• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The tampon (1) has a proximal end (2) and a distal end (3) a middle part extending between the distal end and the proximal end and an extraction means (5) connected to the absorbent body and arranged at the distal end (3), the tampon having at least one distal end (3) with the exception of a passage opening (13 ) for the extraction means (5) completely covering cover of a nonwoven fabric (4), through which a leakage of fibers at the distal end (3) is prevented.
    公开号:AT515255A1
    申请号:T50005/2014
    申请日:2014-01-07
    公开日:2015-07-15
    发明作者:Harald Lenherr
    申请人:Ruggli Projects Ag；
    IPC主号:
    专利说明:

    The invention relates to a method of manufacturing a tampon, comprising the steps of: i) positioning a strip of nonwoven fabric on a strip of absorbent material such that a portion of the nonwoven strip projects past a narrow side of the strip of absorbent material; Iii) placing a stripper on the strip of absorbent material, iv) winding the strip of absorbent material and the strip of nonwoven into a roll, wherein the strip of nonwoven fabric comprises a portion of the strip of nonwoven fabric Covering the surface of the roll, v) bonding the protruding portion of the nonwoven strip to a portion of the nonwoven strip joined to the strip of absorbent material.
    The invention further relates to a tampon with at least one absorbent body made of an absorbent material, wherein the tampon has a proximal end and a distal end and a central part extending between the distal end and the proximal end and an extraction means connected to the absorbent body and arranged at the distal end having.
    In known tampons which are made of a rolled strip of absorbent material, there may be an unwanted detachment of fibers of the absorbent material at a pull-out end despite compression of the material in use, especially when detaching the extract means from the distal end with the fingers the case. Since the tampon is wound in the manufacture, there is also the danger with conventional tampons that a tampon "telescopes" out of the body after it has been used or removed (pull on the thread), as illustrated in FIG. 1. and at most parts of the strip of absorbent material, such as cotton wool, can remain in the body.
    It is therefore an object of the invention to overcome the above-mentioned disadvantage of the prior art.
    This object is achieved by a method of the type mentioned in the present invention that in step i) the strip of nonwoven fabric is positioned so that it also protrudes over a longitudinal edge of the strip of absorbent material, wherein an over the longitudinal edge of the strip of absorbent material protruding portion of the strip of nonwoven fabric is chosen so large that a front side of the roll from the protruding part is completely covered, and in a step iv) subsequent step, a distal end of the roll from which the extracting means protrudes, with the protruding portion of the nonwoven fabric with the exception of a passage for the extraction means completely covered and the protruding portion of the nonwoven fabric is connected to a the distal end to the passage opening completely covering, closed envelope. At this point it should be noted that after making the role and the shell further known steps, such as compacting and pressing by means of a press, can connect to produce the finished tampon.
    The solution according to the invention allows a complete covering of the end, on which the extraction means is arranged, with a nonwoven fabric. As a result, a telescoping or pulling apart of the wound tampon and a fiber loss of the tampon are very efficiently prevented. Under a nonwoven fabric, also referred to as nonwoven, in the present context, a textile
    Textile fabric, which is produced by applying at least one adhesive to a fiber mixture or on a nonwoven fabric made of synthetic and / or natural fibers and by subsequent drying. Characteristic of a nonwoven, however, is that the fibers are bonded by the adhesive in the nonwoven fabric. The nonwoven fabric is impermeable to fibers of the material from which the absorbent body of the tampon is made, and moreover can be made to be moisture-permeable or else waterproof. The nonwoven fabric may, for example, also have the form of a net or a perforated foil. It should also be noted at this point that the term nonwoven fabric is used as a synonym for the term nonwoven.
    Advantageously, the absorbent (fibrous) material is formed from one or more of materials such as rayon, cotton, pulp, cellulose wadding, tissue laminates, peat bog, bamboo or chemically reinforced, modified or crosslinked cellulosic fibers. This fibrous material has high flygroups and allows for the attachment of high amounts of fluid to the outside of the fibers and is biologically neutral. However, it is also possible to use absorbent (fibrous) materials made by one or more of the following synthetic materials, such as polyester fibers, polyolefin fibers, absorbent foams, absorbent sponges, absorbent polymers, capillary channel fibers, synthetic fibers, predominantly open-faced flexible polyurethane foam or fibers or threads of rayon or a structure type of the crystalline modification of cellulose II is formed.
