011160669A1 (en) | 2010-06-21 | 2010-06-21 | Embossing tool and embossed product |
PL10725755T PL2582515T3 (en) | 2010-06-21 | 2010-06-21 | Embossing tool |
RU2013102528/12A RU2530383C2 (en) | 2010-06-21 | 2010-06-21 | Relief forming tool and relief formed product |
US13/635,920 US8562329B2 (en) | 2010-06-21 | 2010-06-21 | Embossing tool and embossed product |
JP2013515710A JP5559938B2 (en) | 2010-06-21 | 2010-06-21 | Embossing tools and products |
CN201080067556.2A CN103025513B (en) | 2010-06-21 | 2010-06-21 | Knurling tool and embossed product |
SA111320417A SA111320417B1 (en) | 2010-06-21 | 2011-04-30 | Embossing tool and embossed product |
ZA2012/08838A ZA201208838B (en) | 2010-06-21 | 2012-11-22 | Embossing tool and embossed product |
TNP2012000564A TN2012000564A1 (en) | 2010-06-21 | 2012-11-29 | Embossing tool and embossed product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2010/058708 WO2011160669A1 (en) | 2010-06-21 | 2010-06-21 | Embossing tool and embossed product |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011160669A1 true WO2011160669A1 (en) | 2011-12-29 |
Family
ID=43589559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/058708 WO2011160669A1 (en) | 2010-06-21 | 2010-06-21 | Embossing tool and embossed product |
Country Status (12)
Country | Link |
---|---|
US (1) | US8562329B2 (en) |
EP (1) | EP2582515B1 (en) |
JP (1) | JP5559938B2 (en) |
CN (1) | CN103025513B (en) |
ES (1) | ES2539481T3 (en) |
MX (1) | MX2012013969A (en) |
PL (1) | PL2582515T3 (en) |
RU (1) | RU2530383C2 (en) |
SA (1) | SA111320417B1 (en) |
TN (1) | TN2012000564A1 (en) |
WO (1) | WO2011160669A1 (en) |
ZA (1) | ZA201208838B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140377438A1 (en) * | 2013-06-25 | 2014-12-25 | Frito-Lay North America, Inc. | System and apparatus for controlling blistering |
CN107351590A (en) * | 2017-07-06 | 2017-11-17 | 安徽开诚电器有限公司 | Knurling mould |
WO2023117033A1 (en) | 2021-12-20 | 2023-06-29 | Essity Hygiene And Health Aktiebolag | Disposable hygiene article with embossed absorbent core |
WO2023117032A1 (en) | 2021-12-20 | 2023-06-29 | Essity Hygiene And Health Aktiebolag | Disposable hygiene article with embossed absorbent core |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014115086A2 (en) * | 2013-01-22 | 2014-07-31 | Unilin, Bvba | Method and device for manufacturing products having a surface provided with embossments, and products obtained thereby |
US9416496B2 (en) * | 2013-10-16 | 2016-08-16 | Georgia-Pacific Consumer Products Lp | Method for reducing the bulk and increasing the density of a tissue product |
CN107364269A (en) * | 2017-06-26 | 2017-11-21 | 苏州派艾格包装材料有限公司 | A kind of embossing roll structure of high-efficiency abrasion-proof |
CN114653541B (en) * | 2022-04-20 | 2023-07-21 | 净呼吸生物科技有限公司 | Automatic gluing device for sanitary towel production |
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US20050064058A1 (en) * | 2003-09-19 | 2005-03-24 | Kimberly-Clark Worldwide, Inc. | Multi-segmented embossing apparatus and method |
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2010
- 2010-06-21 EP EP10725755.2A patent/EP2582515B1/en active Active
- 2010-06-21 ES ES10725755.2T patent/ES2539481T3/en active Active
- 2010-06-21 RU RU2013102528/12A patent/RU2530383C2/en active
- 2010-06-21 US US13/635,920 patent/US8562329B2/en active Active
- 2010-06-21 CN CN201080067556.2A patent/CN103025513B/en active Active
- 2010-06-21 PL PL10725755T patent/PL2582515T3/en unknown
- 2010-06-21 MX MX2012013969A patent/MX2012013969A/en active IP Right Grant
- 2010-06-21 WO PCT/EP2010/058708 patent/WO2011160669A1/en active Application Filing
- 2010-06-21 JP JP2013515710A patent/JP5559938B2/en not_active Expired - Fee Related
-
2011
- 2011-04-30 SA SA111320417A patent/SA111320417B1/en unknown
-
2012
- 2012-11-22 ZA ZA2012/08838A patent/ZA201208838B/en unknown
- 2012-11-29 TN TNP2012000564A patent/TN2012000564A1/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US20050064058A1 (en) * | 2003-09-19 | 2005-03-24 | Kimberly-Clark Worldwide, Inc. | Multi-segmented embossing apparatus and method |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140377438A1 (en) * | 2013-06-25 | 2014-12-25 | Frito-Lay North America, Inc. | System and apparatus for controlling blistering |
US9554580B2 (en) * | 2013-06-25 | 2017-01-31 | Frito-Lay North America, Inc. | System and apparatus for controlling blistering |
CN107351590A (en) * | 2017-07-06 | 2017-11-17 | 安徽开诚电器有限公司 | Knurling mould |
WO2023117033A1 (en) | 2021-12-20 | 2023-06-29 | Essity Hygiene And Health Aktiebolag | Disposable hygiene article with embossed absorbent core |
WO2023117032A1 (en) | 2021-12-20 | 2023-06-29 | Essity Hygiene And Health Aktiebolag | Disposable hygiene article with embossed absorbent core |
Also Published As
Publication number | Publication date |
---|---|
RU2013102528A (en) | 2014-07-27 |
MX2012013969A (en) | 2013-01-28 |
JP2013534878A (en) | 2013-09-09 |
PL2582515T3 (en) | 2015-11-30 |
CN103025513B (en) | 2016-11-09 |
TN2012000564A1 (en) | 2014-04-01 |
JP5559938B2 (en) | 2014-07-23 |
ES2539481T3 (en) | 2015-07-01 |
SA111320417B1 (en) | 2014-10-15 |
EP2582515B1 (en) | 2015-06-03 |
US8562329B2 (en) | 2013-10-22 |
EP2582515A1 (en) | 2013-04-24 |
CN103025513A (en) | 2013-04-03 |
US20130011512A1 (en) | 2013-01-10 |
ZA201208838B (en) | 2013-07-31 |
RU2530383C2 (en) | 2014-10-10 |
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