    According to an advantageous embodiment of the invention, it may be provided that the distal end of the roller from which the extracting means protrudes, is covered with the protruding portion of the nonwoven fabric at stretched extracting means. By means of this embodiment, it is possible to ensure that the extraction means comes to rest outside the nonwoven fabric cover and does not hinder the production of the cover during the covering of the distal end with the projecting section.
    An advantageous development of the invention is that a peripheral edge region of the protruding portion of the strip of nonwoven fabric for He generation of the closed shell is bent in the direction of the extraction means and contacting portions of the projecting portion are connected together.
    According to a further variant of the invention, it may also be provided that the protruding portion of the strip of nonwoven fabric to produce the closed envelope is connected to a portion of the strip of nonwoven fabric covering the lateral surface.
    According to a preferred embodiment, the protruding portion of the strip of nonwoven fabric is joined by welding to the sheath. As an alternative to welding, other connection methods, such as, for example, bonding etc., can also be used. Conveniently, the strip of absorbent material may have a length whose amount is from a range of values whose lower limit is 150 mm and whose upper limit is 400 mm, the strip of nonwoven having a length whose amount is from a range of values, the lower limit 50 mm and its upper limit is 250 mm, wherein the strip of nonwoven fabric in step i) is positioned so as to project beyond the longitudinal edge of the strip of absorbent material by a length substantially equal to a radius of the roll produced in step iv) equivalent.
    Additionally, the width of the nonwoven web may be greater than the width of the web of absorbent material, with the nonwoven web positioned on the absorbent web in step i) such that the nonwoven web is at least covered three quarters of the width of the strip of absorbent material. In this embodiment of the invention, the nonwoven fabric extends over a large part of the lateral surface of the roll. In this way it can be ensured that a friction between the mucous membranes of the vagina and the outer surface of the tampon can be reduced and a fiber loss can be effectively prevented even at least in the middle part of the tampon. Of course, the strip can come off
    Extend nonwoven fabric also over the entire width of the strip of absorbent material, so that the entire tampon is surrounded by the nonwoven fabric,
    The abovementioned object can also be achieved with a tampon of the type mentioned at the outset in that the tampon has a cover made of a nonwoven fabric which completely covers at least the distal end, with the exception of a passage opening for the extraction means, through which fibers exit at the distal end End is prevented.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    In each case, in a highly simplified, schematic representation:
    Figure 1 is a telescoping of a conventional, wound tampon by exerting a train on the extractor.
    FIG. 2 shows a tampon according to the invention in a perspective view; FIG.
    FIG. 3 is a perspective view showing an arrangement of an absorbent material and a nonwoven fabric according to a manufacturing step of manufacturing the tampon of FIG. 2; FIG.
    Fig. 4 is a plan view of the arrangement of Fig. 3;
    FIG. 5 shows the arrangement from FIG. 3 in a rolled-up state; FIG.
    Fig. 6 shows the arrangement of Fig. 5 with a closed by the nonwoven fabric NEN distal end.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.
    The embodiments show possible embodiments of the tampon according to the invention, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are possible with each other and this variation possibility due to the teaching of technical action representational invention in the skill of those skilled in this technical field.
    Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.
    The task underlying the independent inventive solutions can be taken from the description. All statements of value ranges in the present description should be understood to include any and all sub-ranges thereof, e.g. is the statement 1 to 10 to be understood that all sub-areas, starting from the lower limit 1 and the upper limit 10 are included, ie. all sub-areas begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.
    According to FIG. 2, a tampon 1 according to the invention comprises an absorbent body made of an absorbent material 6, for example wadding. The tampon 1 has a proximal end 2 and a distal end 3 and a central part extending between the proximal end 2 and the distal end 3. It is advantageous if the tampon 1 is formed round or rounded at the proximal end 2.
    At the distal end 3, an extraction means 5 connected to the absorbent body is arranged. At its distal end 3, a cover of a strip 4 of a nonwoven fabric which completely covers the distal end 3 is arranged, with the exception of a passage opening provided for the extraction means 5 with the reference symbol 13 in FIG. Preferably, the passage opening 13 has a diameter which essentially corresponds to a diameter of the extraction means 5. The cover prevents telescoping of the tampon and leakage of fibers at the distal end 3. Thus, it is shown by way of example in FIG. 1 how a conventional tampon can be pulled apart (telescoped) by exerting a tension with the extraction means 5. In this case, a winding of a connected to the extractor 5, wound strip 6 of absorbent material is pulled apart in the longitudinal direction, which can occur in conventional tampons to a resolution of the tampon.
    The middle part of the tampon 1 may be cylindrical. But it is also possible that at least the middle part is frusto-conical. However, the cylinder or the cone or the truncated cone can also extend continuously from the proximal end to the distal end. In all of the aforementioned three-dimensional shapes of the tampon 1, any cross-sectional changes over a length of the tampon 1 are possible, e.g. a wave-shaped course or at least over a part of the circumference circumferential or longitudinally extending recesses.
    A further advantageous development provides that at least the middle part of the tampon 1 is provided with depressions or grooves extending in the longitudinal direction thereof and / or that the depressions or grooves in the direction of the longitudinal center axis of the tampon 1 are wavy, preferably with a constant height of the amplitude , whereby an enlargement of the surface of the tampon 1 takes place whereby an increased uptake of body fluid is possible. An even higher surface for moisture absorption can be achieved in that the grooves or depressions run spirally or helically.
    In a method according to the invention for producing the tampon 1 shown in FIG. 2, according to FIGS. 3 and 4, the strip 4 made of a nonwoven fabric is positioned on a strip 6 made of an absorbent material, part 8 of the strip 4 being extended over a narrow side 7 of the strip 6 made of absorbent material. Furthermore, the strip 4 is positioned on the strip 6 so that it also projects beyond a longitudinal edge 10 of the strip 6. A over the longitudinal edge 10 of the strip 6 protruding portion 11 of the strip 4 is chosen so large that after rolling up the strips 4 and 6 to a roll 9, an end face 12 of this roller 9 can be completely covered with the protruding portion 11, as this is shown in Figs. 5 and 6.
    The absorbent structure of the strip 6 can be made from a variety of sizes and shapes and from a variety of liquid-absorbent materials.
    Of course, it is desirable to use absorbent materials containing a minimum level of extraneous materials because the product remains in the body for a period of time. Retained soluble foreign materials could present a safety hazard if they are toxic, irritating or sensitive.
    A list of useful materials includes cellulosic materials such as rayon, cotton, pulp, cellulose wadding, tissue sheeting, peat gauze, bamboo and chemically reinforced, modified or crosslinked cellulosic fibers; synthetic materials such as polyester fibers, polyolefin fibers, absorbent foams, for example, a resilient polyurethane foam, absorbent sponges, absorbent polymers, absorbent gelling materials, processed fibers such as capillary channel fibers, and multi-limb fibers; synthetic fibers or an equivalent material or combinations of materials or mixtures thereof.
    When using such plastic foams, it is also possible to partially close the outer skin, for example by adjusting the temperature in the production of the absorbent body, that is to achieve a closed skin in the outdoor area due to partial temperature influence. As a result, it is additionally possible to make it more difficult or prevent the escape of liquid received in the foam structure. Such a design may be advantageous, especially in the proximal end region 4 of the tampon 1.
    The preparation of the tampon 1 can be carried out in the context of the invention of different materials that maintain their condition under conditions in the vagina or uterus, that is, at body temperatures a pH of about 4 for a long time and no toxins or release harmful mucous membrane solutions or the like. For example, flexible polyurethane foams having a very low density and a predominantly open-line structure can be used with advantages as material for the strip 6. The use of more absorbent material also further reduces the risk of fluid leakage. The advantage for such foam-like structures lies in the fact that the open cells in the delivery state or prior to insertion into the vagina can be filled with drugs or lubricants that can be delivered to the mucous membranes of the vagina or uterus in the inserted state.
    It is also advantageous if the materials used for the nonwoven fabric are biodegradable and, for example, PLA or other biodegradable plastics or plastic mixtures or threads or fibers or recycled plastics such as R-PP, R-PET or the like optionally in different mixtures or as multilayer parts of these materials are formed.
    Preferably, the strip 6 has a length I whose magnitude comes from a range of values whose lower limit is 150 mm and whose upper limit is 400 mm. The strip 4 may have a length c whose magnitude comes from a range of values whose lower limit is 50 mm and the upper limit is 250 mm. The strip 4 is preferably positioned so that it projects beyond the longitudinal edge 10 of the strip 6 by a width b which essentially corresponds to a radius of the roller 9.
    According to a preferred embodiment, the strip 6 has a length l of 255 mm, wherein the part 8 has a length a of 30 mm and the strip 4 a
    Total length c of 127 mm. The section 11 in this case has a width b of 30 mm.
    Moreover, an entire width of the strip 4 may be greater than an entire width of the strip 6. The strip 4 is particularly preferably positioned on the strip 6 so that the strip 4 extends over at least three quarters of the width of the strip 6, as this is shown in Figures 3 and 4.
    After positioning the strip 4 on the strip 6, the strip 4 is connected to the strip 6. The bonding of the strips 4 and 6 can be done for example by welding, gluing, sewing or any other suitable connection form.
    In a further step, a pull-out means 5, for example a thread or a cord, is attached to the strip 6 of absorbent material. Preferably, the strip 6, as shown in Figures 2 and 3, wrapped with the extractor 5. Then, the strips 4 and 6 are wound into the roll 9. Here, the winding direction is chosen so that the strip 4 covers a portion of a lateral surface of the roller 9, as shown for example in Fig. 5.
    The protruding part 8 of the strip 4 is connected to a connected to the strip 6 portion 15 of the strip 4 into a closed ring, for example by welding or gluing.
    A distal end of the roller 9, from which the extracting means 5 protrudes, is completely covered with the protruding portion 11 of the strip 4, with the exception of the passage opening 13 for the extracting means 5. The protruding portion 11 of the strip 4 is then connected to a closed shell completely covering the distal end except for the passage opening 13.
    The covering of the distal end of the roller 9 with the protruding portion 11 of the strip 4 is particularly preferably carried out with the extraction means 5 extended. The covering of the distal end of the roller 9 can be achieved by bending or folding a peripheral edge region 14 of the projecting portion 11 in the direction of the (FIG. stretched) extract means 5, wherein the passage opening 13 is left free. Inter-contacting portions of the projecting portion 11 can then be joined together, for example by welding or gluing, so that a closed cover is formed. In this embodiment, it is advantageous if the section 11 corresponds approximately to a radius of the roller 9.
    Alternatively or in addition to the variant mentioned in the last section, the section 11 of the strip 4 for producing the closed envelope could also be connected to the section 15 of nonwoven fabric arranged on the lateral surface of the roll. If the width b of the section 11 is slightly larger than the diameter of the roller 9, a region of the section 11 can be folded over the entire distal end face 12 of the roller 9 and connected to the section 15. It has proven to be advantageous if the folded over the end face of the roller 9 part of the section 11 has an opening, for example in the form of a slot for carrying out the extraction means 5.
    The role 9 shown in Figure 6 with the cover of the distal end in the form of a closed shell of the nonwoven or nonwoven 4 is a preform, which subsequently in known manufacturing steps, such as pressing and compacting in a press to the tampon 1 shown in Figure 2 is further processed.
    For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the tampon, this or its components have been shown partially unevenly and / or enlarged and / or reduced in size.
    LIST OF REFERENCE NUMERALS 1 tampon 2 proximal end 3 distal end 4 strips of nonwoven fabric 5 separation means 6 strips of absorbent material 7 narrow side 8 part of the strip of nonwoven fabric 9 roll 10 longitudinal edge 11 projecting section 12 end face of the roll 13 passage opening 14 edge region 15 section of the nonwoven strip a Length b width c total length I length
    权利要求:
    Claims (8)
    [1]
    1. A method for producing a tampon (1), comprising the following steps: i) positioning a strip (4) of a nonwoven fabric on a strip (6) of an absorbent material, so that a part (8) of the strip (4 ) of nonwoven fabric over a narrow side (7) of the strip (6) of absorbent material, ii) bonding the strip (4) of nonwoven fabric with the strip (6) of absorbent material, iii) placing a separation means (5) on the strip (6) absorbent material, iv) rolling up the strip (6) of absorbent material and the strip (4) of nonwoven fabric into a roll (9) so that the nonwoven fabric covers at least a portion of a lateral surface of the roll (9), v) Bonding the protruding part (8) of the strip (4) of nonwoven fabric to a section (15) of the nonwoven strip (4) connected to the strip (6) of absorbent material, characterized in that in step i) the strip (4 ) a nonwoven fabric is positioned so that it also protrudes over a longitudinal edge (10) of the strip (6) of absorbent material, whereby a section (11) of the strip (4) projecting beyond the longitudinal edge (10) of the strip (6) of absorbent material ) is selected from nonwoven fabric so large that a front side (12) of the roller (9) of the protruding portion (11) is completely coverable, and in a step iv) subsequent step, a distal end of the roller (9), of which Extractor (5) projects, with the protruding portion (11) of the strip (4) made of nonwoven fabric except for a passage opening (13) for the extractor (5) completely covered and the projecting portion (11) of the strip (4) of nonwoven fabric one of the distal end to the passage opening (13) completely covering, closed shell is connected.
    [2]
    2. The method according to claim 1, characterized in that the distal end of the roller (9) from which the extraction means protrudes, with the protruding portion (11) of the strip (4) made of nonwoven fabric is stretched with extracting means (5).
    [3]
    3. The method according to claim 1 or 2, characterized in that a peripheral edge region (14) of the projecting portion (11) of the strip (4) made of nonwoven fabric for producing the closed shell in the direction of the extraction means (5) is bent and contacting portions the protruding portion (11) are interconnected.
    [4]
    4. The method according to any one of claims 1 to 3, characterized in that the protruding portion (11) of the strip of nonwoven fabric to produce the closed shell with a lateral surface covering portion (15) is bonded from nonwoven fabric.
    [5]
    5. The method according to any one of claims 1 to 4, characterized in that the protruding portion (11) of the strip (4) made of nonwoven fabric is connected by welding to the sheath.
    [6]
    6. The method according to any one of claims 1 to 5, characterized in that the strip (6) of absorbent material has a length (I) whose amount comes from a range of values whose lower limit is 150 mm and whose upper limit is 400 mm, wherein the strip (4) of nonwoven fabric has a length (c) the amount of which comes from a value range whose lower limit is 50 mm and the upper limit is 250 mm, wherein the strip (4) made of nonwoven fabric in step i) is positioned in that it projects beyond the longitudinal edge (10) of the strip (6) of absorbent material by a width (b) which substantially corresponds to a radius of the roll (9) produced in step iv).
    [7]
    A method according to any one of claims 1 to 6, characterized in that a width of the strip (4) of nonwoven fabric is greater than a width of the strip (6) of absorbent material, the strip (4) of nonwoven fabric in step i) positioned on the absorbent material strip (6) such that the nonwoven strip (4) covers at least three quarters of the width of the absorbent material strip (6).
    [8]
    8. tampon (1) with at least one absorbent body of an absorbent material (6), wherein the tampon (1) has a proximal end (2) and a distal end (3) and extending between the distal end and the proximal end middle part and a withdrawal means (5) arranged at the distal end (3) and connected to the absorbent body, characterized in that the tampon completely covers at least one distal end (3) with the exception of a passage opening (13) for the extraction means (5) Cover of a strip (4) made of nonwoven fabric, through which a leakage of fibers at the distal end (3) is prevented.
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    同族专利:
    公开号 | 公开日
    AT515255B1|2015-10-15|
    WO2015104301A1|2015-07-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CA2085923A1|1992-09-23|1994-03-24|Donald Albert Sheldon|Tampon having a liquid-permeable cover|
    DE9217228U1|1992-12-17|1993-03-18|Corovin Gmbh, 3150 Peine, De|
    DE202012011679U1|2012-12-05|2013-02-06|Rauscher Consumer Products Gmbh|Tampon and device for making a tampon|
    SE413979B|1977-12-21|1980-07-07|Moelnlycke Ab|catamenial tampon|
    DE3634704A1|1986-10-11|1988-04-14|Ver Papierwerke Ag|Compressed rod-shaped tampon for female hygiene|
    AU5953794A|1992-12-30|1994-08-15|Tambrands, Inc.|Tampon|
    US9211216B2|2012-06-29|2015-12-15|Kimberly-Clark Worldwide, Inc.|Tampon method of manufacture|AT517380A1|2015-06-25|2017-01-15|Ruggli Projects Ag|Method for producing a tampon|
    EP3400918B1|2017-05-10|2021-04-07|Ontex BV|Improved tampon withdrawal system and method for the fabrication thereof|
    法律状态:
    2019-09-15| MM01| Lapse because of not paying annual fees|Effective date: 20190107 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50005/2014A|AT515255B1|2014-01-07|2014-01-07|Method for producing a tampon|ATA50005/2014A| AT515255B1|2014-01-07|2014-01-07|Method for producing a tampon|
    PCT/EP2015/050181| WO2015104301A1|2014-01-07|2015-01-07|Method for producing a tampon|
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